| 2024-03 | A Concurrent 26/48 GHz Low-Noise Amplifier With an Optimal Dual-Band Noise Matching Method Using GaAs 0.15 μm pHEMT | 김정현 |
| 2009-10 | Fully integrated 3 x 3 mm BiFET stage-bypass power amplifier for WCDMA handset application | 김정현 |
| 2010-02 | Fully Integrated HBT MMIC Series-Type Extended Doherty Amplifier for W-CDMA Handset Applications | 김정현 |
| 2017-07 | A G-band frequency doubler using a commercial 150 nm GaAs pHEMT technology | 김정현 |
| 2019-06 | GaAs HBT 공정을 이용한 주파수 분배 방식의 광대역 구동증폭기 설계 | 김정현 |
| 2023-08-31 | GaN-Based 4-MHz Full-Bridge Electrosurgical Generator Using Zero-Voltage Switching Over Wide Load Impedance Range | 김정현 |
| 2024-02-20 | The Generalization of Stage-Reduced STPS for Low-Loss Unequal 1×4 Phased Array Architecture for 5G IoT Applications | 김정현 |
| 2009-12 | Helix on Pad-Type Ultra Small-Size Power Amplifiers for WCDMA Handset Applications | 김정현 |
| 2023-02 | High-Powered RF SOI Switch With Fast Switching Time for TDD Mobile Applications | 김정현 |
| 2023-01-18 | High-Powered RF SOI Switch With Fast Switching Time for TDD Mobile Applications | 김정현 |
| 2023-11 | High-Q Transformer Neutralization Technique for W-Band Dual-Band LNA Using 0.1 μm GaAs pHEMT Technology | 김정현 |
| 2018-03 | Highly Efficient 5.15-to 5.85-GHz Neutralized HBT Power Amplifier for LTE Applications | 김정현 |
| 2009-06 | HoP-iPD 출력 매칭 회로를 적용한 2mm × 2mm 크기의 WCDMA 단말기용 마이크로파 전력 증폭기 개발 | 김정현 |
| 2023-10 | Improved Linearity and Efficiency of 5-GHz HBT Power Amplifier Using Transformer-Based Second Harmonic Trap Network | 김정현 |
| 2011-04 | Improvement of Noise Performance in Phased-Array Receivers | 김정현 |
| 2018-09 | A linearity-improved multi-band envelope tracking Tx power amplifier under antenna mismatch for mobile applications | 김정현 |
| 2023-04 | Modeling of Practical Substrate Thickness in Multilayer Printed Circuit Board for Millimeter-Wave Packaging | 김정현 |
| 2015-01 | A Multi-Mode Multi-Band Reconfigurable Power Amplifier for 2G/3G/4G Handset Applications | 김정현 |
| 2018-02 | A Multiband Directional Coupler Using SOI CMOS for RF Front-End Applications | 김정현 |
| 2015-05 | A Novel Load Mismatch Detection and Correction Technique for 3G/4G Load Insensitive Power Amplifier Application | 김정현 |
| 2022-10 | Novel Quantum Molecular Resonance Energy Source for Laparoscopic Bipolar Vessel Sealer: An Experimental Study in Animal Model | 김정현 |
| 2020-01 | A Programmable Impedance Tuner with a High Resolution Using a 0.18-um CMOS SOI Process for Improved Linearity | 김정현 |
| 2016-05 | A Simple Extraction Method of Thermal Resistance in Multifinger GaAs HBT | 김정현 |
| 2023-02-10 | Switchless Dual-Power-Mode Fully Differential HBT Power Amplifier for Mobile Applications | 김정현 |
| 2008-09 | Temperature Compensating Bias Circuit for GaAs HBT RF Power Amplifiers with a Stage Bypass Architecture | 김정현 |
| 2008-09 | Temperature compensating bias circuit for GaAsHBT RF power amplifiers with stage bypass architecture | 김정현 |
| 2012-04 | Tunable impedance transformer using multiconductor coupled lines | 김정현 |
| 2018-09 | U-shaped stacked structure monolithic transformer for efficiency improvement | 김정현 |
| 2010-04 | Ultra-small Form-Factor Helix on Pad-Type Stage-Bypass WCDMA Tx Power Amplifier Using a Chip-Stacking Technique and a Multilayer Substrate | 김정현 |
| 2019-06 | W-Band Backward Distributed Frequency Doubler Using GaAs 0.15-mu m pHEMT Process | 김정현 |
