Journal Papers
Soyeon Seo, Jinho Lee, Yongho Lee, and Hyunchol Shin, "A 28 GHz GaN 6-Bit Phase Shifter MMIC with Continuous Tuning Calibration Technique," Sensors, vol. 24, issue 4, article 1087 (15 pages), Feb. 2024 (https://doi.org/10.3390/s24041087)
Seongmin Lee, Yongho Lee, and Hyunchol Shin, "A 52-to-57 GHz CMOS Phase-Tunable Quadrature VCO Based on a Body Bias Control Technique," Electronics, vol. 12, issue 12, article 2679 (13 pages), Jun. 2023 (https://doi.org/10.3390/electronics12122679)
Yongho Lee, Soyeon Kim, and Hyunchol Shin, "A 24 GHz CMOS Direct-Conversion RF Receiver with I/Q Mismatch Calibration for Radar Sensor Applications," Sensors, vol. 22, issue 21, article 8246 (14 pages), Oct. 2022 (https://doi.org/10.3390/s22218246)
Yongho Lee, Byeonghyeon Kim and Hyunchol Shin, "28-GHz CMOS Direct-Conversion RF Transmitter with Precise and Wide-Range Mismatch Calibration Techniques," Electronics, vol. 11, issue 6, article 840 (14 pages), Mar. 2022 (https://doi.org/10.3390/electronics11060840)
Yongho Lee, Shinil Chang, Jungah Kim, and Hyunchol Shin, "A CMOS RF Receiver with Improved Resilience to OFDM-Induced Second-Order Intermodulation Distortion for MedRadio Biomedical Devices and Sensors," Sensors, vol. 21, issue 16, article 5303 (18 pages), Aug. 2021 (https://doi.org/10.3390/s21165303)
Sujae Lee, Yongho Lee, and Hyunchol Shin, "A 28-GHz Switched-Beam Antenna with Integrated Butler Matrix and Switch for 5G Applications," Sensors, vol. 21, issue 15, article 5128(14 pages), Jul. 2021 (https://doi.org/10.3390/s21155128)
Shinil Chang and Hyunchol Shin, “2.4-GHz CMOS Bluetooth RF Receiver With Improved IM2 Distortion Tolerance," IEEE Tran. Microwave Theory and Techniques, vol. 68, no. 11, pp.4589-4598, Nov. 2020
Jungah Kim, Yongho Lee, Shinil Chang and Hyunchol Shin, “Low-Power CMOS Complex Bandpass Filter with Passband Flatness Tunability," Electronics, vol. 9, issue 3, article 494 (11 pages), Mar. 2020 (https://doi.org/10.3390/electronics9030494)
Soyeon Kim, Seongjo Yoon, Yongho Lee and Hyunchol Shin, “A Miniaturized Butler Matrix Based Switched Beamforming Antenna System in a Two-Layer Hybrid Stackup Substrate for 5G Applications,” Electronics, vol. 8, issue 11, article 1232 (11 pages), Nov. 2019 (https://doi.org/10.3390/electronics8111232)
Hyunchol Shin and Hyukjun Oh, “UHF-Band TV Transmitter for TV White Space Video Streaming Applications,” J. of Electromagnetic Engineering and Science, vol. 19, no. 4, pp. 227-233, Oct. 2019
Soyeon Kim and Hyunchol Shin, “An Ultra-Wideband Conformal Meandered Loop Antenna for Wireless Capsule Endoscopy,” J. of Electromagnetic Engineering and Science, vol.19, no.2, pp.101-106, Apr. 2019
Yongho Lee, Shinil Chang, Jaegyeong Choi, Mihye Moon, Seungsoo Kim and Hyunchol Shin, "A CMOS Receiver Front-End with Fractional-N PLL Synthesizer for MedRadio Applications,” J. of Semiconductor Technology and Science, vol.18, no.6, pp.748-754, Dec. 2018
Yongho Lee, Seungsoo Kim, and Hyunchol Shin, "A 1-V 3.8-mW Fractional-N PLL Synthesizer with 25% Duty-Cycle LO Generator in 65nm CMOS for Bluetooth Applications,” J. of Semiconductor Technology and Science, vol.18, no.6, pp.730-736, Dec. 2018
Yongho Lee, Seungsoo Kim, and Hyunchol Shin, “A Low-Voltage Low-Power Wideband CMOS VCO with Robust Sub-band Switching Technique,” J. of Semiconductor Technology and Science, vol.18, no.6, pp.723-729, Dec. 2018
Seunghyeon Kim, Jihoon Sohn, and Hyunchol Shin, "A CMOS UHF Harmonic Rejection Transceiver with 2-D LO Phase Calibration for TV White Space Applications," IEEE Tran. on Circuits and Systems-II: Express Briefs, vol. 64, no. 11, pp. 1297-1301, Nov. 2017
Jihoon Sohn and Hyunchol Shin, “Initial Frequency Preset Technique for Fast Locking Fractional-N PLL Synthesizers,” J. of Semiconductor Technology and Science, vol.17, no.4, pp.534-542, Aug. 2017
G. Noh, H. Wang, C. Shin, S. Kim, Y. Jeon, H. Shin, J. Kim, and I. Kim, “Enabling Technologies toward Fully LTE-Compatible Full-Duplex Radio," IEEE Communications Magazine, vol.55, no.3, pp.188-195, Mar. 2017
Jihoon Sohn and Hyunchol Shin, “A CMOS Charge Pump Circuit with Short Turn-on Time for Low-spur PLL Synthesizers,” J. of Semiconductor Technology and Science, vol.16, no.6, pp.873-879, Dec. 2016
Hyunchol Shin, Jongsik Kim, and Namsoo Kim, “Source Degenerated Derivative Superposition Method for Linearizing RF FET Differential Amplifiers,” IEEE Tran. on Microwave Theory and Techniques, vol.63, no.3, pp.1026-1035, Mar. 2015
Jin-Sup Kim, Se-Hwan Choi, and Hyunchol Shin, “A CMOS Transceiver for Implantable Cardioverter Telemetry Service,” Microwave and Optical Technology Letters, vol. 56, no. 11, pp. 2580-2582, Nov. 2014
Hyeongyeol Park, and Hyunchol Shin, “A 3.8 MHz CMOS Wien-bridge oscillator with differential capacitive automatic amplitude control," IEICE Electronics Express, vol. 11, no. 17, pp. 1-5, Sep. 2014
Jin-Sup Kim, Kyu-Bok Lee, and Hyunchol Shin, “A Wide-Stopband Bandpass Filter using <λ/16 Capacitive-Coupled Short-Circuited Resonators In Wide-Gap Coplanar Waveguide Structure,” Microwave and Optical Technology Letters, vol. 55, no. 8, pp. 1752-1755, Aug. 2013
Hyun Kim and Hyunchol Shin, “A 2.4-GHz current-reuse OOK wake-up receiver for MICS applications,” IEICE Electronics Express, vol. 10, no. 14, pp. 1-4, Jul. 2013
Jongsik Kim and Hyunchol Shin, “A current-reuse MICS band CMOS RF transmitter for implantable cardioverter telemetry system,” IEICE Electronics Express, vol. 10, no. 12, pp. 1-4, Jun. 2013
Hyunchol Shin, “A 1-V TSPC Dual Modulus Prescaler with Speed Scalability Using Forward Body Biasing in 0.18 μm CMOS,” IEICE Transactions on Electronics, vol. E95-C, no. 5, pp. 1121-1124, Jun. 2012
Seunghyeon Kim and Hyunchol Shin, “A 2.3-GHz Sub-mW Current-Reuse CMOS VCO for Wireless Sensor Node Applications,” IEICE Transactions on Electronics, vol. E95-C, no. 5, pp. 968-971, May 2012
Jaewook Shin and Hyunchol Shin, “A 1.9-3.8 GHz ΣΔ Fractional-N PLL Frequency Synthesizer with Fast Auto-Calibration of Loop Bandwidth and VCO Frequency,” IEEE Journal of Solid-State Circuits, vol. 47, no. 3, pp. 665-675, Mar. 2012
Jin-Sup Kim, Kyu-Bok Lee, Jae-Young Lee, Ho-Jun Lee, and Hyunchol Shin, “A 2.4-GHz Bandpass Filter for Flexible RF Applications,” Microwave and Optical Technology Letters, vol. 54, no. 2, pp. 384-387,Feb. 2012
Jaewook Shin and Hyunchol Shin, “Design Considerations for Auto-Calibrations of Wide-Band ΣΔ Fractional-N PLL Synthesizers,” Journal of Electrical and Computer Engineering, vol. 2011, Article ID 139183, pp.1-9, Sep. 2011
Jin-sup Kim, Kyu-bok Lee, Jae-young, and Hyunchol Shin, “A Broadband Suspended Substrate Stripline Filter using Dual-Mode Resonator,” Microwave and Optical Technology Letters, vol. 53, no. 7, pp. 1626-1629, Jul. 2011
Seunghyeon Kim, Hyun Kim, Jongsik Kim, and Hyunchol Shin, “A 2.4-GHz 22-Mbps CMOS OOK Transmitter for Wireless Body Area Network,” IEICE Electronics Express, vol. 8, no. 11, pp. 825-829, Jun. 2011
Jongsik Kim and Hyunchol Shin, “A CMOS RF Tunable Filter for TV White Space Transmitter Applications,” IEICE Electronics Express, vol. 8, no. 10, pp. 742-747, May 2011
Jongsik Kim, Seung Jun Lee, Seungsoo Kim, Jong Ok Ha, Yun Seong Eo, and Hyunchol Shin, "A 54-862-MHz CMOS Transceiver for TV-Band White-Space Device Application,” IEEE Transactions on Microwave Theory and Techniques, vol. 59, no. 4, pp. 966-977, Apr. 2011
Jaewook Shin and Hyunchol Shin, “A Fast and High-Precision VCO Frequency Calibration Technique for Wideband Delta-Sigma Fractional-N Frequency Synthesizers," IEEE Tran. Circuits and Systems-I: Regular Papers, vol. 57, no. 7, pp. 1573-1582, Jul. 2010
Jaewook Shin and Hyunchol Shin, “A CMOS High-Speed Pulse Swallow Frequency Divider for ΔΣ Fractional-N PLL’s,” IEICE Electronics Express, vol. 7, no. 12, pp. 856-860, Jun. 2010
Hyunchol Shin and Youngcho Kim, “A CMOS Active-RC Low Pass Filter with Simultaneously Tunable High-and Low-Cutoff Frequencies for IEEE 802.22 Applications,” IEEE Tran. Circuits and Systems-II: Express Briefs, vol. 57, no. 2, pp. 85-89, Feb. 2010
Seungsoo Kim and Hyunchol Shin, "An E-TSPC Divide-by-2 Circuit With Forward Body Biasing in 0.25um CMOS," IEEE Microwave and Wireless Components Letters, vol. 19, no. 10, pp. 656-658, Oct. 2009
Sangwon Han, Jongsik Kim, Kwang-Ho Won, and Hyunchol Shin, "A Low Noise CMOS Low Dropout Regulator with an Area-Efficient Bandgap Reference," IEICE Transactions on Electronics, vol. E92-C, no. 5, pp. 740-742, May 2009
Seungsoo Kim and Hyunchol Shin, "A 0.6-2.7GHz Semidynamic Frequency Divide-by-3 Utilizing Wideband RC Polyphase Filter in 0.18um CMOS," IEEE Microwave and Wireless Components Letters, vol. 18, no. 10, pp. 701-703, Oct. 2008
Shinil Chang and Hyunchol Shin, “A Compact Circuit Model of Five-Port Transformer Balun for CMOS RF Integrated Circuits,” IEICE Transactions on Electronics, vol. E91-C, no. 10, pp. 1709-1712, Oct. 2008
Shinil Chang, Jubong Park, Kwang-Ho Won, and Hyunchol Shin, “Design of a 2.4-GHz Fully Differential Zero-IF CMOS Receiver Employing a Novel Hybrid Balun for Wireless Sensor Network,” J. of Semiconductor Technology and Science, vol. 8, no. 2, pp. 143-149, Jun. 2008
Jongsik Kim, Jaewook Shin, Seungsoo Kim, and Hyunchol Shin, “A Wideband CMOS LC VCO with Linearized Coarse Tuning Characteristics,” IEEE Transactions on Circuits and Systems-II: Express Briefs, vol. 55, no. 5, pp. 399-403, May 2008
Hyunchol Shin, “Fast Estimation of Spectral Spreading in GSM Offset PLL Transmitters Based on Folding Effects Analysis in Quadrature Phase Modulator,” IEEE Transactions on Microwave Theory and Techniques, vol. 56, no. 2, pp. 320-327, Feb. 2008
Jaewook Shin, Jongsik Kim, Seungsoo Kim, and Hyunchol Shin, "A Delta-Sigma Fractional-N Frequency Synthesizer for Quad-Band Multi-Standard Mobile Broadcasting Tuners in 0.18um CMOS,” J. of Semiconductor Technology and Science, vol. 7, no. 4, pp. 267-273, Dec. 2007
Hyunchol Shin and Hyun Kim, “Extraction Technique of Differential Second Harmonic Output in CMOS LC VCO,” IEEE Microwave and Wireless Components Letters, vol. 17, no. 5, pp. 379-381, May 2007
Hyunchol Shin and Bokyeon Won, “A 4.5 to 9.2-GHz Wideband Semi-Dynamic Frequency Divide-by-1.5 in GaInP/GaAs HBT,” IEEE Microwave and Wireless Components Letters, vol. 17, no. 1, pp. 73-75, Jan. 2007
Hyunchol Shin and Jongsik Kim, “A 17-GHz Push-Push VCO Based on Output Extraction from a Capacitive Common-Node in GaInP/GaAs HBT Technology," IEEE Transactions on Microwave Theory and Techniques, vol. 54, no. 11, pp. 3857-3863, Nov. 2006
J. Lee, H. Shin, C.H. Park, N.Y. Kim, “A Low Power Ku-band Downconverter in InGaP/GaAs HBT Technology,” IEEE Microwave and Wireless Components Letters, vol. 15, no.4, pp. 193-195, Apr. 2005
H. Shin, H. Ju, M.F. Chang, K. Nellis, P. Zampardi, "An Output VSWR Protection Circuit Using Collector-Emitter Avalanche Breakdown for SiGe HBT Power Amplifiers,” IEICE Tran. Electronics, vol. E87-C, no.9, Sep. 2004
Hyunchol Shin, Zhiwei Xu, M. Frank Chang, “A 1.8-V 6/9-GHz Reconfigurable Dual-Band Quadrature LC VCO in SiGe BiCMOS Technology,” IEEE Journal of Solid-State Circuits, vol.38, no.6, pp. 1028-1032, Jun. 2003
Hyunchol Shin and Helmut Leier, "Formula for the current gain cut-off frequency considering intrinsic emitter dimensions and extrinsic parasitics in HBT,” Solid-State Electronics, vol. 47, no. 4, pp. 747-749, Feb. 2003
Hyunchol Shin, Zhiwei Xu, K. Miyashiro, M. Frank Chang, “Estimation of Signal-to-Noise Ratio in RF-Interconnect,” Electronics Letters, Vol. 38, No. 25, pp. 1666-1667, Dec. 2002
Hyunchol Shin, M. Frank Chang, “1.1-Gb/s RF-Interconnect based on 10-GHz RF-Modulation in 0.18um CMOS,” Electronics Letters, vol. 38, no. 2, pp. 71-72, Jan. 2002
M. Frank Chang, V. Roychowdhury, Liyang Zhang, Hyunchol Shin, Yongxi Qian, "RF/Wireless Interconnect for Inter- and Intra-chip Communications,” Proceedings of the IEEE, vol. 89, no. 4, pp. 456-466, Apr. 2001
Hyunchol Shin, Woo-Seung Choo, Kyung-Suc Nah, Dong-Jin Keum, Jin-Sub Choi, Seung-Beom Baik, Tae-Won Ahn, Il-Young Sohn, Duck-Young Jung, Byeong-Ha Park, “Intermediate-Frequency/Baseband Analog Processing Chipset For a CDMA/AMPS Mobile Handset,” J. of the Korean Physical Society, vol. 39, no. 1, pp. 160-164, Jul. 2001
Hyunchol Shin, Helmut Leier, Young-Se Kwon, “Emitter Size Effects on DC Current Gain and RF Performance in InP/InGaAs HBT's,” J. of the Korean Physical Society, vol. 35,pp. S1051-S1054, Oct. 1999.39.
Hyunchol Shin, Christoph Gaessler, and Helmut Leier, “Reduction of Base-Collector Capacitance in InP/InGaAs HBT's using Double Polyimide Planarization,” IEEE Electron Device Letters, vol. 19, no. 8, pp. 297-299, 1998
Hyunchol Shin and Young-Se Kwon, “Formation of macroscopic steps during selective area metalorganic chemical vapor deposition on GaAs (001) vicinal substrates,” Journal of Crystal Growth,177, pp. 33-40, 1997
Hyunchol Shin, Jeong-Hwan Son, and Young-Se Kwon, “Monolithic Integration of AlGaAs/GaAs HBT and GaAs Junction-gate Floated Electron Channel Field Effect Transistor,” IEEE Microwave and Guided Wave Letters, vol.6, no.9, pp. 317-319, Sep. 1996