2023
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67 |
A Wideband Low-Noise Amplifier Using High-Pass Filter Structure with Diode Linearizer
Hyojin Yoon, Jeayong Lee, Jaeheon Cho, Changkun Park
2023 Asia-Pacific Microwave Conference (APMC2023)
pp. 644-646, 05-08 Dec. 2023 (Taipei International Convention Center, Taipei, Taiwan)
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66 |
CMOS Power Amplifier with Inter-Stage Matching Network Using Tournament-Shape Transformer
Donghwan Seo, Jaeyong Lee, Jinho Yoo, Changkun Park
2023 Asia-Pacific Microwave Conference (APMC2023)
pp. 399-341, 05-08 Dec. 2023 (Taipei International Convention Center, Taipei, Taiwan)
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65 |
A Ka-band CMOS Active Phase Shifter Using Active Balun for Phase Optimization
Jimin Lee, Jaeyong Lee, Seongjin Jang, Changkun Park
2023 18th European Microwave Integrated Circuits Conference (EuMIC)
pp. 253-256, 18-19 Sep. 2023 (Messe Berlin Hub27, Berlin, Germany)
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64 |
Wide Band CMOS Power Amplifier with High Flatness Using Inter-Digit Transformer and RC-Feedback
Jaeheon Cho, Jaeyong Lee, Changkun Park
2023 IEEE Wireless and Microwave Technology Conference (WAMICON)
pp. 53-56,17-18 Apr. 2023(Melbourne, FL, USA)
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63 |
Sub-6 GHz GaAs pHEMT SPDT Switch with Low Insertion Loss and High Power Handling Capability Using Dual-Gate Technique
Jaehyun Kwon, Jinho Yoo, Jaeyong Lee, Taehun Kim, Changkun Park
2023 IEEE Wireless and Microwave Technology Conference (WAMICON)
pp. 49-52,17-18 Apr. 2023(Melbourne, FL, USA)
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2022
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62 |
A 6.78 MHz Current Detector Using PCB Transformer for Responsible Wireless Power Transfer
Seonhye Jang, Sunju Kim, Jaeyong Lee, Changkun Park
2022 52nd European Microwave Conference (EuMC)
pp. 652-655, 27-29 Sep. 2022 (Milano Convention Center, Milan, Italy)
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61 |
Ka-Band Wide Gain Control Range CMOS Variable Gain Amplifier Using PMOS for 5G Communications
Dongin Min, Jaeyong Lee, Seonhye Jang, Seongjin Jang, Changkun Park
2022 17th European Microwave Integrated Circuits Conference (EuMIC)
pp. 64-67, 26-27 Sep. 2022 (Milano Convention Center, Milan, Italy)
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60 |
Millimeter-Wave Retrodirective Beamformer Based on Waveguide Rotman Lens
Ha Young Hong, Changkun Park, Hojin Lee, Sun K. Hong
2022 14th Global Symposium on Millimeter-Waves & Terahertz (GSMM)
pp. 193-194, 18-20 May 2022 (Seoul, Korea)
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59 |
A 28GHz CMOS Active Balun Using Phase Correction Technique
Jimin Lee, Seongjin Jang, Jaeyong Lee, Sunju Kim, Changkun Park
International Conference on Electronics, Information, and Communication 2022
pp. 184-186, 06-09 Fab. 2022 (Grand Hyatt Jeju, Korea)
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2021
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58 |
CMOS 65nm Power Amplifier for 5.5 GHz Applications
Jinho Yoo, Changkun Park
2021 International SoC Design Conference
pp. CDC(P)-013, 06-09 Oct. 2021 (Ramada Plaza Jeju Hotel, Jeju, Korea)
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2020
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57 |
Design of a Metasurface Superstrate for Improved Reception of Wireless Power at Ka-Band
Kanghyeok Lee, Wonwoo Lee, Semin Jo, Hong Soo Park, Junhyuk Yang, Changkun Park, Hojin Lee, Sun K. Hong
2020 IEEE Wireless Power Transfer Conference
pp. 112-114, 15-19 Nov. 2020 (--, Seoul, Korea)
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56 |
5 GHz CMOS Voltage Controlled Oscillator with 2nd Harmonic Filter
Junhyuk Yang, Taehun Kim, Dongmin Baik, Changkun Park
2020 International SoC Design Conference
pp. CDC-P039, 21-24 Oct. 2020 (Sono Calm Yeosu Hotel, Yeosu, Korea)
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55 |
2.4 GHz CMOS Voltage Controlled Oscillator with 2nd Harmonic Filter
Junhyuk Yang, Sunju Kim, Seonhye Jang, Changkun Park
2020 International SoC Design Conference
pp. CDC-P038, 21-24 Oct. 2020 (Sono Calm Yeosu Hotel, Yeosu, Korea)
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54 |
Polarization Independent Flat Metasurface Lens for Millimeter-Wave Beam Focusing
Authors
Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XIII
3-6 Feb. 2020
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2019
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53 |
A Fully Integrated Switched Capacitor using Low Temperature and Wet Release Process for Reconfigurable CMOS Triple-band Power Amplifier
Hyunok Cho, Milim Lee, Changkun Park, Jae Yeong Park
2019 Asia-Pacific Microwave Conference (APMC2019)
pp. --, 10-13 Dec. 2019 (Marina Bay Sands, Singapore)
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2018
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52 |
Transceiver for Wireless Power Transfer Using a Cross-Coupled Oscillator for a Wireless On-Wafer Test
Milim Lee, Changhyun Lee, Changkun Park
2018 IEEE International Instrumentation & Measurement Technology Conference
pp. --, 14-17 May. 2018 (Houston, Texas, USA)
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51 |
A 2.4-GHz VCO Using a Symmetric Layout Technique to Minimize Mismatches in Differential Signals
Milim Lee, Changkun Park
The 32nd International Conference on Information Networking
pp. --(P2-20), 10-12 Jan. 2018 (Holiday Inn ChiangMai, Chiang Mai, Thailand)
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2017
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50 |
Design of a 2.4GHz CMOS LC VCO Considering Loss of Passive Devices
Jiho Kim, Joseph Jang, Milim Lee, Changkun Park
Korea-Japan Microwave Workshop 2017
pp. --, 11-12 Dec. 2017 (Kikai Shinko Kaikan Building, Tokyo, Japan)
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49 |
A WLAN RF CMOS Power Amplifier with Capacitance Compensation Method
Jiwon Kim, Jinho Yoo, Changkun Park
Korea-Japan Microwave Workshop 2017
pp. --, 11-12 Dec. 2017 (Kikai Shinko Kaikan Building, Tokyo, Japan)
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48 |
Adaptive Bias Circuit with Slope Shaping Technique for Power Amplifier
Seongjin Jang, Ki-Jin Kim, K. H. Ahn, Changkun Park
Korea-Japan Microwave Workshop 2017
pp. --, 11-12 Dec. 2017 (Kikai Shinko Kaikan Building, Tokyo, Japan)
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2016
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47 |
A 30 GHz Transformer Voltage Controlled Oscillator using Gate-Drain Magnetic Coupling
Milim Lee, Changkun Park
2016 International SoC Design Conference
pp. --, 23-26 Oct. 2016 (Ramada Plaza Jeju Hotel, Jeju, Korea)
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46 |
A LC Resonance Circuit for Differential RF Integrated Circuit
Changhyun Lee, Gayeon Ko, Dongwoo Moon, Sungjin Jang, and Changkun Park
2016 International SoC Design Conference
pp. --, 23-26 Oct. 2016 (Ramada Plaza Jeju Hotel, Jeju, Korea)
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|
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45 |
Design of NMOS-Transformer-PMOS Structure CMOS Power Amplifier
Gayeon Ko, Jinho Yoo, Seongjin Jang, Changkun Park
2016 International SoC Design Conference
pp. --, 23-26 Oct. 2016 (Ramada Plaza Jeju Hotel, Jeju, Korea)
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|
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44 |
A Series Inductor of a Differential structure for RFIC
Changhyun Lee, Hayeon Jung, Dongwoo Moon, Milim Lee, and Changkun Park
2016 International SoC Design Conference
pp. --, 23-26 Oct. 2016 (Ramada Plaza Jeju Hotel, Jeju, Korea)
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43 |
Design of a Wideband CMOS Power Amplifier
Hayeon Jeong, Changhyeon Lee, Jinho Yoo, Changkun Park
2016 International SoC Design Conference
pp. --, 23-26 Oct. 2016 (Ramada Plaza Jeju Hotel, Jeju, Korea)
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42 |
Power Consumption Change According to the Transitor Ratio of Ring Voltage Controlled Oscillator
Dongwoo Moon, Hooyoung Shin, Milim Lee, Changkun Park
2016 International SoC Design Conference
pp. --, 23-26 Oct. 2016 (Ramada Plaza Jeju Hotel, Jeju, Korea)
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41 |
High Efficiency 2.4 GHz Power Amplifier
Seongjin Jang, Inseong Kang, Mino Son, Changkun Park
2016 International SoC Design Conference
pp. --, 23-26 Oct. 2016 (Ramada Plaza Jeju Hotel, Jeju, Korea)
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40 |
Low-Profile and Chip-Scale RF FEM Using Si-Interposer Technology
Seong-Ryul Kim, Chngkun Park, Jong-min Yook
2016 IEEE MTT-S International Microwave Symposium (IMS)
pp. --, 22-27 May 2016 (San Francisco, CA, USA)
|
|
2015
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39 |
Design of a 24-GHz VCO Using Magnetic Coupling of Gate-Drain Through a Transformer
Milim Lee, Changkun Park
2015 Asia-Pacific Microwave Conference (APMC2015)
pp. --, 06-09 Dec. 2015 (Jinling Hotel, Nanjing, China)
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|
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38 |
A CMOS Power Amplifier Using Current Combining Technique with Transformer for WLAN Applications
Jonghoon Park, Changkun Park
2015 Asia-Pacific Microwave Conference (APMC2015)
pp. --, 06-09 Dec. 2015 (Jinling Hotel, Nanjing, China)
|
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2014
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37 |
Dual-Mode CMOS Power Amplifier for Mobile Applications
Yonghun Sim, Changkun Park
2014 International SoC Design Conference
pp. CDC(P)-136, 3-6 Nov. 2014 (Ramada Plaza Jeju Hotel, Jeju, Korea)
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36 |
Electrostatic Discharge(ESD) Protection Devices Using Distributed Diodes
Minoh Son, Changkun Park
2014 International SoC Design Conference
pp. CDC(P)-135, 3-6 Nov. 2014 (Ramada Plaza Jeju Hotel, Jeju, Korea)
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|
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35 |
Desgin of mmWave VCO Using Magnetic Coupling of Gate-Drain Through Transformer
Milim Lee, Changkun Park
2014 International SoC Design Conference
pp. CDC(P)-134, 3-6 Nov. 2014 (Ramada Plaza Jeju Hotel, Jeju, Korea)
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34 |
High Gain Switching Power Amplifier Using the Mode-Locking Method
Jonghoon Park, Changkun Park
2014 International SoC Design Conference
pp. CDC(P)-133, 3-6 Nov. 2014 (Ramada Plaza Jeju Hotel, Jeju, Korea)
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33 |
RF CMOS Power Amplifier for Mobile Applications
Jinho Yoo, Inseong Kang, Changkun Park
2014 International SoC Design Conference
pp. CDC(P)-132, 3-6 Nov. 2014 (Ramada Plaza Jeju Hotel, Jeju, Korea)
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|
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32 |
A Fully Integrated CMOS Low Noise Amplifier Using Active Balun at 5GHz Wireless Receivers
Inseong Kang, Jeahyuk Yoon, Changkun Park
2014 International SoC Design Conference
pp. CDC(P)-131, 3-6 Nov. 2014 (Ramada Plaza Jeju Hotel, Jeju, Korea)
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31 |
Voltage Controlled Oscillator Design Using Cascode Structure
Hooyoung Shin, Changkun Park
2014 International SoC Design Conference
pp. CDC(P)-130, 3-6 Nov. 2014 (Ramada Plaza Jeju Hotel, Jeju, Korea)
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30 |
1.6 GHz CMOS Power Amplifier Using Additional Class-D Bias
Changhyun Lee, Changkun Park
2014 International SoC Design Conference
pp. CDC(P)-129, 3-6 Nov. 2014 (Ramada Plaza Jeju Hotel, Jeju, Korea)
|
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2013
|
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29 |
Analysis of the Efficiency and Output Power in the Power Amplifier Using the Output Transformer
Taewon Kim, Changkun Park
2013 International SoC Design Conference
pp. CDC(P)-160, 17-19 Nov. 2013 (Busan, Korea)
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|
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28 |
Study on Supply Voltages of Power Amplifier to Enhance Its Efficiency
Hoyong Hwang, Changkun Park
2013 International SoC Design Conference
pp. CDC(P)-158, 17-19 Nov. 2013 (Busan, Korea)
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|
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27 |
Design of the X-Band Frequency Synthesizer for Low-Power Applications
Seongwoong Cho, Changkun Park
2013 International SoC Design Conference
pp. CDC(P)-157, 17-19 Nov. 2013 (Busan, Korea)
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|
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26 |
Transceiver with Inductive Coupling for Wireless Chip-to-Chip Communications
Changhyun Lee, Changkun Park
2013 International SoC Design Conference
pp. CDC(P)-156, 17-19 Nov. 2013 (Busan, Korea)
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|
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25 |
LC based CMOS Voltage Controlled Oscillation for ISM Band at 2.4 GHz
Jeahyuk Yoon, Changkun Park
2013 International SoC Design Conference
pp. CDC(P)-155, 17-19 Nov. 2013 (Busan, Korea)
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|
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24 |
Multi-Mode Supply Modulator for CMOS Power Amplifier Applications
Seokhyun Yoon, Jinho Yoo, Changkun Park
2013 International SoC Design Conference
pp. CDC(P)-154, 17-19 Nov. 2013 (Busan, Korea)
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23 |
A Switching Mode RF CMOS Power Amplifier Using Distributed Active Transformer
Donghwan Seo, Changkun Park
2013 International SoC Design Conference
pp. CDC(P)-153, 17-19 Nov. 2013 (Busan, Korea)
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|
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22 |
Supply Modulator for LTE Applications
Seokhyun Yoon, Milim Lee, Changkun Park
2013 International SoC Design Conference
pp. CDC(P)-092, 17-19 Nov. 2013 (Busan, Korea)
|
|
|
21 |
Improved Noise Figure of Low-Noise Amplifier Using Input-Combined Inductor
Taewon Kim, Changkun Park
2013 International SoC Design Conference
pp. CDC(P)-091, 17-19 Nov. 2013 (Busan, Korea)
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|
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20 |
Merged Coil Structure for the Wirless Chip-to-Chip Communications
Changhyun Lee, Changkun Park
2013 International SoC Design Conference
pp. CDC(P)-011, 17-19 Nov. 2013 (Busan, Korea)
|
|
2010
|
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19 |
Supply Modulator for RF CMOS Power Amplifier Applications
Seokhyun Yoon, Inseong Kang, Changkun Park
2013 International SoC Design Conference
pp. CDC(P)-093, 17-19 Nov. 2013 (Busan, Korea)
|
|
|
18 |
Quad-Band Inverse Class-F Power Amplifier using Novel Composite Right/Left-Handed Transmission Line
Jaewon Choi, Seungin Yang, Yong Moon, Changkun Park, Byung-Jun Jang, Jun-Kyung Cho, Chulhun Seo
2010 IEEE MTT-S International Microwave Symposium Digest
pp. 1078-1081, 23-28 May. 2010 (Anaheim, CA, USA)
|
|
2008
|
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17 |
On-Chip Power Combining Method in CMOS Power Amplifier
Yumi Lee, Changkun Park, Songcheol Hong
2008 Asia-Pacific Microwave Conference
pp. 1-4 , 16-19 Dec. 2008 (Macau, Hongkong)
|
|
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16 |
A 28-dBm pHEMT Power Amplifier Using Voltage Combiner for K-Band Applications
Bonhoon Koo, Changkun Park, Kyung Ai Lee, Jong-Hoon Chun, Songcheol Hong
2008 38th European Microwave Conference
pp. 293-296, 27-31 Oct. 2008 (Amsterdam, Netherland)
|
|
|
15 |
A 2.4-GHz HBT Power Amplifier Using an On-Chip Transformer as an Output Matching Network
Hoseok Seol, Changkun Park, Dong Ho Lee, Min Park, Songcheol Hong
2008 IEEE MTT-S International Microwave Symposium Digest
pp. 875-878, 15-20 Jun. 2008 (Atlanta, GA, USA)
|
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2007
|
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14 |
A 24-GHz pHEMT High-Gain Power Amplifier
Bonhoon Koo, Changkun Park, Songcheol Hong
2007 Asia-Pacific Workshop on Fundamental and Application of Advanced Semiconductor Devices
pp. 69-72, 25-27 Jun. 2007 (Gyeongju, Korea)
|
|
|
13 |
A High Dynamic Range CMOS RF Power Amplifier with a Switchable Transformer for Polar Transmitters
Younsuk Kim; Bon-Hyun Ku, Changkun Park, Dong Ho Lee, Songcheol Hong
2007 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium
pp. 737-740, 3-5 Jun. 2007 (Honolulu, HI, USA)
|
|
|
12 |
1.8-GHz CMOS Power Amplifier with Stage-Convertible Structure Using Differential Line Inductor
Changkun Park, Dong Ho Lee, Sang-Hyun Baek, Younsuk Kim, Songcheol Hong
2007 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium
pp. 741-744, 3-5 Jun. 2007 (Honolulu, HI, USA)
|
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2006
|
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11 |
A CMOS Power Amplifier for a UHF RFID Reader
Younsuk Kim, Jeonghu Han, Dongho Lee, Changkun Park, Songcheol Hong
2006 Asia-Pacific Microwave Conference
pp. 141-143, 12-15 Dec. 2006 (Yokohama, Japan)
|
|
|
10 |
A Large-Signal Model of RF LDMOS with Skin Effects of Power Combining Structures
Jeonghu Han, Changkun Park, Songcheol Hong
2006 Asia-Pacific Workshop on Fundamental and Application of Advanced Semiconductor Devices
pp. 151-154, 3-5. July. 2006 (Sendai, Japan)
|
|
|
9 |
A Fully-Integrated 900-MHz CMOS Power Amplifier for Mobile RFID Reader Applications
Jeonghu Han, Younsuk Kim, Changkun Park, Dongho Lee, Songcheol Hong
2006 IEEE, Radio Frequency Integrated Circuits (RFIC) Symposium
pp. -, 11-13 June 2006 (San Francisco, CA, USA)
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|
|
8 |
Differential HBT Power Cell and Its Model Parameter Extractions
Dong Ho Lee, Yunseok Kim, Changkun Park, Jeonghu Han, Sanghoon Jeon, Jae-Woo Park, Songcheol Hong
2006 IEEE Digest of Topical Workshop on Power Amplifiers for Wireless Communications
pp. -, 16-17 Jan. 2006 (San Diego, CA. USA)
|
|
|
7 |
A High Dynamic Range CMOS Power Amplifier
Changkun Park, Younsuk Kim, Jeonghu Han, Dongho Lee, Donghyun Baek, Songcheol Hong
2006 IEEE Digest of Topical Workshop on Power Amplifiers for Wireless Communications
pp. -, 16-17 Jan. 2006 (San Diego, CA. USA)
|
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2005
|
|
6 |
ESD Characteristics of GaAs Versus Silicon Diode
Changkun Park, Seok-Oh Yun, Jeonghu Han, Sang-Hoon Cheon, Jae-Woo Park, Songcheol Hong
2005 European Gallium Arsenide and Other Semiconductor Application Symposium
pp. 273-276, 3-4 Oct. 2005 (Paris, France)
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|
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5 |
Properties of RFLDMOS with Low Resistive Substrate for Handset Power Applications
Juhyun Ko, Sunhak Lee, Han-Soo Oh, Joo-Hyun Jeong, Donghyun Baek, Kyoungmin Koh, Jeonghu Han, Changkun Park, Songcheol Hong, Ilhun Shon
2005 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium
pp. 61-64, 12-14 Jun. 2005 (Long Beach, CA, USA)
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|
|
4 |
A Large-Signal Model of RF LDMOS with Skin Effects of Power Combining Structures
Jeonghu Han, Changkun Park, Donghyun Baek, Kyoungmin Koh, Juhyun Ko, Ilhun Shon, Songcheol Hong
2005 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium
pp. 149-152, 12-14 Jun. 2005 (Long Beach, CA, USA)
|
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2003
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3 |
Ku-Band ESD Protected Low Noise Amplifier
Chang-Kun Park, Min-Gun Kim, Chung-Han Kim, Songcheol Hong
2003 The 5th Topical Symposium on Millimeter Waves (TSMMW2003)
pp. 101 - 104, 17-18 Mar. 2003 (Yokosuka, Japan)
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2 |
Ku-Band Low Noise Amplifier with Using Short-Stub ESD Protection
Chang-Kun Park, Min-Gun Kim, Chung-Han Kim, Songcheol Hong
2003 IEEE MTT-S International Microwave Symposium Digest
pp. A157-A160 vol.1, 8-13 Jun. 2003 (Philadelphia, PA, USA)
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|
|
1 |
Ku-Band Low Noise Amplifier with Using Short-Stub ESD Protection
Chang-Kun Park, Min-Gun Kim, Chung-Han Kim, Songcheol Hong
2003 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium
pp. 671-674, 8-10 Jun. 2003 (Philadelphia, PA, USA)
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