All Stories

  1. A Surrogate‐Based Adaptive Sampling Approach for Electromagnetic Problems

    Article • International Journal of Numerical Modelling Electronic Networks Devices and Fields, September 2025, Wiley

    Dr Theodoros T. Zygiridis

  2. Adaptive Polynomial-Chaos Algorithm with Dual-Criterion Sampling for Uncertainty-Quantification Problems

    Article • IEEE Transactions on Magnetics, January 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  3. Far-field Pattern Evaluation for Magnetically-biased Graphene Resonators via Quasi-normal Modes

    Article • IEEE Transactions on Magnetics, January 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  4. Effective Finite-Difference Modeling of Graphene Micro-Resonators for the Accurate Natural Frequency Extraction

    Article • IEEE Transactions on Magnetics, March 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  5. Sensitivity Analysis of Metamaterial-Inspired SIW Focusing on Resonator Misalignment

    Article • IEEE Access, January 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  6. Efficient Electric Field Evaluation of a Point Source near the Infant Torso

    Article • IEEE Transactions on Magnetics, January 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  7. Optimum Parameter Selection for Accurate FDTD Simulations in Dispersive Media

    Article • IEEE Transactions on Magnetics, January 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  8. Efficient Recursive Convolution Schemes for the Accurate FDTD Modeling of Graphene Interband Contribution via Complex Conjugate Pairs

    Article • IEEE Transactions on Magnetics, May 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  9. Mode Propagation Analysis of Magnetically Biased Graphene Microstrips via an Efficient Finite-Difference Scheme

    Article • IEEE Transactions on Magnetics, September 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  10. An Anisotropic Sparse Adaptive Polynomial Chaos Method for the Uncertainty Quantification of Resonant Gratings-Performance

    Article • Journal of Lightwave Technology, June 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  11. Error-optimized finite-difference modeling of wave propagation problems with Lorentz material dispersion

    Article • Journal of Computational Physics, March 2022, Elsevier

    Dr Theodoros T. Zygiridis

  12. Accurate Time-Domain Modeling of Arbitrarily Shaped Graphene Layers Utilizing Unstructured Triangular Grids

    Article • Axioms, January 2022, MDPI AG

    Dr Theodoros T. Zygiridis

  13. A Consistent Scheme for the Precise FDTD Modeling of the Graphene Interband Contribution

    Article • IEEE Transactions on Magnetics, June 2021, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  14. Radiation Efficiency Enhancement of Graphene Plasmonic Devices Using Matching Circuits

    Article • Technologies, January 2021, MDPI AG

    Dr Theodoros T. Zygiridis

  15. A Reduced-Basis Polynomial-Chaos Approach with a Multi-parametric Truncation Scheme for Problems with Uncertainties

    Article • October 2020, Springer Science + Business Media

    Dr Theodoros T. Zygiridis

  16. Homogenization of 3D metamaterial particle arrays for oblique propagation via a point-dipole analysis

    Article • The European Physical Journal Applied Physics, August 2020, EDP Sciences

    Dr Theodoros T. Zygiridis

  17. A Stochastic Finite-Difference Time-Domain (FDTD) Method for Assessing Material and Geometric Uncertainties in Rectangular Objects

    Article • Technologies, January 2020, MDPI AG

    Dr Theodoros T. Zygiridis

  18. Modeling the Third-Order Electrodynamic Response of Graphene via an Efficient Finite-Difference Time-Domain Scheme

    Article • IEEE Transactions on Magnetics, January 2020, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  19. Sparse Polynomial-Chaos Models for Stochastic Problems with Filtering Structures

    Article • Advanced Electromagnetics, December 2019, Advanced Electromagnetics

    Dr Theodoros T. Zygiridis

  20. Eigenmode Solution for TE-Wave Propagation Through Anisotropic Metamaterial Particle 3-D Arrays via Dipole Approximation

    Article • IEEE Transactions on Magnetics, December 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  21. Regression-Based Stochastic Study of Electromagnetic Fields Due to Lightning Strikes

    Article • IEEE Transactions on Electromagnetic Compatibility, October 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  22. Uncertainty Study of Periodic-Grating Wideband Filters With Sparse Polynomial-Chaos Expansions

    Article • IEEE Photonics Technology Letters, September 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  23. Combining Standard with Optimized Split-Step FDTD Methods for the Study of Graphene Configurations

    Article • IET Science Measurement & Technology, July 2019, the Institution of Engineering and Technology (the IET)

    Mr Stamatis Amanatiadis, Dr Theodoros T. Zygiridis

  24. A Stochastic FDTD Method for Rectangular Objects with Geometric Uncertainties

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

    Dr Theodoros T. Zygiridis

  25. Efficient Uncertainty Assessment in EM Problems via Dimensionality Reduction of Polynomial-Chaos Expansions

    Article • Technologies, April 2019, MDPI AG

    Dr Theodoros T. Zygiridis

  26. Intrusive polynomial-chaos approach for stochastic problems with axial symmetry

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

    Professor THEODOROS D. TSIBOUKIS, Dr Theodoros T. Zygiridis

  27. Dimensionality Reduction of the Polynomial Chaos Technique Based on the Method of Moments

    Article • IEEE Antennas and Wireless Propagation Letters, December 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  28. Efficient stochastic EM studies via dimensionality reduction of polynomial-chaos expansions

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

    Dr Theodoros T. Zygiridis

  29. Performance analysis of waveguide-mode resonant optical filters with stochastic design parameters

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

    Dr Theodoros T. Zygiridis

  30. An unconditionally stable technique for uncertainty assessment in random media based on the ADI scheme

    Article • Journal of Electromagnetic Waves and Applications, December 2017, Taylor & Francis

    Dr Theodoros T. Zygiridis

  31. Rigorous time-domain analysis of statistically oriented graphene sheet fluctuations

    Article • COMPEL The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, September 2017, Emerald

    Dr Theodoros T. Zygiridis

  32. Stochastic LOD-FDTD method for two-dimensional electromagnetic uncertainty problems

    Article • COMPEL The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, September 2017, Emerald

    Dr Theodoros T. Zygiridis

  33. A Convolutional PML Scheme for the Efficient Modeling of Graphene Structures Through the ADE-FDTD Technique

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

    Dr Theodoros T. Zygiridis

  34. Improved Unconditionally Stable FDTD Method for 3-D Wave-Propagation Problems

    Article • IEEE Transactions on Microwave Theory and Techniques, June 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  35. Connectivity and coverage in machine-type communications

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

    Dr. Thomas D Lagkas, Dr Theodoros T. Zygiridis

  36. A stochastic FDTD approach for assessing random media uncertainties in polar coordinates

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

    Dr Theodoros T. Zygiridis

  37. Circular and square SRR exploitation as a means for wireless power transfer

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

    Dr Theodoros T. Zygiridis

  38. Efficient uncertainty analysis of waveguide-mode resonant optical filters

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

    Dr Theodoros T. Zygiridis

  39. Graphene sheet modeling with an efficient unconditionally-stable hybrid approach

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

    Dr Theodoros T. Zygiridis

  40. Performance improvement of various antennas using inclusions of split-ring resonators

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

    Dr Theodoros T. Zygiridis

  41. Efficient Krylov‐based 3D FVTD schemes with adaptive domain decomposition for graphene and nanostructured EMC components

    Article • International Journal of Numerical Modelling Electronic Networks Devices and Fields, April 2017, Wiley

    Dr Theodoros T. Zygiridis

  42. Investigation of uncertainty in lightning‐produced EM fields with a polynomial‐chaos FDTD approach

    Article • International Journal of Numerical Modelling Electronic Networks Devices and Fields, March 2017, Wiley

    Dr Theodoros T. Zygiridis

  43. A Short Review of FDTD-Based Methods for Uncertainty Quantification in Computational Electromagnetics

    Article • Mathematical Problems in Engineering, January 2017, Hindawi Publishing Corporation

    Dr Theodoros T. Zygiridis

  44. A convolutional PML scheme for the efficient modeling of graphene structures through the ADE-FDTD technique

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

    Dr Theodoros T. Zygiridis

  45. Polynomial-chaos time-domain method for uncertainty analysis of axially-symmetric structures

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

    Dr Theodoros T. Zygiridis

  46. DAMA: A data mining forecasting DBA scheme for XG-PONs

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

    Dr Theodoros T. Zygiridis

  47. Statistical analysis of microwave components through a 3-D stochastic-FDTD technique

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

    Dr Theodoros T. Zygiridis

  48. Unconditionally-stable time-domain approach for uncertainty assessment in transmission lines

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

    Dr Theodoros T. Zygiridis

  49. Development of optimized operators based on spherical-harmonic expansions for 3D FDTD schemes

    Article • International Journal of Applied Electromagnetics and Mechanics, April 2016, IOS Press

    Dr Theodoros T. Zygiridis

  50. Construction of 3D FDTD schemes with frequency-dependent operator coefficients

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

    Dr Theodoros T. Zygiridis

  51. Transmitted and reflected graphene surface waves due to substrate discontinuities

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

    Dr Theodoros T. Zygiridis

  52. Efficient Integration of High-Order Stencils Into the ADI-FDTD Method

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

    Dr Theodoros T. Zygiridis

  53. A Generalized Domain-Decomposition Stochastic FDTD Technique for Complex Nanomaterial and Graphene Structures

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

    Dr Theodoros T. Zygiridis

  54. GPU-Based Calculation of Lightning-Generated Electromagnetic Fields in 3-D Problems With Statistically Defined Uncertainties

    Article • IEEE Transactions on Electromagnetic Compatibility, December 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  55. Accelerated unconditionally stable FDTD scheme with modified operators

    Article • COMPEL The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, September 2015, Emerald

    Professor THEODOROS D. TSIBOUKIS, Dr Theodoros T. Zygiridis

  56. A curvilinear stochastic-FDTD algorithm for 3-D EMC problems with media uncertainties

    Article • COMPEL The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, September 2015, Emerald

    Professor THEODOROS D. TSIBOUKIS, Dr Theodoros T. Zygiridis

  57. A 3-D Stochastic FVTD Method Based on Reduced-Order Modeling for Statistically Random Media in Nano-Electromagnetic Applications

    Article • IEEE Transactions on Magnetics, March 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  58. Parallel LOD-FDTD Method With Error-Balancing Properties

    Article • IEEE Transactions on Magnetics, March 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  59. FDTD analysis of 3D lightning problems with material uncertainties on GPU architecture

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

    Dr Theodoros T. Zygiridis

  60. GPU-based three-dimensional calculation of lightning-generated electromagnetic fields

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

    Dr Theodoros T. Zygiridis

  61. Enhanced Analysis of Multiconductor Nanostructured Devices via a Compact Block FDTD/VFETD Method

    Article • IEEE Transactions on Magnetics, February 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  62. GPU-Accelerated Efficient Implementation of FDTD Methods With Optimum Time-Step Selection

    Article • IEEE Transactions on Magnetics, February 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  63. On the design of leapfrog integrators for optimized implementations of 3D FDTD models

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

    Dr Theodoros T. Zygiridis

  64. High-Order Error-Optimized FDTD Algorithm With GPU Implementation

    Article • IEEE Transactions on Magnetics, May 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  65. Design of Least-Squares Time Integrators for Reliable FDTD Simulations

    Article • IEEE Transactions on Magnetics, May 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  66. Efficient calculation of the lightning generated electric field above ground

    Article • September 2012, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  67. Fourth-order finite-difference time-domain method based on error-controlling concepts

    Article • International Journal of Numerical Modelling Electronic Networks Devices and Fields, February 2012, Wiley

    Dr Theodoros T. Zygiridis

  68. Optimum time-step size for 2D (2, 4) FDTD method

    Article • Electronics Letters, January 2011, the Institution of Engineering and Technology (the IET)

    Dr Theodoros T. Zygiridis

  69. Vehicle-to-vehicle communication system EMI characterization on automotive electronics

    Article • August 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  70. Two-Dimensional Time-Domain Algorithm With Adaptive Spectral Properties

    Article • IEEE Microwave and Wireless Components Letters, May 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  71. Error Estimation and Performance Control for the (2,4) FDTD Method in Lossy Spaces

    Article • IEEE Transactions on Magnetics, March 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  72. Treatment of Grid-Conforming Dielectric Interfaces in FDTD Methods

    Article • IEEE Transactions on Magnetics, March 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  73. Optimized (2,4) FDTD Method for Conducting Media

    Article • IEEE Transactions on Magnetics, June 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  74. Improved Finite-Difference Time-Domain Algorithm Based on Error Control for Lossy Materials

    Article • IEEE Transactions on Microwave Theory and Techniques, June 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  75. ASSESSMENT OF HUMAN HEAD EXPOSURE TO WIRELESS COMMUNICATION DEVICES: COMBINED ELECTROMAGNETIC AND THERMAL STUDIES FOR DIVERSE FREQUENCY BANDS

    Article • Progress In Electromagnetics Research B, January 2008, EMW Publishing

    Dr Theodoros T. Zygiridis

  76. Optimized three-dimensional FDTD discretizations of Maxwell’s equations on Cartesian grids

    Article • Journal of Computational Physics, October 2007, Elsevier

    Dr Theodoros T. Zygiridis

  77. Design of optimized FDTD schemes for the accurate solution of electromagnetic problems

    Article • IEEE Transactions on Magnetics, April 2006, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  78. Numerical modeling of an indoor wireless environment for the performance evaluation of WLAN systems

    Article • IEEE Transactions on Magnetics, April 2006, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  79. Development of higher order FDTD schemes with controllable dispersion error

    Article • IEEE Transactions on Antennas and Propagation, September 2005, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  80. Phase error reduction in general FDTD methods via optimum configuration of material parameters

    Article • Journal of Materials Processing Technology, April 2005, Elsevier

    Dr Theodoros T. Zygiridis

  81. Higher-order finite-difference schemes with reduced dispersion errors for accurate time-domain electromagnetic simulations

    Article • International Journal of Numerical Modelling Electronic Networks Devices and Fields, September 2004, Wiley

    Dr Theodoros T. Zygiridis

  82. Low-Dispersion Algorithms Based on the Higher Order

    Article • IEEE Transactions on Microwave Theory and Techniques, April 2004, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  83. A Dispersion-Reduction Scheme for the Higher Order

    Article • IEEE Transactions on Magnetics, March 2004, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  84. An Unconditionally Stable Higher Order ADI-FDTD Technique for the Dispersionless Analysis of Generalized 3-D EMC Structures

    Article • IEEE Transactions on Magnetics, March 2004, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  85. Higher Order Tangential Vector Finite Elements for 3-D Antenna Array Structures

    Article • Electromagnetics, January 2004, Taylor & Francis

    Dr Theodoros T. Zygiridis

  86. Higher order approaches of FDTD and TVFE methods for the accurate analysis of fractal antenna arrays

    Article • IEEE Transactions on Magnetics, May 2003, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  87. A nonstandard higher order FDTD algorithm for 3-D arbitrarily and fractal-shaped antenna structures on general curvilinear lattices

    Article • IEEE Transactions on Magnetics, March 2002, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  88. A comparative study of the biological effects of various mobile phone and wireless LAN antennas

    Article • IEEE Transactions on Magnetics, March 2002, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Theodoros T. Zygiridis

  89. Sierpinski double-gasket antenna investigated with 3-D FDTD conformal technique

    Article • Electronics Letters, January 2002, the Institution of Engineering and Technology (the IET)

    Dr Theodoros T. Zygiridis