All Stories

  1. UV nanosecond laser precision etching on copper-clad polyimide for flexible thin film antenna pattern

    Article • Optics & Laser Technology, September 2026, Elsevier

    Dr Kai-Da Xu

  2. Inverse Design of Pixelated Differential Bandpass Filters Using a Proximal Policy Optimization Framework Assisted by a Convolutional Neural Network Surrogate Model

    Article • Electronics, August 2026, MDPI AG

    Dr Kai-Da Xu

  3. A millimeter-wave on-chip wideband bandpass filter with low in-band loss

    Article • Microelectronics Journal, May 2026, Elsevier

    Dr Kai-Da Xu

  4. Response Time Improvement of Liquid Crystal Reflectarray Using Chiral Dopant With Polar Group

    Article • IEEE Antennas and Wireless Propagation Letters, March 2026, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  5. Compact S- and C-Band Single-/Dual-Band Bandpass Filters with Multiple Transmission Zeros Using Spoof Surface Plasmon Polaritons and Half-Mode Substrate Integrated Waveguide

    Article • Electronics, January 2026, MDPI AG

    Dr Kai-Da Xu

  6. Time-modulated metasurfaces with both amplitude and phase control ability at carrier frequency

    Article • Optics Express, January 2026, Optical Society of America (OSA)

    Dr Kai-Da Xu

  7. Gain loss in metasurfaces caused by reflection-coefficient quantization: an error vector magnitude approach

    Article • Optics Express, January 2026, Optical Society of America (OSA)

    Dr Kai-Da Xu

  8. An Ultra-Wideband 1-Bit Reconfigurable Reflectarray Element with Improved Angular Stability

    Article • IEEE Antennas and Wireless Propagation Letters, January 2026, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  9. 3-D Printed Millimeter-Wave Self-Diplexing Filtering Waveguide Antenna with Orthogonal Circular Polarizations

    Article • IEEE Transactions on Antennas and Propagation, January 2026, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  10. A Tunable Filtering Attenuator Based on Lossy-Tuned Multimode Resonators

    Article • IEEE Microwave and Wireless Technology Letters, January 2026, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  11. UV Nanosecond Laser Precision Etching on Copper-Clad Polyimide for Flexible Thin Film Antenna Pattern

    Article • January 2026, Elsevier

    Dr Kai-Da Xu

  12. An Optimization Method for Cavity Bandpass Filters Using a Transformer-Based Deep Neural Network Surrogate Model

    Article • IEEE Transactions on Microwave Theory and Techniques, January 2026, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  13. A Compact 3-D Nonresonant Junction Dual-Band Diplexer With Coaxial Ceramic Resonators: Synthesis and Design

    Article • IEEE Transactions on Microwave Theory and Techniques, January 2026, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  14. ML-SDR Framework for Selective & Rapid Detection of Volatile Organic Compounds

    Article • IEEE Sensors Journal, January 2026, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu, Dr Shubhankar Majumdar

  15. A Broadband In-line Transition From Microstrip Line to Groove Gap Waveguide with a Tunable In-band Notch

    Article • IEEE Transactions on Components Packaging and Manufacturing Technology, January 2026, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  16. High-Isolation Dual-Band Bandpass Filter and Diplexer Based on High-Order Modes of Spoof Surface Plasmon Polaritons

    Article • IEEE Transactions on Plasma Science, January 2026, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  17. D -Band Waveguide Bandpass Filter Based on Periodic Cylindrical Cavities and Double Ridges

    Article • IEEE Microwave and Wireless Technology Letters, January 2026, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  18. Terahertz Waveform‐Selective Antenna Using a Patch Structure Loaded with Nonlinear Circuits

    Article • Advanced Photonics Research, December 2025, Wiley

    Dr Kai-Da Xu

  19. A filtering power divider with high selectivity based on surface acoustic wave resonator

    Article • AEU - International Journal of Electronics and Communications, December 2025, Elsevier

    Dr Kai-Da Xu

  20. Millimeter-Wave On-Chip Dual-Band Bandpass Filter Using Multi-Stub Resonator in GaAs Technology

    Article • Microelectronics Journal, December 2025, Elsevier

    Dr Kai-Da Xu

  21. Compact Inline Dual-Mode Dielectric waveguide Diplexers With Controllable Transmission Zeros

    Article • Physica Scripta, November 2025, Institute of Physics Publishing

    Dr Kai-Da Xu

  22. RF Multifunctional Components with Integrated Filtering Characteristics: A Review

    Article • Microwave, November 2025, MDPI AG

    Dr Kai-Da Xu

  23. Tunable Fano resonance with high sensitivity customizable via deep learning

    Article • Journal of Applied Physics, September 2025, American Institute of Physics

    Dr Kai-Da Xu

  24. Graphene-Based Absorptive Gasket for Chip Packages With Enhanced Radiation-Suppression and Heat-Dissipation Capabilities

    Article • IEEE Transactions on Microwave Theory and Techniques, September 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  25. Inverse design of tunable high-sensitivity Fano resonators with black phosphorus utilizing deep learning

    Article • Physica Scripta, August 2025, Institute of Physics Publishing

    Dr Kai-Da Xu

  26. A 1-bit Broadband Reconfigurable Electromagnetic Surface With Switchable Modes of Reflection and Tunable Absorption

    Article • IEEE Transactions on Antennas and Propagation, August 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  27. Compact Self-Decoupling Cylindrical Pattern-Diversity Dielectric Resonator Antenna

    Article • IEEE Antennas and Wireless Propagation Letters, August 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  28. A super-compact dual-band bandpass filter using mixed lumped and distributed circuits

    Article • Journal of Electromagnetic Waves and Applications, July 2025, Taylor & Francis

    Dr Kai-Da Xu

  29. A Waveform-Selective Antenna Loaded With a Nonlinear Circuit

    Article • IEEE Antennas and Wireless Propagation Letters, July 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  30. A Compact W-Band Waveguide Lowpass Filter With Sharp Cutoff Skirt and Wide Stopband

    Article • IEEE Microwave and Wireless Technology Letters, July 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  31. A Terahertz On-Chip Lowpass Filter Based on Spoof Surface Plasmon Polaritons

    Article • IEEE Electron Device Letters, July 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  32. Millimeter-Wave Filtering Power Divider With Sharp Roll-Off Skirt Using Rectangular Waveguide-Spoof Surface Plasmon Polariton Structure

    Article • IEEE Transactions on Components Packaging and Manufacturing Technology, July 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  33. Full-Metal Millimeter-Wave Filtering Frequency-Scanning Leaky-Wave Antenna Based on Spoof Surface Plasmon Polaritons

    Article • Optics Express, June 2025, Optical Society of America (OSA)

    Dr Kai-Da Xu

  34. A Narrowband Energy-Selective Surface With High-Selectivity for 5G Wireless Communications

    Article • IEEE Transactions on Microwave Theory and Techniques, June 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  35. Miniaturized Dual-Band Bandpass Filter Using Triple-Mode Dielectric Waveguide Resonators With Adjustable Capacity in Transmission Zeros

    Article • IEEE Microwave and Wireless Technology Letters, June 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  36. Wideband In-Line H-Plane Transition From Microstrip Line to Air-Filled Rectangular Waveguide

    Article • IEEE Transactions on Plasma Science, May 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  37. Broadband terahertz absorber design based on fractal structure

    Article • Journal of Physics D Applied Physics, April 2025, Institute of Physics Publishing

    Dr Kai-Da Xu

  38. Dual-Band LTCC Substrate Integrated Cavity Slot Antenna Arrays in D-Band for 6G IoT Applications

    Article • IEEE Internet of Things Journal, April 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  39. Channel-Enhanced Transmission–Reflection Switchable Reconfigurable Intelligent Surface With Arbitrary Source and Terminal Positions

    Article • IEEE Transactions on Antennas and Propagation, April 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  40. A Sequential Rotation Filtering Network for High Circular Polarization Purity Antenna Array

    Article • IEEE Microwave and Wireless Technology Letters, April 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  41. A Narrowband Bandpass Filter With Wide Stopband Using Mixed Lumped and Distributed Circuits

    Article • Microwave and Optical Technology Letters, March 2025, Wiley

    Dr Kai-Da Xu

  42. Rectangular-Cavity Bandpass Filters With Large Metal Cylinders and Different Fillets

    Article • IEEE Microwave and Wireless Technology Letters, March 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  43. Conformal reconfigurable holographic metasurface for multifunctional radiation and scattering modulation

    Article • Optics Express, January 2025, Optical Society of America (OSA)

    Dr Kai-Da Xu

  44. Compact Tri-Band Bandpass Filter with Wide Upper Stopband Based on Spoof Surface Plasmon Polaritons and Open-/Short-Circuited Stubs

    Article • Electronics, January 2025, MDPI AG

    Dr Kai-Da Xu

  45. Millimeter-Wave Bandpass Filter Using Rectangular Waveguide and SSPP With a Notched Band

    Article • IEEE Photonics Technology Letters, January 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  46. 3-D Thermal Model with Lateral Thermal Resistance for Fast Thermal Analysis of Complex Stacked Structures

    Article • IEEE Journal on Emerging and Selected Topics in Circuits and Systems, January 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  47. A Wideband Continuously-Tunable Quasi-Reflectionless Filtering Attenuator

    Article • IEEE Microwave and Wireless Technology Letters, January 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  48. Compact Bandpass Filter Based on Interdigital Shorted Stepped-Impedance Stub SSPPs With Wide Stopband Rejection

    Article • IEEE Microwave and Wireless Technology Letters, January 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  49. Compact Millimeter-Wave Single- and Dual-Band On-Chip Bandpass Filters Using GaAs Technology

    Article • IEEE Journal of the Electron Devices Society, January 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  50. D-Band E-Plane Waveguide Bandpass Filters Using Spoof Surface Plasmon Polaritons and Slotted Metal Diaphragms

    Article • IEEE Transactions on Microwave Theory and Techniques, January 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  51. D-Band Low-Loss Moderate- and Broad-Band Bandpass Filters Based on Single-Ridge Waveguide Using High-Order Modes for 6G Applications

    Article • IEEE Transactions on Microwave Theory and Techniques, January 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  52. Ka-Band H-Plane Horn Antenna Based on Double-Sided Groove Gap Waveguide

    Article • IEEE Antennas and Wireless Propagation Letters, January 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  53. Monoblock Quintet-Section Dielectric Triple-Mode Resonator BPFs With Flexible Transmission Zeros

    Article • IEEE Microwave and Wireless Technology Letters, January 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  54. A Single-Fed Dual-Band Orthogonal Circularly Polarized Filtering Antenna for 5G-Enabled IoV Applications

    Article • IEEE Internet of Things Journal, January 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  55. Spoof Surface Plasmon Polariton-Based E -Plane Waveguide Bandpass Filters Using Equivalent Circuit Method

    Article • IEEE Transactions on Microwave Theory and Techniques, January 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  56. Dual-Band Filtering Power Dividers With Arbitrary Power Division Ratio and Wide Harmonic Suppression

    Article • IEEE Transactions on Microwave Theory and Techniques, January 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  57. Response Time Improvement of Liquid Crystal Reflectarray Using Partition Wall Structure

    Article • IEEE Antennas and Wireless Propagation Letters, January 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  58. Reflectionless filtering power divider with wide passband using LTCC technology

    Article • Journal of Physics D Applied Physics, December 2024, Institute of Physics Publishing

    Dr Kai-Da Xu

  59. 3D-printed OAM beam generator with an enhanced out-of-band gain filtering characteristic

    Article • Optics Express, December 2024, Optical Society of America (OSA)

    Dr Kai-Da Xu

  60. Wideband Circularly Polarized Substrate Integrated Dielectric Resonator Antenna Array for 5G Millimeter-Wave Applications

    Article • IEEE Antennas and Wireless Propagation Letters, December 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  61. Low-Altitude UAV Detection Based on Vehicle-Mounted Wideband Programmable Metasurface

    Article • IEEE Transactions on Microwave Theory and Techniques, December 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  62. Microstrip Valley Photonic Topological Waveguide

    Article • IEEE Photonics Technology Letters, November 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  63. A Method of Dual-Bias Voltage Supply for Reducing Reflection Loss in Reconfigurable Intelligent Surfaces of Liquid Crystal

    Article • IEEE Antennas and Wireless Propagation Letters, November 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  64. Dual-Band Polarization-Independent Terahertz Absorber Based on F-Shaped Multimode Structure

    Article • IEEE Photonics Technology Letters, October 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  65. A dual-band bandpass filter based on hybrid ESPPs-SIW structure with ultra-wide upper stopband suppression

    Article • Physica Scripta, September 2024, Institute of Physics Publishing

    Dr Kai-Da Xu

  66. An Ultrawideband Quasi-Reflectionless Filtering Power Divider Based on LTCC Technology

    Article • IEEE Transactions on Plasma Science, September 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  67. Single-/Dual-Band Linear Polarization Converter With Independently Controllable Passband and High Selectivity

    Article • IEEE Antennas and Wireless Propagation Letters, September 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  68. An Optimization Method for Coupled-Line Bandpass Filters Using Transformer-Based Estimator and Multilayer Perceptron

    Article • IEEE Transactions on Circuits & Systems II Express Briefs, September 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  69. Ka-Band Waveguide Bandpass Filters Using Double-Layer Grounded Spoof Surface Plasmon Polaritons

    Article • IEEE Transactions on Microwave Theory and Techniques, September 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  70. Wideband optically transparent absorber based on multilayer ITO films with high absorption rate

    Article • Optics Express, August 2024, Optical Society of America (OSA)

    Dr Kai-Da Xu

  71. Highly Integrated Reconfigurable Shared-Aperture EM Surface With Multifunctionality in Transmission, Reflection, and Absorption

    Article • IEEE Transactions on Antennas and Propagation, August 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  72. WR-4 Band Wideband Waveguide Diplexer Based on Spoof Surface Plasmon Polaritons and Its Application in Terahertz Communications

    Article • IEEE Transactions on Microwave Theory and Techniques, August 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  73. SIW Cavity Mode Analysis and Control Techniques for Compact Wide-Stopband Filters Design

    Article • IEEE Transactions on Circuits & Systems II Express Briefs, July 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  74. Terahertz dual-band bandpass filter based on spoof surface plasmon polaritons with wide upper stopband suppression

    Article • Optics Express, June 2024, Optical Society of America (OSA)

    Dr Kai-Da Xu

  75. A Butler Matrix-Based Multibeam W-Band Slot Antenna Array Fabricated by Metal Additive Manufacturing Technology

    Article • IEEE Transactions on Antennas and Propagation, June 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  76. Accurate Dispersion Extracting and Designing Method for Spoof Surface Plasmon Polaritons Leaky-Wave Antennas Based on Short and Open Calibration

    Article • IEEE Transactions on Circuits & Systems II Express Briefs, June 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  77. Frequency-Controlled Wide-Angle Scanning Antenna Based on Sinusoidally Modulated Waveguide Using Stereo Lithography Appearance Technology

    Article • IEEE Antennas and Wireless Propagation Letters, June 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  78. Millimeter-Wave Dual-Wideband Filtering Power Divider Using Groove Gap Waveguide and Spoof Surface Plasmon Polariton

    Article • IEEE Transactions on Components Packaging and Manufacturing Technology, June 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  79. Optimal design of broadband linear-to-circular polarization conversion metasurface

    Article • Materials & Design, June 2024, Elsevier

    Dr Kai-Da Xu

  80. W-Band E-Plane Waveguide Bandpass Filters Using Spoof Surface Plasmon Polaritons and Grounded Lines

    Article • IEEE Transactions on Microwave Theory and Techniques, June 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  81. Synthesis and Design of a Dual-Band Diplexer Based on Coaxial Monoblock Dielectric Resonators for 5G Base Stations

    Article • IEEE Transactions on Microwave Theory and Techniques, June 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  82. A Flexible Terahertz Metamaterial Sensor for Pesticide Sensing and Detection

    Article • ACS Applied Materials & Interfaces, May 2024, American Chemical Society (ACS)

    Dr Kai-Da Xu

  83. A super-compact wideband bandpass filter using capacitor-loaded coupled lines

    Article • Frequenz, May 2024, De Gruyter

    Dr Kai-Da Xu

  84. A W-Band Chebyshev Waveguide Bandpass Filter with Wide Stopband Performance

    Article • Electronics, May 2024, MDPI AG

    Dr Kai-Da Xu

  85. Low mutual-coupling MIMO antenna using dielectric resonators

    Article • AEU - International Journal of Electronics and Communications, May 2024, Elsevier

    Dr Kai-Da Xu

  86. Low‐profile frequency selective surface with quasi‐elliptical bandpass response using antenna‐filter‐antenna approach

    Article • Microwave and Optical Technology Letters, May 2024, Wiley

    Dr Kai-Da Xu

  87. Self-Packaged mm-Wave Broadband Air-Filled SIW Filtering Power Divider With Sharp Roll-Off Skirt and High In-Band Isolation

    Article • IEEE Microwave and Wireless Technology Letters, May 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  88. A Dual-Band Polarization-Rotation Transmitarray With Independent Phase Control and Frequency Selectivity Characteristics

    Article • IEEE Antennas and Wireless Propagation Letters, April 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  89. A compact 60‐GHz on‐chip bandpass filter in GaAs technology

    Article • Electronics Letters, April 2024, the Institution of Engineering and Technology (the IET)

    Dr Kai-Da Xu

  90. Dual-Polarization 1-bit/Quasi-2-bit Low-Cost Programmable Metasurface With Merged Control Circuit

    Article • IEEE Transactions on Antennas and Propagation, April 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  91. Femtosecond laser treatment of SWNT onto metal electrodes and its effect on carbon nanotube field effect transistor

    Article • Optics & Laser Technology, April 2024, Elsevier

    Dr Kai-Da Xu

  92. Voltage-Controlled Tunable Filtering Attenuator Using PIN Diodes

    Article • IEEE Transactions on Circuits & Systems II Express Briefs, February 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  93. A 7–13 GHz Low Noise Amplifier MMIC With Ultralow Noise Figure

    Article • IEEE Microwave and Wireless Technology Letters, January 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  94. A Wideband Filtering Switch: Its Synthesis and Design

    Article • IEEE Transactions on Microwave Theory and Techniques, January 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  95. Groove Gap Waveguide Bandpass Filter Based on Spoof Surface Plasmon Polariton for Ka-Band Applications

    Article • IEEE Transactions on Microwave Theory and Techniques, January 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  96. X-band frequency selective surface with low loss and angular stability

    Article • AEU - International Journal of Electronics and Communications, January 2024, Elsevier

    Dr Kai-Da Xu

  97. Near-Field Coupling Analysis of Flexible Printed Circuit Boards

    Article • IEEE Transactions on Signal and Power Integrity, January 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  98. A Low-Cost Wideband Reflectarray Antenna Based on Nonradiative Dielectric Waveguide

    Article • IEEE Antennas and Wireless Propagation Letters, December 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  99. A 10–18 GHz Current-Reused LNA MMIC With Feedback and Gain-Compensation Techniques

    Article • IEEE Microwave and Wireless Technology Letters, December 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  100. Design of Wide-Stopband and Dual-Band Filtering Crossovers Based on Mixed Substrate Integrated Waveguide Cavities

    Article • IEEE Transactions on Microwave Theory and Techniques, December 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  101. Switchable Dual-Channel Metasurface for Beam Directional Deflection Using Ge2Sb2Te5

    Article • IEEE Photonics Technology Letters, December 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  102. W-Band Waveguide Filters and Diplexer Using Metal Stripline Resonators

    Article • IEEE Transactions on Components Packaging and Manufacturing Technology, December 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  103. Synthesis of Large Ultra-wideband Sparse Circular Planar Arrays Based on Rotationally Symmetric Structure

    Article • Electronics, November 2023, MDPI AG

    Dr Kai-Da Xu

  104. A W‐band long‐slot array antenna with two‐dimensional beam‐scanning capability

    Article • IET Microwaves Antennas & Propagation, November 2023, the Institution of Engineering and Technology (the IET)

    Dr Kai-Da Xu

  105. Compact wideband filter with wide stopband using transition-free spoof surface plasmon polaritons

    Article • Journal of Physics D Applied Physics, October 2023, Institute of Physics Publishing

    Dr Kai-Da Xu

  106. Miniaturized Dual-/Tri-/Quad-Band Bandpass Filters Using Perturbed Multimode SIW Cavity

    Article • IEEE Transactions on Components Packaging and Manufacturing Technology, October 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  107. W-Band Bandpass Filter Using Spoof Surface Plasmon Polaritons and Double-Grating Rectangular Waveguide

    Article • IEEE Microwave and Wireless Technology Letters, October 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  108. A Compact Dual-Band Wearable Button Antenna Design for WBAN Applications

    Article • IEEE Transactions on Antennas and Propagation, October 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  109. Plasmonic skyrmions with bound states in the continuum

    Article • APL Photonics, September 2023, American Institute of Physics

    Dr Kai-Da Xu

  110. Millimeter-Wave Bandpass Filters Using On-Chip Dual-Mode Resonators in 0.13-μm SiGe BiCMOS Technology

    Article • IEEE Transactions on Microwave Theory and Techniques, August 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  111. Design of Low-Cost Single-Layer 2-Bit Reflective Programmable Metasurface Based on Folded Ground

    Article • IEEE Transactions on Microwave Theory and Techniques, August 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  112. Extremely Wideband Metamaterial Absorber Using Spatial Lossy Transmission Lines and Resistively Loaded High Impedance Surface

    Article • IEEE Transactions on Microwave Theory and Techniques, August 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  113. Millimeter-Wave On-Chip Bandpass Filter Using Complementary-Broadside-Coupled Structure

    Article • IEEE Transactions on Circuits & Systems II Express Briefs, August 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  114. A Fast Electrothermal Response Analysis Method for Interconnect Circuits With Multiexcitations in Multilayer Packages

    Article • IEEE Transactions on Components Packaging and Manufacturing Technology, July 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  115. Compact Tunable Broadband Filtering Attenuator Based on Variable Resistors

    Article • IEEE Microwave and Wireless Technology Letters, July 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  116. Millimeter-Wave Bandpass Filter Based on Spiral Resonators and DGS Using SiGe BiCMOS Technology

    Article • IEEE Transactions on Circuits & Systems II Express Briefs, July 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  117. Wideband Bandpass Filters Based on Eighth-Mode Substrate Integrated Waveguide and Microstrip Resonators

    Article • IEEE Transactions on Circuits & Systems II Express Briefs, July 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  118. Virtual antenna array for reduced energy per bit transmission at Sub-5 GHz mobile wireless communication systems

    Article • Alexandria Engineering Journal, May 2023, Elsevier

    Dr Kai-Da Xu, Prof. Francisco Falcone

  119. Wide-Angle Scanning Leaky-Wave Antenna Array Based on Double-Layer Double-Row Spoof Surface Plasmon Polariton

    Article • IEEE Antennas and Wireless Propagation Letters, May 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  120. Compact dual-band narrowband bandpass filter with small frequency ratio

    Article • Frequenz, April 2023, De Gruyter

    Dr Kai-Da Xu

  121. Metasurface Antenna With Cocircularly Polarized Radiation Characteristics for Wideband Monostatic Simultaneous Transmit and Receive Applications

    Article • IEEE Transactions on Antennas and Propagation, April 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  122. A Systematic Method for Efficient Wireless Powering to Implantable Biomedical Devices

    Article • IEEE Transactions on Antennas and Propagation, March 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  123. Dual-band terahertz absorber based on square ring metamaterial structure

    Article • Optics Express, February 2023, Optical Society of America (OSA)

    Dr Kai-Da Xu

  124. A Single-Layer Low-Profile Dual-Wideband Monopolar Patch Antenna With Shorting Vias and Parasitic Annular Sectors

    Article • IEEE Antennas and Wireless Propagation Letters, February 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  125. Mutual coupling reduction for monopole MIMO antenna using l-shaped stubs, defective ground and chip resistors

    Article • AEU - International Journal of Electronics and Communications, February 2023, Elsevier

    Dr Kai-Da Xu

  126. Spoof surface plasmon polaritons based on-chip sensor for dielectric detection

    Article • Optics Express, January 2023, Optical Society of America (OSA)

    Dr Kai-Da Xu

  127. A high Q-factor dual-band terahertz metamaterial absorber and its sensing characteristics

    Article • Nanoscale, January 2023, Royal Society of Chemistry

    Dr Kai-Da Xu

  128. A Frequency-Controlled Wide-Angle Scanning Antenna Based on Spoof Surface Plasmon Polariton

    Article • IEEE Photonics Technology Letters, December 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  129. A Wideband Reflectarray Based on Single-Layer Magneto-Electric Dipole Elements With 1-bit Switching Mode

    Article • IEEE Transactions on Antennas and Propagation, December 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  130. Dual-Band Bandpass Filter With Independently Tunable Attenuation Characteristics Using Graphene Nanoplates

    Article • IEEE Transactions on Plasma Science, December 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  131. Three-Dimensional Printed, Dual-Band, Dual-Circularly Polarized Antenna Array Using Gap Waveguide Technology

    Article • Applied Sciences, October 2022, MDPI AG

    Dr Kai-Da Xu

  132. Millimeter-Wave E-Plane Waveguide Bandpass Filters Based on Spoof Surface Plasmon Polaritons

    Article • IEEE Transactions on Microwave Theory and Techniques, October 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  133. Compact Quad-Mode BPF Based on Half-Mode Short-Circuited Semicircular Patch Resonator

    Article • Electronics, September 2022, MDPI AG

    Dr Kai-Da Xu

  134. Bandpass filters using grounded stub-loaded microstrip periodic structure for suppression of modes

    Article • Journal of Physics D Applied Physics, August 2022, Institute of Physics Publishing

    Dr Kai-Da Xu

  135. Varactor–Graphene-Based Bandpass Filter With Independently Tunable Characteristics of Frequency and Amplitude

    Article • IEEE Transactions on Components Packaging and Manufacturing Technology, August 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  136. Interfacial Behavior and Atomic Structures of Femtosecond Laser Self-Limiting Covalent Joining Carbon Nanotubes

    Article • The Journal of Physical Chemistry C, July 2022, American Chemical Society (ACS)

    Dr Kai-Da Xu

  137. Graphene‐based tunable terahertz electromagnetically induced transparency using metamaterial structure

    Article • Microwave and Optical Technology Letters, July 2022, Wiley

    Dr Kai-Da Xu

  138. Efficiency-Enhanced Wireless Power Transfer Based on Multiple Coupling Paths

    Article • IEEE Microwave and Wireless Components Letters, May 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  139. Molecular Dynamics Simulation on Wetting of Silver Nanosolder on a Diamond Surface

    Article • The Journal of Physical Chemistry C, April 2022, American Chemical Society (ACS)

    Dr Kai-Da Xu

  140. Compact switchable filter with three state modes using simple microstrip structure

    Article • Microwave and Optical Technology Letters, April 2022, Wiley

    Dr Kai-Da Xu

  141. 60-GHz third-order on-chip bandpass filter using GaAs pHEMT technology

    Article • Semiconductor Science and Technology, March 2022, Institute of Physics Publishing

    Dr Kai-Da Xu

  142. Compact W-band E-plane Waveguide Filter with High Selectivity

    Article • Journal of Infrared Millimeter and Terahertz Waves, March 2022, Springer Science + Business Media

    Dr Kai-Da Xu

  143. Spoof surface plasmon polariton developed in a rectangular waveguide with a controllable band-pass feature for millimeter-wave applications

    Article • Applied Physics Express, February 2022, Institute of Physics Publishing

    Dr Kai-Da Xu

  144. Dual-Polarized Duplex Base-Station Antenna With a Duplexer-Integrated Balun

    Article • IEEE Antennas and Wireless Propagation Letters, February 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  145. Terahertz Long-Distance Propagation Loss in the Air

    Article • January 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  146. Switchable and tunable bifunctional THz metamaterial absorber

    Article • Journal of the Optical Society of America B, January 2022, Optical Society of America (OSA)

    Dr Kai-Da Xu

  147. Novel Concentric Hexagonal-Shaped RFID Tag Antenna With T-Shaped Stub Matching

    Article • IEEE Journal of Radio Frequency Identification, January 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Francisco Falcone, Dr Kai-Da Xu

  148. A Compact 4×4 Filtering Microstrip Patch Antenna Array With Dolph-Chebyshev Power Distribution

    Article • IEEE Open Journal of Antennas and Propagation, January 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  149. A Pattern-Reversal Wideband Antenna Integrating Metal Rings, Diodes-Loaded Stubs and Defective Ground

    Article • IEEE Open Journal of Antennas and Propagation, January 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  150. Bandpass Filters Using Stepped Coupled Lines With Super Wide Stopbands

    Article • IEEE Journal of Radio Frequency Identification, January 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  151. Compact Millimeter-Wave On-Chip Dual-Band Bandpass Filter in 0.15-μm GaAs Technology

    Article • IEEE Journal of the Electron Devices Society, January 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  152. Quasi-Reflectionless Filters Using Simple Coupled Line and T-Shaped Microstrip Structures

    Article • IEEE Journal of Radio Frequency Identification, January 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  153. Nanofabrication Mechanism of Λ/20 Features Achieved by Coupling Field Tip Enhancement Induced with Nanosecond Laser Irradiating Afm Probe Tip

    Article • January 2022, Elsevier

    Dr Kai-Da Xu

  154. Half-mode substrate integrated plasmonic waveguide for filter and diplexer designs

    Article • Journal of Physics D Applied Physics, December 2021, Institute of Physics Publishing

    Dr Kai-Da Xu

  155. Compact Spoof Surface Plasmon Polariton Waveguides With Simple Configurations and Good Performance

    Article • IEEE Transactions on Plasma Science, December 2021, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  156. W-Band E-Plane Waveguide Bandpass Filter Based on Meander Ring Resonator

    Article • IEEE Microwave and Wireless Components Letters, December 2021, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  157. 60-GHz Half-Mode Substrate-Integrated Waveguide Bandpass Filter in 0.15-μm GaAs Technology

    Article • Frontiers in Physics, November 2021, Frontiers

    Dr Kai-Da Xu

  158. Dynamically switchable terahertz absorber based on a hybrid metamaterial with vanadium dioxide and graphene

    Article • Journal of the Optical Society of America B, October 2021, Optical Society of America (OSA)

    Dr Kai-Da Xu

  159. Spoof Surface Plasmon Polariton Waveguide With Switchable Notched Band

    Article • IEEE Photonics Technology Letters, October 2021, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  160. Reconfigurable bandpass filter with constant absolute bandwidth based on neural network

    Article • International Journal of RF and Microwave Computer-Aided Engineering, October 2021, Wiley

    Dr Kai-Da Xu

  161. Substrate integrated waveguide based class‐F power amplifier

    Article • Electronics Letters, October 2021, the Institution of Engineering and Technology (the IET)

    Dr Kai-Da Xu

  162. Asymmetric Doherty Power Amplifier with Input Phase/Power Adjustment and Envelope Tracking

    Article • Electronics, September 2021, MDPI AG

    Dr Kai-Da Xu

  163. High-Selectivity Bandpass Filter Based on Two Merged Ring Resonators

    Article • Radioengineering, September 2021, Brno University of Technology

    Dr Kai-Da Xu

  164. Bandpass Filter Based on Spoof Surface Plasmon Polaritons With a Switchable High-Selectivity Notch Band

    Article • Frontiers in Physics, August 2021, Frontiers

    Dr Kai-Da Xu

  165. Spoof Surface Plasmon Polaritons Developed from SIW Using Ring Slots and Vias

    Article • Electronics, August 2021, MDPI AG

    Dr Kai-Da Xu

  166. 60-GHz Compact Dual-Mode On-Chip Bandpass Filter Using GaAs Technology

    Article • IEEE Electron Device Letters, August 2021, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  167. Fabrication of PCD Skiving Cutter by UV Nanosecond Laser

    Article • Materials, July 2021, MDPI AG

    Dr Kai-Da Xu

  168. Design of Wideband Bandpass Filter Based on Corrugated Disk Resonator with Multiple Resonant Modes

    Article • Materials, May 2021, MDPI AG

    Dr Kai-Da Xu

  169. Multifunctional Switchable Filter Using Coupled-Line Structure

    Article • IEEE Microwave and Wireless Components Letters, May 2021, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  170. Triple‐mode bandpass filter based on short‐circuited patch resonator

    Article • Electronics Letters, April 2021, the Institution of Engineering and Technology (the IET)

    Dr Kai-Da Xu

  171. High-Order Mode Application of Spoof Surface Plasmon Polaritons in Bandpass Filter Design

    Article • IEEE Photonics Technology Letters, April 2021, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  172. SPICE Behaviors of Double Memristor Circuits Using Cosine Window Function

    Article • Frontiers in Physics, March 2021, Frontiers

    Dr Kai-Da Xu

  173. On-Chip GaAs-Based Spoof Surface Plasmon Polaritons at Millimeter-Wave Regime

    Article • IEEE Photonics Technology Letters, March 2021, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  174. High-Order Mode of Spoof Surface Plasmon Polaritons and Its Application in Bandpass Filters

    Article • IEEE Transactions on Plasma Science, January 2021, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  175. Synthesis of Multibeam Sparse Circular-Arc Antenna Arrays Employing Refined Extended Alternating Convex Optimization

    Article • IEEE Transactions on Antennas and Propagation, January 2021, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  176. Compact Octa-band Bandpass Filter based on Controllable Transmission Zeros with Wide Upper Stopband

    Article • The Applied Computational Electromagnetics Society Journal (ACES), January 2021, River Publishers

    Dr Kai-Da Xu

  177. Spoof Surface Plasmon Polaritons Developed From Coplanar Waveguides in Microwave Frequencies

    Article • IEEE Photonics Technology Letters, November 2020, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  178. A Broadband On-Chip Bandpass Filter Using Shunt Dual-Layer Meander-Line Resonators

    Article • IEEE Electron Device Letters, November 2020, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  179. Dual‐band bandpass filter using two simple coupled microstrip rings

    Article • Engineering Reports, September 2020, Wiley

    Dr Kai-Da Xu

  180. Multiband terahertz absorbers using T-shaped slot-patterned graphene and its complementary structure

    Article • Journal of the Optical Society of America B, September 2020, Optical Society of America (OSA)

    Dr Kai-Da Xu

  181. Bandpass filter using coupled‐line‐stub cascaded structure with high stopband rejection

    Article • Microwave and Optical Technology Letters, August 2020, Wiley

    Dr Kai-Da Xu

  182. SPICE Behaviors of Double Memristor Circuits Using Cosine Window Function

    Article • August 2020, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  183. Millimeter-Wave On-Chip Bandpass Filter Based on Spoof Surface Plasmon Polaritons

    Article • IEEE Electron Device Letters, August 2020, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  184. Polarization reconfigurable annular ring slot antenna design

    Article • AEU - International Journal of Electronics and Communications, August 2020, Elsevier

    Dr Kai-Da Xu

  185. Narrow‐band bandpass filter with very wide upper stopband

    Article • Microwave and Optical Technology Letters, June 2020, Wiley

    Dr Kai-Da Xu

  186. Compact dual-band bandpass filter using coupled lines and shorted stubs

    Article • Electronics Letters, April 2020, the Institution of Engineering and Technology (the IET)

    Dr Kai-Da Xu

  187. Coupled‐line band‐pass filter with T‐shaped structure for high frequency selectivity and stopband rejection

    Article • International Journal of RF and Microwave Computer-Aided Engineering, April 2020, Wiley

    Dr Kai-Da Xu

  188. Tunable multi-band terahertz absorber using a single-layer square graphene ring structure with T-shaped graphene strips

    Article • Optics Express, April 2020, Optical Society of America (OSA)

    Dr Kai-Da Xu

  189. Spoof Surface Plasmon Polaritons Based on Balanced Coplanar Stripline Waveguides

    Article • IEEE Photonics Technology Letters, January 2020, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  190. A Decoupling and Matching Network Design for Single- and Dual-Band Two-Element Antenna Arrays

    Article • IEEE Transactions on Microwave Theory and Techniques, January 2020, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  191. A Surface Integral Equation Formulation for Efficient Simulation of Finite-Sized Multilayered Parallel-Plate Structure

    Article • IEEE Transactions on Microwave Theory and Techniques, January 2020, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  192. Single-Ended and Balanced Bandpass Filters Using Multiple Pairs of Coupled Lines and Stepped-Impedance Stubs

    Article • IEEE Access, January 2020, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  193. Tunable and Anisotropic Dual-Band Metamaterial Absorber Using Elliptical Graphene-Black Phosphorus Pairs

    Article • Nanoscale Research Letters, November 2019, Springer Science + Business Media

    Dr Kai-Da Xu

  194. Investigation of multi-resonant and anisotropic plasmonic resonances in the stacked graphene-black phosphorus bilayers

    Article • Journal of Physics D Applied Physics, October 2019, Institute of Physics Publishing

    Dr Kai-Da Xu

  195. Tunable enhanced sensing of ferrite film using meander-shaped spoof surface plasmon polariton waveguide

    Article • Applied Physics Express, October 2019, Institute of Physics Publishing

    Dr Kai-Da Xu

  196. Synthesizing Uniform Amplitude Sparse Dipole Arrays With Shaped Patterns by Joint Optimization of Element Positions, Rotations and Phases

    Article • IEEE Transactions on Antennas and Propagation, September 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  197. Wilkinson filtering power divider using coupled lines and T‐shaped stub

    Article • Microwave and Optical Technology Letters, June 2019, Wiley

    Dr Kai-Da Xu

  198. Broadband Filtering Power Dividers Using Simple Three-Line Coupled Structures

    Article • IEEE Transactions on Components Packaging and Manufacturing Technology, June 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  199. Compact Bandstop Filters Using Coupled Lines and Open/Short Stubs with Multiple Transmission Poles

    Article • IET Microwaves Antennas & Propagation, April 2019, the Institution of Engineering and Technology (the IET)

    Dr Kai-Da Xu

  200. High-selectivity bandpass filter using six pairs of quarter-wavelength coupled lines

    Article • Electronics Letters, March 2019, the Institution of Engineering and Technology (the IET)

    Dr Kai-Da Xu

  201. Terahertz broadband spoof surface plasmon polaritons using high-order mode developed from ultra-compact split-ring grooves

    Article • Optics Express, February 2019, Optical Society of America (OSA)

    Dr Kai-Da Xu

  202. High-Selectivity Wideband Bandpass Filter Using Simple Coupled Lines With Multiple Transmission Poles and Zeros

    Article • IEEE Microwave and Wireless Components Letters, February 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  203. Anisotropic infrared plasmonic broadband absorber based on graphene-black phosphorus multilayers

    Article • Optics Express, January 2019, Optical Society of America (OSA)

    Dr Kai-Da Xu

  204. Erratum for: Compact Bandpass filters using multi‐stub loaded spiral short‐ended resonator

    Article • Microwave and Optical Technology Letters, January 2019, Wiley

    Dr Kai-Da Xu

  205. Compact narrow/wide band branch-line couplers with improved upper-stopband

    Article • AEU - International Journal of Electronics and Communications, January 2019, Elsevier

    Dr Kai-Da Xu

  206. Multilayer Balanced-to-Unbalanced Power Divider With Wideband Transmission Characteristic and Common-Mode Suppression

    Article • IEEE Transactions on Components Packaging and Manufacturing Technology, January 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  207. Low-Profile Filtering End-Fire Antenna Integrated With Compact Bandstop Filtering Element for High Selectivity

    Article • IEEE Access, January 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  208. Substrate Integrated Plasmonic Waveguide for Microwave Bandpass Filter Applications

    Article • IEEE Access, January 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  209. Synthesizing Unequally Spaced Pattern-Reconfigurable Linear Arrays With Minimum Interspacing Control

    Article • IEEE Access, January 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  210. Graphene-Based Plasmonic Tunable Dual-Band Bandstop Filter in the Far-Infrared Region

    Article • IEEE Photonics Journal, December 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  211. Microwave On-Chip Bandpass Filter Based on Hybrid Coupling Technique

    Article • IEEE Transactions on Electron Devices, December 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  212. Tunable broadband terahertz absorber based on multilayer graphene-sandwiched plasmonic structure

    Article • Optics Express, November 2018, Optical Society of America (OSA)

    Dr Kai-Da Xu

  213. Reducing the Number of Elements in the Synthesis of a Broadband Linear Array With Multiple Simultaneous Frequency-Invariant Beam Patterns

    Article • IEEE Transactions on Antennas and Propagation, November 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  214. High-selectivity single-ended and balanced bandpass filters using ring resonators and coupled lines loaded with multiple stubs

    Article • AEU - International Journal of Electronics and Communications, November 2018, Elsevier

    Dr Kai-Da Xu

  215. High-performance filtering power divider with multiple transmission zeros

    Article • Microwave and Optical Technology Letters, October 2018, Wiley

    Dr Kai-Da Xu

  216. Multiband bandpass filter design using E‐plane septa for waveguide application

    Article • Microwave and Optical Technology Letters, September 2018, Wiley

    Dr Kai-Da Xu

  217. Super High-Selectivity Fifth-Order Bandpass Filter with Twelve Transmission Zeros

    Article • Radioengineering, September 2018, Brno University of Technology

    Dr Kai-Da Xu

  218. Bandpass Filter Using Three Pairs of Coupled Lines With Multiple Transmission Zeros

    Article • IEEE Microwave and Wireless Components Letters, July 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  219. A Coplanar Waveguide Fed UWB Antenna using Embedded E-shaped Structure with WLAN Band-rejection

    Article • Frequenz, June 2018, De Gruyter

    Dr Kai-Da Xu

  220. Circularly polarized co-designed filtering annular slot antenna

    Article • AEU - International Journal of Electronics and Communications, June 2018, Elsevier

    Dr Kai-Da Xu

  221. Linearly Polarized Shaped Power Pattern Synthesis With Sidelobe and Cross-Polarization Control by Using Semidefinite Relaxation

    Article • IEEE Transactions on Antennas and Propagation, June 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  222. Design of filtering power divider with high frequency selectivity

    Article • Microwave and Optical Technology Letters, May 2018, Wiley

    Dr Kai-Da Xu

  223. Spoof plasmonic waveguide developed from coplanar stripline for strongly confined terahertz propagation and its application in microwave filters

    Article • Optics Express, April 2018, Optical Society of America (OSA)

    Dr Kai-Da Xu

  224. Synthesizing multiple-pattern sparse linear array with accurate sidelobe control by the extended reweighted L1-norm minimization

    Article • Electronics Letters, March 2018, the Institution of Engineering and Technology (the IET)

    Dr Kai-Da Xu

  225. Design of Triplexer Using E-Stub-Loaded Composite Right-/Left-Handed Resonators and Quasi-Lumped Impedance Matching Network

    Article • IEEE Access, January 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  226. Microstrip Patch Antennas With Multiple Parasitic Patches and Shorting Vias for Bandwidth Enhancement

    Article • IEEE Access, January 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  227. Novel Surface Plasmon Polariton Waveguides with Enhanced Field Confinement for Microwave-Frequency Ultra-Wideband Bandpass Filters

    Article • IEEE Access, January 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  228. Printed Quasi-Yagi Antennas Using Double Dipoles and Stub-Loaded Technique for Multi-Band and Broadband Applications

    Article • IEEE Access, January 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  229. Wideband Patch Antenna Using Multiple Parasitic Patches and Its Array Application With Mutual Coupling Reduction

    Article • IEEE Access, January 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  230. High selectivity seventh-order wideband bandpass filter using coupled lines and open/shorted stubs

    Article • Electronics Letters, December 2017, the Institution of Engineering and Technology (the IET)

    Dr Kai-Da Xu

  231. Substrate Integrated Waveguide Cavity-Backed Slot Array Antenna Using High-Order Radiation Modes for Dual-Band Applications in $K$ -Band

    Article • IEEE Transactions on Antennas and Propagation, September 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  232. Accurate simulation of thin dielectric sheet by higher order surface integral equation

    Article • Electromagnetics, August 2017, Taylor & Francis

    Dr Kai-Da Xu

  233. Pattern Synthesis of Unequally Spaced Linear Arrays Including Mutual Coupling Using Iterative FFT via Virtual Active Element Pattern Expansion

    Article • IEEE Transactions on Antennas and Propagation, August 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  234. Miniaturized Frequency Controllable Band-Stop Filter Using Coupled-Line Stub-Loaded Shorted SIR for Tri-Band Application

    Article • IEEE Microwave and Wireless Components Letters, July 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  235. A low phase noise oscillator using SIW combline resonator

    Article • June 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  236. Compact low-pass filters with deep and ultra-wide stopband using tri- and quad-mode resonators

    Article • IET Microwaves Antennas & Propagation, April 2017, the Institution of Engineering and Technology (the IET)

    Dr Qun Li, Dr Kai-Da Xu

  237. Compact Microstrip Triple-Mode Bandpass Filters Using Dual-Stub-Loaded Spiral Resonators

    Article • Radioengineering, April 2017, Brno University of Technology

    Dr Kai-Da Xu

  238. Compact diplexer using short stub-loaded composite right/left-handed resonators

    Article • Microwave and Optical Technology Letters, March 2017, Wiley

    Dr Kai-Da Xu, Jing Ai

  239. Broadband phase shifters using comprehensive compensation method

    Article • Microwave and Optical Technology Letters, February 2017, Wiley

    Dr Kai-Da Xu

  240. Effect of Phase Shifter Quantization Error on the Performance of Millimeter Wave Beam Steering

    Article • IEICE Transactions on Communications, January 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  241. A printed quasi-Yagi antenna with dual-stub-loaded parasitic strip director for bandwidth enhancement

    Article • Microwave and Optical Technology Letters, December 2016, Wiley

    Dr Kai-Da Xu

  242. Generalization of GA-FFT for synthesizing unequally spaced linear array shaped pattern including coupling effects

    Article • IET Microwaves Antennas & Propagation, December 2016, the Institution of Engineering and Technology (the IET)

    Dr Kai-Da Xu

  243. Electronically Reconfigurable Notch Filter for Cognitive Radios Application

    Article • Journal of Computational and Theoretical Nanoscience, October 2016, American Scientific Publishers

    Dr Kai-Da Xu

  244. Short- and Open-Stub Loaded Spiral Resonator and Its Application in Planar Microstrip Filters

    Article • IET Microwaves Antennas & Propagation, September 2016, the Institution of Engineering and Technology (the IET)

    Dr Kai-Da Xu, Jing Ai

  245. Simple Memristive SPICE Macro-Models and Reconfigurability in Filter and Antenna

    Article • Radioengineering, September 2016, Brno University of Technology

    Dr Kai-Da Xu

  246. Compact bandpass filters using multistub loaded spiral short‐ended resonator

    Article • Microwave and Optical Technology Letters, August 2016, Wiley

    Dr Kai-Da Xu

  247. Reactive impedance surface based multisystem satellite navigation antenna

    Article • Microwave and Optical Technology Letters, August 2016, Wiley

    Dr Kai-Da Xu

  248. Design of a high-selectivity quad-band bandpass filter based on λ/4 resonators with alternative J/K inverters

    Article • AEU - International Journal of Electronics and Communications, August 2016, Elsevier

    Dr Kai-Da Xu

  249. Miniaturised X-band balanced microwave limiter based on thin film hybrid integrated circuit technology

    Article • Electronics Letters, July 2016, the Institution of Engineering and Technology (the IET)

    Dr Kai-Da Xu, Jing Ai

  250. Dual high-selectivity band-notched UWB monopole antenna using simple dual-mode resonator and high-impedance lines

    Article • International Journal of Microwave and Wireless Technologies, July 2016, Cambridge University Press

    Dr Kai-Da Xu

  251. Ultrathin plasmonic frequency selective surface with subwavelength hole arrays

    Article • Microwave and Optical Technology Letters, June 2016, Wiley

    Dr Kai-Da Xu

  252. Compact full Ka-band waveguide directional coupler based on large aperture array

    Article • Electronics Letters, May 2016, the Institution of Engineering and Technology (the IET)

    Dr Kai-Da Xu

  253. Miniaturized Quint-Band Bandpass Filter Based on Multi-Mode Resonator and Resonators With Mixed Electric and Magnetic Coupling

    Article • IEEE Microwave and Wireless Components Letters, May 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  254. Compact sext-band bandpass filter based on single multimode resonator with high band-to-band isolations

    Article • Electronics Letters, April 2016, the Institution of Engineering and Technology (the IET)

    Dr Kai-Da Xu

  255. Ultra-Wideband Power Divider with a Controllable Notched Band

    Article • Electromagnetics, April 2016, Taylor & Francis

    Dr Kai-Da Xu

  256. Planar microstrip tri-mode bandpass filter using center-stub-loaded spiral resonator

    Article • March 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  257. Compact microstrip quad-band bandpass filter using stub-loaded SIRs

    Article • December 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  258. Split-type quad-band bandpass filter with quarter-wavelength resonators

    Article • December 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  259. Aspheric dielectric lens antenna for millimeter-wave imaging system

    Article • December 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  260. A switchable dual-band monopole antenna using PIN diode

    Article • December 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  261. A wideband antenna with two controllable notched bands

    Article • December 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  262. A compact stub-loaded composite right/left-handed resonator and its application in bandpass filters

    Article • Microwave and Optical Technology Letters, June 2015, Wiley

    Dr Kai-Da Xu

  263. Microstrip dual-mode bandpass filter design using pie-section truncated semi-circle and quarter-circle resonators

    Article • IET Microwaves Antennas & Propagation, February 2015, the Institution of Engineering and Technology (the IET)

    Dr Kai-Da Xu

  264. Design of a Stub-Loaded Ring-Resonator Slot for Antenna Applications

    Article • IEEE Transactions on Antennas and Propagation, February 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  265. MICROSTRIP TRI-MODE BANDPASS FILTERS USING MODIFIED RING RESONATORS

    Article • Progress In Electromagnetics Research C, January 2015, EMW Publishing

    Dr Kai-Da Xu

  266. Miniaturized Close Dual-Band Bandpass Filter Based on Short Stub-Loaded Stepped-Impedance Resonators

    Article • Electromagnetics, December 2014, Taylor & Francis

    Dr Kai-Da Xu

  267. Compact dual-wideband bandpass filter with good selectivity using side-coupledλ/4 shorted SIR

    Article • Journal of Electromagnetic Waves and Applications, November 2014, Taylor & Francis

    Dr Kai-Da Xu

  268. Miniaturized notch-band UWB bandpass filters using interdigital-coupled feed-line structure

    Article • Microwave and Optical Technology Letters, July 2014, Wiley

    Dr Kai-Da Xu

  269. Planar interdigital-coupled UWB bandpass filter with a notched band

    Article • July 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  270. Compact planar antenna for triple frequency band operation

    Article • July 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  271. Compact ultra-wideband bandpass filter using quad-T-stub-loaded ring structure

    Article • Microwave and Optical Technology Letters, June 2014, Wiley

    Dr Kai-Da Xu

  272. Two Memristor SPICE Models and Their Applications in Microwave Devices

    Article • IEEE Transactions on Nanotechnology, May 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  273. Planar dual- and tri-band bandpass filters using single improved ring resonator and simple feed scheme

    Article • Microwave and Optical Technology Letters, January 2014, Wiley

    Dr Kai-Da Xu

  274. Nano-scale memristor SPICE implementation using ideal operational amplifier model

    Article • August 2013, SPIE

    Dr Kai-Da Xu

  275. SPICE model of memristor and its application

    Article • August 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  276. Microstrip multi-band bandpass filters using a single improved ring resonator

    Article • July 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  277. NOVEL DESIGN OF A COMPACT TRIPLE-BAND BANDPASS FILTER USING SHORT STUB-LOADED SIRS AND EMBEDDED SIRS STRUCTURE

    Article • Progress In Electromagnetics Research, January 2013, EMW Publishing

    Dr Kai-Da Xu

  278. Novel circular dual-mode filter with both capacitive and inductive source–load coupling for multiple transmission zeros

    Article • Journal of Electromagnetic Waves and Applications, July 2012, Taylor & Francis

    Dr Kai-Da Xu

  279. A broad W-band detector utilizing zero-bias direct detection circuitry

    Article • October 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kai-Da Xu

  280. Miniaturized Dual-Band Bandpass Filter using Short Stub-Loaded Dual-Mode Resonators

    Article • Journal of Electromagnetic Waves and Applications, January 2011, Taylor & Francis

    Dr Kai-Da Xu