All Stories

  1. Wide-Stopband and High Selectivity Step Impedance Resonator Bandpass Filter Using T-network and Antiparallel Coupled Line

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

    Dr PHIRUN KIM, Professor Yongchae Jeong

  2. Group Delay Analysis of Arbitrary Terminated Power Divider With Unequal Power-Diving Ratio

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

    Professor Yongchae Jeong

  3. An Impedance Matching Bandpass Filter with a Controllable Spurious Frequency Based on half-wavelength Stepped Impedance Resonator

    Article • IET Microwaves Antennas & Propagation, June 2018, the Institution of Engineering and Technology (the IET)

    Professor Yongchae Jeong, Dr PHIRUN KIM

  4. Controllable and wide spurious suppression power divider with a bandpass-filtering and high isolation

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

    Professor Yongchae Jeong, Dr PHIRUN KIM

  5. Unequal termination impedance parallel-coupled lines band-pass filter with arbitrary image impedance

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

    Dr PHIRUN KIM, Professor Yongchae Jeong

  6. Analysis and design of an unequal termination impedance power divider with bandpass filtering response

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

    Professor Yongchae Jeong

  7. Size reduction of composite right/left handed transmission line and its application to the design of dual-band bandpass filter

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

    Professor Yongchae Jeong, Boram An

  8. Design of a compact tri-band branch line coupler using double-lorentz composite right/left-handed transmission lines

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

    Professor Yongchae Jeong, Professor Jongsik Lim

  9. A finite unloaded quality-factor resonators based negative group delay circuit and its application to design power divider

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

    Professor Yongchae Jeong

  10. Unequal termination branch-line balun with high-isolation wideband characteristics

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

    Dr PHIRUN KIM, Professor Yongchae Jeong

  11. High efficiency power amplifier with frequency band selective matching networks

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

    Professor Yongchae Jeong, Dr PHIRUN KIM

  12. Enhancement impedance transforming ratios of coupled line impedance transformer with wide out-of-band suppression characteristics

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

    Dr PHIRUN KIM, Professor Yongchae Jeong

  13. Analysis and design of a branch-line balun with high-isolation wideband characteristics

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

    Dr PHIRUN KIM, Professor Yongchae Jeong

  14. Transmission-type negative group delay networks using coupled line doublet structure

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

    Professor Yongchae Jeong

  15. A design of compact wideband negative group delay network using cross coupling

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

    Professor Yongchae Jeong