D. Kim, G. Lee, H. Song, I. Nam, and D. Im, "A programmable active polyphase filter based on a high-linearity, low-noise voltage substractor for high-speed wideband spectrum sensing receivers," IEEE Transaction on Microwave Theory and Techniques, Early Access. (doi: 10.1109/TMTT.2025.3626532)
S. Lee, J. Myung, G. Park, Y. Kim, O. Lee, and I. Nam, "Short-circuit protection circuit with current slope-to-digital conversion short-circuit detection and adaptive soft turn-off," IEEE Open Journal of Power Electronics, vol. 6, pp. 1382-1389, Aug. 2025. (doi:10.1109/OJPEL.2025.3594872)
G. Park, O. Lee. D. Im, I. Nam, "A frequency synthesizer with automatic frequency calibration robust to initial phase error and phase-noise enhanced ring oscillator," IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 72, no. 1, pp. 43-47, Jan. 2025. (doi: 10.1109/TCASII.2024.3474018)
D. Kim, H. Song, I. Nam, D. Im, "A folded cascode CMOS low noise amplifier with transformer feedback," Journal of Electromagnetic Engineering and Science, vol. 24, no. 1, pp. 57-64, Jan. 2024. (https://doi.org/10.26866/jees.2024.1.r.205)
H. Ahn, K. Oh, S.-E. Choi, D.-H. Lee, I. Nam, K. Lim, O. Lee, "A dual-mode CMOS power amplifier with an external power amplifier driver using 40 nm CMOS for narrowband internet-of-things applications," Nanomaterials, vol. 14, no. 3, p. 262, Jan. 2024.
S. Lee, O. Lee, I. Nam, "Review of short-circuit protection circuits for SiC MOSFETs," Journal of Semiconductor Technology and Science, vol. 23, no. 2, pp. 128-137, Apr. 2023.
S. Lee, Y. Jeon, D.-Y. Yoon, O. Lee, D. Im, I. Nam, "28-GHz CMOS up-conversion mixer with improved LO second-harmonic leakage signal suppression for 5G applications," IEEE Access, vol. 10, pp. 57003-57011, May 2022. (https://doi.org/10.1109/ACCESS.2022.3178440)
S. Lee, K. Kim, M. Shim, I. Nam, "A digital signal processing-based detection circuit for short-circuit protection of SiC MOSFET," IEEE Transactions on Power Electronics, vol. 36, no. 12, pp. 13379-13382, Dec. 2021. (https://doi.org/10.1109/TPEL.2021.3091679)
H. Ahn, K. Oh, I. Nam, O. Lee, "A highly efficient and linear mm-wave CMOS power amplifier using a compact symmetrical parallel-parallel power combiner with IMD3 cancellation for 5G applications," IEEE Access, 2021 (https://doi.org/10.1109/ACCESS.2021.3125349)
Yangji Jeon, S. Lee, G. Park, J. Myung, S. Lee, O. Lee, H. Moon, I. Nam, "A 24 GHz CMOS receiver front-end for in-cabin radar systems," Journal of Semiconductor Technology and Science, vol. 21, no. 4, Aug. 2021. (https://doi.org/10.5573/JSTS.2021.21.4.1)
I. Nam, O. Lee, D. Im, "A wideband sub-GHz receiver front-end supporting high sensitivity and selectivity mode," Journal of Semiconductor Technology and Science, vol. 21, no. 4, Aug. 2021. (https://doi.org/10.5573/JSTS.2021.21.4.1)
K. Oh, H. Ahn, I. Nam, H. Lee, B. Park, O. Lee, "A dual-mode InGaP/GaAs HBT power amplifier using a low-loss parallel power-combining transformer with IMD3 cancellation method," Electronics, vol. 10, no. 14, Jul. 2021. (https://doi.org/10.3390/electronics10141612)
H. Ahn, K. Oh, I. Nam, O. Lee, "Highly efficient HBT power amplifier using high-Q single- and two-winding transformer with IMD3 cancellation," vol. 9, pp. 85060-85070, IEEE Access, 2021 (https://doi.org/10.1109/ACCESS.2021.3088269)
J. Lee, I. Nam, D. Woo, "Current input pixel-level ADC with high SNR and wide dynamic range for microbolometer," Sensors, vol. 21, no.7, Mar. 2021. (https://doi.org/10.3390/s21072354)
S. Bae, D. Kim, D. Kim, I. Nam, D. Im, "A reconfigurable passive mixer-based sub-GHz receiver front-end for fast spectrum sensing functionality," IEEE Transaction on Circuits and Systems I: Regular Papers, vol. 68, no. 2, pp. 892-903, Feb. 2021. (https://doi.org/10.1109/TCSI.2020.3035167)
Suyeon Lee, Y. Jeon, G. Park, J. Myung, S. Lee, O. Lee, H. Moon, I. Nam, "A 24-GHz RF transmitter in 65-nm CMOS for in-cabin radar applications," Electronics, vol. 9, no. 12, Dec. 2020. (https://doi.org/10.3390/electronics9122005)
H. Ahn, I. Nam, D.H. Lee, O. Lee, "An integrated low-loss lumped-element quadrature coupler using a distributed model," Journal of Semiconductor Technology and Science, vol. 20, no. 3, pp. 249-254, Jun. 2020.
S.-E. Choi, H. Ahn, J. Hur, K.-W. Kim, I. Nam, J. Choi, O. Lee, "A fully integrated compact outphasing CMOS power amplifier using a parallel-combining transformer with a tuning inductor method," Electronics, vol. 9, no. 2, Feb. 2020.
H. Ahn, I. Nam, O. Lee, "An integrated lumped-element quadrature coupler with impedance transforming," IEEE Microwave and Wireless Components Letters, vol. 30, no. 12, pp. 152-155, Feb. 2020.
C. Kim, M. Kim, Y. Jeon, O. Lee, J. H. Son, I. Nam, "A 28-GHz CMOS down-conversion mixer with low-magnetic-coupled source degeneration inductors for 5G applications," Journal of Semiconductor Technology and Science, vol. 19, no. 4, pp. 373-377, Aug. 2019.
H. Ahn, S. Baek, I. Nam, D. An, J. Lee, M, Jeong, B.-E. Kim, Y. Lee, H.-T. Kim, Y.-C. Ho, O. Lee, "A fully integrated -32 dB EVM broadband 802.11abgn/ac PA with an external PA driver in WLP 40nm CMOS," IEEE Transaction on Microwave Theory and Techniques, vol. 67, no. 5, pp. 1870-1882, 2019.
D.-H. Son, H. Ahn, I. Nam, O. Lee, "An on-chip low-loss reconfigurable transformer for multimode power amplifiers", Microwave and Optical Technology Letters, vol. 61, pp. 943-947, Apr. 2019.
S.-E. Choi, H. Ahn, H. Ryu, I. Nam, O. Lee, "Fully integrated CMOS PAs with two-winding and single-winding combined transformer for WLAN applications," IEICE Transactions on Electronics, vol. 101, no. 12, pp. 931-941, Dec. 2018.
B. Shin, C. Kim, O. Lee, S. R. Park, S. Noh, I. Nam, "A 24 GHz Receiver front-end with Improved I/Q balanced LO generator in 65-nm CMOS for surveillance radar systems," Journal of Semiconductor Technology and Science, vol.18, no. pp. 475-479, Aug. 2018.
S. Baek, H. Ahn, I. Nam, J. Hur, Y. Yoon, and O. Lee, "A 5.5-GHz CMOS power amplifier using parallel-combined transistors with cascode adaptive biasing for WLAN applications," IEICE Electronics Express, vol. 15, no. 9, pp. 1-8, Apr. 2018.
S. R. Park, I. Nam, and S. Noh, "Modeling and simulation for the investigation of radar responses to electronic attacks in electronic warfare environments," Security and Communication Networks, pp. 1-13, Apr. 2018.
H. Ahn, S. Baek, I. Nam, and O. Lee, "Fully integrated WLAN CMOS PA with reconfigurable transformer," Electron. Lett., vol. 54, pp. 574-576, Mar. 2018.
H. Ahn, S. Choi, H. Ryu, S. Baek, I. Nam, and O. Lee, "2.3-GHz HBT Power Amplifier with Parallel-Segmented On-Chip Autotransformer," IEEE Microwave and Wireless Components Letters, vol. 27, no. 12, pp. 1140-1142, Dec. 2017.
H. Ahn, S. Baek, I. Nam, D. An, J. K. Lee, M. Jeong, B.-E. Kim, J. Choi, and O. Lee, "A fully integrated dual-mode power amplifier with an autotransformer-based parallel combining transformer," IEEE Microwave and Wireless Components Letters, vol. 27, no. 9, pp. 833-835, Sep. 2017.
D. H. Woo, I. Nam, O. Lee, and D. Im, "A UHF CMOS variable gain LNA with wideband input impedance matching and GSM interoperability," Journal of Semiconductor Technology and Science, pp. 499-504, Aug. 2017.
D. Im and I. Nam, "An up-conversion TV receiver front-end with noise canceling body-driven pMOS common gate LNA and LC-loaded passive mixer," IEICE Electronics Express, vol. 14, no. 9, pp. 20170175, May 2017.
C. Choi, J. H. Son, O. Lee, and I. Nam, "A +12-dBm OIP3 60-GHz RF downconversion mixer with an output-matching, noise- and distortion-canceling active balun for 5G applications," IEEE Microwave and Wireless Components Letters, vol. 27. no. 3, pp.284-286, Mar. 2017.
D. Im, O. Lee, and I. Nam,"A TV receiver front-end with linearized LNA and current-summing harmonic rejection mixer," IEEE Transactions on Circuits and Systems II: Express Brief, vol. 64, no. 3, pp. 269-273, Mar. 2017.
S. Baek, H. Ahn, H. Ryu, I. Nam, D. Ahn, D.-H. Choi, M.-S. Byun, M. Jeong, B.-E. Kim, and O. Lee, "A Fully Integrated Dual-Band WLP CMOS amplifier for 802.11n WLAN applications," Journal of Electromagnetic Engineering and Science, vol. 17, no. 1, pp. 20-28, Jan. 2017.
S. Baek, H. Ahn, I. Nam, N. Ryu, H. D. Lee, B. Park, and O. Lee, "A linear InGaP/GaAs HBT power amplifier using parallel-combined transistors with IMD cancellation", IEEE Microwave and Wireless Components Lett, vol. 26, no. 11, pp. 921-923, Nov. 2016.
I. Nam, C. Choi, O. Lee, and H. Moon, "A fully differential RC calibrator for accurate cut-off frequency of a programmable channel selection filter," Journal of Semiconductor Technology and Science, vol. 16, no. 5, pp. 682-686, Oct. 2016.
S. Baek, H. Ryu, I. Nam, M. Jeong, B.-E. Kim, and O. Lee, "A 2.4-GHz CMOS power amplifier with parallel-combined transistors and selective adaptive biasing for wireless LAN applications," Microwave and Optical Technology Letters, vol. 58, no. 6, pp. 1374-1377, Jun. 2016.
K. Kwon, I. Nam, and K. Lee, "A three terminal n+pn+ silicon CMOS light emitting device for the new fully integrated optical type fingerprint recognition system," IEEE Journal of Display Technology, vol. 12, no. 1, pp. 77-81, Jan. 2016.
C. Choi, K. Kwon, and I. Nam,"A 370μW CMOS MedRadio receiver front-end with inverter-based complementary switching mixer," IEEE Microwave and Wireless Components Letters, vol. 26, no. 1, pp. Jan. 2016.
I. Nam, J.-D. Bae, H. Moon, and B.-H. Park, "A 85-mW multistandard multiband CMOS mobile TV tuner for DVB-H/T, T-DMB, and ISDB-T applications with FM reception," Journal of Semiconductor Technology and Science, vol. 15, no. 3, pp. 381-389, Jun. 2015.
H. Ryu, I. Nam, and O. Lee, "A reconfigurable monolithic step-up autotransformer," Microwave and Optical Technology Letters, vol. 57, no. 7, pp. 1662-1666, July 2015.
O. Lee, H. Ryu, S. Baek, I. Nam, M. Jeong, and B.-E. Kim, "A high-efficiency CMOS power amplifier using 2:2 output transformer for 802.11n WLAN applications," Journal of Semiconductor Technology and Science, vol. 15, no. 2, pp. 280-285, Apr. 2015.
K. Kwon, J. Han, and I. Nam, "A wideband receiver front-end employing new fine RF gain control driven by frequency-translated impedance property," IEEE Microwave and Wireless Components Letters, vol. 25, no. 4, pp. 247-249, Apr. 2015.
I. K. Nam, H. S. Kang, and D. H. Woo, "Bio-signal acquisition circuit with high SNR for the u-healthcare system," IET Electronics Letters, vol. 50, no. 23, pp. 1671-1673, Nov. 19, 2014.
I. K. Nam and D.H. Woo, "Poly-Si AMOLED pixel circuit with compensation for threshold voltage and mobility variations," IET Electronics Letters, vol. 50, no. 13, pp. 934-935, Jun. 13, 2014. (Selected as the Featured Article in Brief Summary for the June issue)
I. Nam and D. Woo, "An ambient-light sensor system with start-up correction for LTPS-TFT LCD," IEICE Express, vol. 11, no. 5, p. 20140086, Mar. 2014.
D. Im and I. Nam, "A wideband digital TV receiver front-end with noise and distortion cancellation," IEEE Transaction on Circuits and Systems I, vol. 61, no. 2, pp. 562-572, Feb. 2014.
D. Im and I. Nam, “A 0.1 to 5 GHz ultra-wide band single-to-differential CMOS LNA with output balancing for SDRs,” IEICE Express, vol. 24, no. 24, p. 20130789, Dec. 2013.
J. Choi, C. Choi, and I. Nam, “A CMOS RF front-end with linearized current-to-current converter and gate switching mixer,” Microwave and Optical Technology Letters, vol. 55, no. 2, pp. 247-250, Feb. 2013.
K. Kwon and I.Nam, "A linearization technique for a transconductor using vertical bipolar junction transistors in a CMOS process," IEEE Transaction on Microwave Theory and Techniques, Jan. 2013.
I. Nam, H. Moon, and D. H. Woo, "Low noise and highly linear wideband CMOS RF front-end for DVB-H direct-conversion receiver," IEICE Transaction on Communications, vol. E95B, no. 7, pp. 2498-2500, Jul. 2012.
J. Choi, S.-H. Seo, H. Moon, and I. Nam, "A low noise and low power RF front-end for 5.8-GHz DSRC receiver in 0.13 μm CMOS," Journal of Semiconductor Technology and Science, vol. 11, no. 1, pp. 59-64, Mar. 2011.
D. H. Woo, I. K. Nam, and H. C. Lee, “Smart reset control for wide-dynamic-range LWIR FPAs,” IEEE Sensors Journal, vol. 11, no. 1, pp. 131-136, Jan. 2011.
D. Im, I. Nam, and K. Lee, “A CMOS active feedback balun-LNA with high IIP2 for wideband digital TV receivers,” IEEE Transaction on Microwave Theory and Techniques, vol. 58, no. 12, pp. 3566-3579, Dec. 2010.
D. Im, I. Nam, and K. Lee, “A low power broadband differential low noise amplifier employing noise and IM3 distortion cancellation for mobile broadcast receivers,” IEEE Microwave and Wireless Components Letters, vol. 20, no. 10, pp. 566-568, Oct. 2010.
I. Nam, H. Moon, and K. Kwon, “Highly linear and low noise differential bipolar MOSFET down-converter in CMOS process,” IET Electronics Letters, vol. 45, no. 11, pp. 548-550, 21 May 2009.
H. Moon, S. Yu, S.-S. Song, and I. Nam, “Characterization and modeling of stacked MIM on-chip capacitors with high capacitance density up to 20 GHz frequency region,” Microwave and Optical Technology Letters, vol. 51, no. 5, pp. 1235-1238, May 2009.
D. Im, I. Nam, H.-T. Kim, and K. Lee, “A wideband CMOS low noise amplifier employing noise and IM2 cancellation for a digital TV tuner,” IEEE Journal of Solid-State Circuits, vol. 44, no. 3, pp. 686-698, Mar. 2009. (IEEE Xplore Top Access 82th rank, Apr. 2009)
Y.-W. Lim, I. Nam, H.-T. Kim, and K. Lee, “A highly linear wideband up-conversion differential CMOS micromixer using IMD3 cancellation for a digital TV tuner IC,” IEEE Microwave and Wireless Components Letters, vol. 19, no. 2, pp. 89-91, Feb. 2009.
H. Moon and I. Nam, “1.3 V low close-in noise NMOS LC-VCO with parallel PMOS transistors,” IET Electronics Letters, vol. 44, no. 11, pp. 676-678, May 22 2008.
I. Nam, H. Moon, J.-D. Bae, and B.-H. Park, “A wideband CMOS RF front-end using AC-coupled current mirrored technique for multiband multistandard mobile TV tuners,” IEEE Microwave and Wireless Components Letters, vol. 17, no. 10, pp. 739-741, Oct. 2007.
I. Nam, K. Choi, J. Lee, H. Cha, B.-I. Seo, K. Kwon, and K. Lee, “A 2.4-GHz low-power low-IF receiver and direct-up conversion transmitter in 0.18-um CMOS for IEEE 802.15.4 WPAN applications,” IEEE Transaction on Microwave Theory and Techniques, vol. 55, no. 4, pp. 682-689, Apr. 2007.
J. Lee, I. Nam, S. Cho, and K. Lee, “Highly linear and low noise 2.4-GHz RF front-end circuits using transformer and vertical NPN BJT,” IET Electronics Letters, vol. 43, no. 2, pp. 103-105, Jan. 2007.
H. Cha, I. Yun, J. Kim, B.-C. So, K. Chun, I. Nam, and K. Lee, “A 32-kb standard CMOS antifuse one-time programmable ROM embedded in a 16-b microcontroller,” IEEE Journal of Solid-State Circuits, vol. 41, no. 9, pp. 2115-2124, Sept. 2006.
Y. Ku, I. Nam, S. Ha, K. Lee, and S. Cho, “Close-in phase-noise enhanced voltage controlled oscillator employing parasitic V-NPN transistor in CMOS process,” IEEE Transaction on Microwave Theory and Techniques, vol. 54, no. 4, pp. 1363-1369, Apr. 2006.
K. Lee, I. Nam, I. Kwon, J. Gil, K. Han, S. Park, and B.-I. Seo, “The impact of semiconductor technology scaling on CMOS RF and digital circuits for wireless application,” IEEE Transaction on Electron Devices, vol. 52, no. 7, pp. 1415-1422, July 2005.
I. Nam, B. Kim, and K. Lee, “CMOS RF amplifier and mixer circuits utilizing complementary characteristics of both NMOS and PMOS devices,” IEEE Transaction on Microwave Theory and Techniques, vol. 53, no. 5, pp. 1662-1671, May 2005.
I. Nam and K. Lee, “High-performance RF mixer and operational amplifier BiCMOS circuits using parasitic vertical bipolar transistor in CMOS technology,” IEEE Journal of Solid-State Circuits, vol. 40, no. 5, pp. 392-402, Feb. 2005.
P. Choi, H. Park, S. Kim, S. Park, I. Nam, T. Kim, S. Park, S. Shin, M. S. Kim, K. Kang, Y. Ku, H. Choi, S. M. Park, and K. Lee, “An experimental coin-sized radio for extremely low-power WPAN (IEEE802.15.4) application at 2.4 GHz,” IEEE Journal of Solid-State Circuits, vol. 38, no. 12, pp. 392-402, Dec. 2003.
T. W. Kim, B. Kim, I. Nam, B. Ko, and K. Lee, “A low-power highly linear cascoded multiple-gated transistor CMOS RF amplifier with 10 dB IP3 improvement,” IEEE Microwave and Wireless Components Letters, vol. 13, no. 9, pp. 420-422, Sept. 2003.
2. B. Kim, I. Nam, and K. Lee, “Single-ended differential RF circuit topologies fully utilizing complementary MOS devices,” Journal of Semiconductor Technology and Science, vol. 2, no. 1, pp. 7-18, Mar. 2002.
Y. J. Kim, H. C. Park, I. K. Nam, and K. Lee, “Architecture and algorithm for ultra-high precision image rejection mixer using digital compensation,” IET Electronics Letters, vol. 36, no. 19, pp. 1604-1606, Sept. 2000.
I. Nam, "A 1.57 GHz band CMOS RF receiver front-end for GPS application," Journal of The Institute of Electronics and Information Engineers, vol. 60, no. 1, 2023.
G. Park, S. Lee, J. Myung, H. Kim, I. Nam, "A millimeter-wave up-converter for 28-GHz 5G mobile systems in 65-nm CMOS technology," Journal of Integrated Circuits and Systems, vol. 9, no. 1, Jan. 2023.
Suyeon Lee and I. Nam, "A 2.4 GHz low noise and highly linear RF front-end for wireless IoT applications," Journal of The Institute of Electronics and Information Engineers, vol. 51, no. 12, pp. 24-29, Feb. 2021.
Sung Wook Yoon, Chang Yeol Kim, Yang Ji Jeon, and I. Nam, "A low phase noise integer-N frequency synthesizer for 2.4 GHz ZigBee application," IDEC Journal of Integrated Circuits and Systems, vol. 5, no. 2, pp. 23-28, Apr. 2019.
윤성욱, 전양지, 김창열, 이옥구, 남일구, "GSM 간섭 신호에 강인한 광대역 UHF 대역CMOS 수신기 프런트 엔드," 전자공학회 논문지, 55권 12호, pp. 60-64, Dec. 2018.
신보훈, 양해준, 김창열, 박소령, 노상욱, 남일구, "잡음 재밍 신호에 강인한 광대역 모노펄스 레이더 시스템 설계및 응답 특성 분석," 한국군사과학기술학회지, 21권, 1호, pp. 94-102, Feb. 2018.
Heesung Yang, Ockgoo Lee, and Ilku Nam, "심장박동 측정 레이더를 위한 24GHz I/Q LO 발생기," Journal of The Institute of Electronics and Information Engineers, vol. 53, no. 11, Nov. 2016.
Ilku Nam, Kuduck Kwon, and Ockgoo Lee, "A VHF/UHF-band variable gain low noise amplifier for mobile TV tuners," Journal of The Institute of Electronics and Information Engineers, vol. 51, no. 12, pp. 90-95, Dec. 2014.
Hyunsik Ryu, Ilku Nam, Dong-Ho Lee, and Ockgoo Lee, “CMOS power amplifier using mode changeable autotransformer,” Journal of The Institute of Electronics and Information Engineers, vol. 51, no. 4, pp. 735-741, Apr. 2014.
Yongcheul Jun, Chihoon Choi, Joonwoo Choi, Hyunwon Moon, and Ilku Nam, "Patent trend and strategy of underwater communication technology," Telecommunications Review, vol. 23, no. 6, pp. 777-796, Dec. 2013.
Chihhoon Choi, Donggu Im, and Ilku Nam, “An RF front-end for terrestrial and cable digital TV tuners,” Journal of The Institute of Electronics Engineers of Korea-Semiconductor and Devices, vol. 49, no. 12, pp. 242-246, Dec. 2012.
Joonwoo Choi, Hyunsu Lee, Chihhoon Choi, Sungkyung Park, and Ilku Nam, “A 2.4-GHz low-power direct-conversion transmitter based on current-mode operation,” Journal of The Institute of Engine ers of Korea-Semiconductor and Devices, vol. 48, no. 12, pp. 91-96, Dec. 2011.
K. Oh, H. Ahn, I. Nam, O. Lee, "A 24-to-44 GHz compact linear 5G power amplifier with open-terminated balun in 65nm bulk CMOS," IEEE European Solid State Circuits Conference, Milan, Italy, Sept. 2022.
J. H. Hwang, J. Kim, K. Kim, M. Shim, J. Kim, K. Lee, I. Nam, "Power management circuit with load connection control for photovoltaic energy harvesting," The international council on electrical engineering conference 2022, June 2022.
J. Kim, K. Lee, M. Shim, I. Nam, "Battery charging circuits with load/harvest connection control for magnetic energy harvester," 36th International Technical Conference on Circuits/Systems, Computers and Communications, June 2021.
Yangji Jeon, S. Lee, G. Park, J. Myung, S. Lee, I. Nam, "A 24 GHz RF receiver front-end for in-cabin radar applications," International Conference on Electronics, Information, and Communication, Jan. 2021.
H. Ahn, I. Nam, O. Lee, "A 28-GHz highly efficient CMOS power amplifier using a compact symmetrical 8-way parallel-parallel power combiner with IMD3 cancellation method," IEEE Radio Frequency Integrated Circuits Symposium, pp. 187-190, Aug. 2020.
J.-M. Myung, S.-J. Lee, I. Nam, "A 400-MHz CMOS passiver mixer for MedRadio application," International Conference on Green and Human Information Technology, Jan. 2020.
G.-W. Park, Y. Jeon, I. Nam, "A 0.4 - 1.4 GHz wideband noise canceling CMOS low noise amplifier," International Conference on Green and Human Information Technology, Jan. 2020.
Y. Jeon, S. W. Yoon, C. Kim, H. Moon, I. Nam, "A wideband digital TV receiver front-end with on-chip notch filter," International Conference on Electronics, Information, and Communication, Jan. 2019.
S. W. Yoon, C. Kim, Y. Jeon, D. H. Woo, I. Nam, "A fully integrated Ka-band low noise amplifier in 65-nm CMOS," International Conference on Electronics, Information, and Communication, Jan. 2019.
B. Shin, H. Moon, and I. Nam, "A low-pass filter with a novel RC calibrator," International Conference on Electronics, Information, and Communication, Thailand, Jan. 2017.
H. Yang, D. Im, and I. Nam, "A highly linear RF front-end with harmonic rejection," International Conference on Electronics, Information, and Communication, Thailand, Jan. 2017.
H. Ahn, S. Baek, H. Ryu, I. Nam, and O. Lee, "A highly efficient WLAN CMOS PA with two-winding and single-winding combined transformer," IEEE Radio Frequency Integrated Circuits Symposium, pp. 310-313, Jun. 2016.
S. Bae, I. Nam, and D. Woo, "A pixel circuit with Vth and mobility compensation," ICEIC, Vietnam, Jan. 2016.
H.-S. Yang, I. Nam, and D. Woo, "A low-power ambient-light sensor system employing start-up correction," International Conference on Electronics, Information, and Communication, Vietnam, Jan. 2016.
H.-S. Yang, S. Bae, C. Choi, and I. Nam, "A characterization of stacked MIM on-chip capacitors," International Conference on Electronics, Information, and Communication, Vietnam, Jan. 2016.
C. Choi, K. Kwon, S. Baek, O. Lee, and I. Nam, "An RF amplifier with transconductor linearization technique in a deep n-well CMOS technology," International Conference on Electronics, Information, and Communication, Singapore, Jan. 2015.
C. Choi, K. Kwon, and I. Nam, "An RF Gm-C low-pass filter adopting transconductor linearization technique," International Conference on Electronics, Information, and Communication, Jan. 2015.
C. Choi, J. Choi, M. Kim, H. Park, and I. Nam, "A low power 2.4-GHz CMOS direct-conversion transmitter for IEEE802.15.4," IEEE International Wireless Symposium, Xi'an, China, 24-26 Mar. 2014.
C. Choi, J. Choi, S.-H. Seo, M. Kim, H. Park, and I. Nam, "A low noise 5.8-GHz RF front-end in 0.13um CMOS," International Conference on Electronics, Information and Communication, Malaysia, 2014.
C. Choi, M. Kim, J. Choi, and I. Nam, "A down-conversion mixer with IMD3 cancellation for GPS and Galileo receiver," International Conference on Electronics, Information and Communication, Indonesia, 2013.
D. Woo, I. Nam, and J. Choi, "ROIC with adaptive reset control for improving dynamic range of IR FPAs," in IEEE International Conference on ASIC, Xiamen, China, Oct. 2011.
C. Choi, J. Choi, and I. Nam, "A low noise and highly linear 2.4-GHz RF front-end circuits for wireless sensor networks," in IEEE International Conference on ASIC, Xiamen, China, Oct. 2011.
D. Im, I. Nam, J.-Y. Choi, B.-K. Kim, and K. Lee, "A CMOS active feedback wideband single-to-differential LNA using inductive shunt-peaking for SAM-less SDR receivers," in IEEE Asian Solid-State Circuits Conf., China, Nov. 2010.
Y. Cho, J. Choi, D. H. Woo, and I. Nam, "A low noise and highly linear CMOS RF front-end for UHF-band DVB-H receivers," International Technical Conference on Circuits/Systems, Computers and Communications, Thailand, July 2010.
I. Nam, D. Im, Y.-W. Lim, X. Xu, H. S. Lee, and S.-H. Seo, "A low noise and highly linear wideband CMOS RF front-end circuits for digital TV tuners," in IEEE International Conference on ASIC, China, Oct. 2009.
D. Im, I. Nam, S.-S. Song, and H.-T. Kim, "A CMOS resistive feedback single-to-differential low noise amplifier with muliple-tuner-outputs for a digital TV tuner," in IEEE Radio Frequency Integrated Circuits Symp. Dig., Boston, MA, Jun. 2009.
Y. Kim, J. Kim, V. Palkomenko, D. H. Baek, J. Lee, E. Sung, I. Nam, B. H. Park, "A multi-band multi-mode CMOS direct-conversion DVB-H tuner," in IEEE Int. Solid-State Circuits Conf. Dig. Tech. Papers, San Francosco, CA, Feb. 2006.
S. Kim, I. Nam, T. W. Kim, K. Kang, and K. Lee, "A single-chip 2.4 GHz low-power CMOS receiver and transmitter for WPAN applications," in IEEE Radio and Wireless Conf., Boston, MA, Aug. 2003.
I. Nam, Y. J. Kim, and K. Lee, "Low 1/f noise and DC offset RF mixer for direct conversion receiver using parasitic vertical NPN bipolar transistor in deep n-well CMOS technology," in IEEE Symp. VLSI Circuits Dig. Papers, Kyoto, Japan, Jun. 2003.
I. Nam, B. Kim, and K. Lee, "Single-ended differential amplifier and mixer circuits utilizing complementary RF characteristics of both NMOS and PMOS," in IEEE Radio Frequency Integrated Circuits Symp. Dig., Philadelphia, PA, Jun. 2003.
P. Choi, H. Park, S. Kim, I. Nam, S. Park, T. W. Kim, S. Shin, S. Park, M. Kim, K. Kang, Y. Ku, H. Choi, S. M. Park, and K. Lee, "MICROS: A low-cost low-power 2.4 GHz CMOS radio chips for ubiquitous network application (invited)," in Proc. Cool Chips VI (An Int. Symp. Low Power and High Speed Chips), Yokohama, Japan, Apr. 2003.
P. Choi, H. Park, I. Nam, K. Kang, Y. Ku, S. Shin, S. Park, T. W. Kim, H. Choi, S. Kim, S. Park, M. Kim, S. M. Park, and K. Lee, "An experimental coin-sized radio for extremely low power WPAN(IEEE802.15.4) application at 2.4GHz," in IEEE Int. Solid-State Circuits Conf. Dig. Tech. Papers, San Francosco, CA, Feb. 2003.
T. W. Kim, B. Kim, I. Nam, B. Ko, and K. Lee, "A low power highly linear cascoded multiple gated transistor CMOS RF amplifier with 10dB IP3 improvement," in Proc. Asia-Pacific Workshop on Fundamental and Applications of Advanced Semiconductor Devices, 2002.
Multi-band low noise amplifier and multi-band radio frequency receiver including the same, 등록번호 US 8422981, 등록일 2013년 4월 16일.
Multi-band low noise amplifier and multi-band radio frequency receiver including the same, 등록번호 US 7877077, 등록일 2011년 1월 25일.
Programmable variable gain amplifier and RF receiver including the same, 등록번호 US 7860468, 등록일 2010년 12월 28일.
Signal converter having compensation unit, 등록번호 US 7646250, 등록일 2010년 1월 12일.
Feedback-type variable gain amplifier and method of controlling the same, 등록번호 US 7633337, 등록일 2009년 12월 15일.
Voltage reference circuit and current reference circuit using vertical bipolar junction transistor implemented by deep n-well CMOS process, 등록번호 US 7564298, 등록일 2009년 7월 21일.
Differential circuit with improved linearity, 등록번호 US 7423485, 등록일 2008년 9월 9일.
Transmitter using vertical BJT, 등록번호 US 7274317, 등록일 2007년 9월 25일.
Direct conversion receiver using vertical bipolar junction transistor available in deep n-well CMOS technology, 등록번호 US 7088168, 등록일 2006년 8월 8일.
Single-ended differential circuit using complementary devices, 등록번호 US 6693493, 등록일 2004년 2월 17일.
링 오실레이터, 대한민국 특허, 등록번호 10-1380342, 등록일 2014년 3월 26일.
피드백을 이용한 저잡음 증폭 회로, 대한민국 특허, 등록번호 10-1344052, 등록일 2013년 12월 16일.
전류 증폭기, 대한민국 특허, 등록번호 10-1284184, 등록일 2013년 7월 3일.
프론트 엔드 회로, 대한민국 특허, 등록번호 10-1181417, 등록일 2012년 9월 4일.
잡음 제거를 위한 차동 증폭기, 대한민국 특허, 등록번호 10-1163142, 등록일 2012년 6월 29일.
피드백을 이용한 차동 증폭기, 대한민국 특허, 등록번호 10-1155391, 등록일 2012년 6월 5일.
차동 증폭기, 대한민국 특허, 등록번호 10-1143547, 등록일 2012년 4월 30일.
피드포워드 방식의 증폭회로, 등록번호 10-1123232, 등록일 2012년 2월 27일.
고선형성, 저전력에 적합한 가변이득 증폭기 및 이를 이용한 RF 송신기, 대한민국 특허, 등록번호 10-1099699, 등록일 2011년 12월 21일.
저전압 믹서 회로, 대한민국 특허, 등록번호 10-1079194, 등록일 2011년 10월 27일.
잡음과 왜곡 특성을 개선시키는 상보적 회로, 대한민국 특허, 등록번호 10-1055850, 등록일 2011년 8월 3일.
레이아웃 면적을 최소화하는 멀티 인덕터 및 이를 포함하는 고주파 집적회로, 대한민국 특허, 등록번호 10-0975076, 등록일 2010년 8월 4일.
신호 변환기, 신호 변환 보상방법, 신호 변환기를 포함하는 RF 수신기, 및 RF 신호 수신 방법, 대한민국 특허, 등록번호 10-0916542, 등록일 2009년 9월 2일.
광 대역 프로그래머블 가변 이득 증폭기 및 그를 포함하는 무선 수신기, 대한민국 특허, 등록번호 10-0852186, 등록일 2008년 8월 7일.
씨모스 롬을 이용한 회로장치, 대한민국 특허, 등록번호 10-0831750, 등록일 2008년 5월 16일.
다중 대역용 저잡음 증폭기 및 다중 대역용 무선 신호수신기, 대한민국 특허, 등록번호 10-0824783, 등록일 2008년 4월 17일.
딥 엔웰 씨모스 공정으로 구현한 수직형 바이폴라 정션트랜지스터를 이용한 반도체 회로, 대한민국 특허, 등록번호 10-0801056, 등록일 2008년 1월 29일.
딥 엔웰 씨모스 공정으로 구현한 수직형 바이폴라 정션트랜지스터를 이용한 전압 기준 회로 및 전류 기준 회로, 대한민국 특허, 등록번호 10-0756317, 등록일 2007년 8월 31일.
선형성이 향상된 차동 회로, 이를 구비하는 차동 증폭 회로 및 믹서 회로, 대한민국 특허, 등록번호 10-0736394, 등록일 2007년 6월 29일.
피드백형 가변이득 증폭기 및 그 제어방법, 대한민국 특허, 등록번호 10-0705326, 등록일 2007년 4월 3일.
수직형 BJT로 구현된 송신기, 대한민국 특허, 등록번호 10-0652965, 등록일 2006년 11월 24일.
깊은 엔웰 씨모스로 구현된 수직형 바이폴라 접합트랜지스터를 이용한 수신기, 대한민국 특허, 등록번호 10-0650329, 등록일 2006년 11월 21일.
깊은 엔웰을 갖는 3중웰 씨모스 공정으로 구현된 수직형 바이폴라 접합 트랜지스터 제조방법 및 수신기, 대한민국 특허, 등록번호 10-0616233, 등록일 2006년 8월 18일.
표준 3중 웰 씨모스 공정에서 구현된 수직형 바이폴라정션 트랜지스터를 전류 소오스로 사용하는 회로, 대한민국 특허, 등록번호 10-0492280, 등록일 2005년 5월 20.
상보 소자를 이용한 싱글엔드형 차동 회로, 대한민국 특허, 등록번호 10-0487813, 등록일 2005년 4월 27일.
깊은 엔 웰 씨모스 공정으로 구현된 수직형 바이폴라 정션트랜지스터를 사용한 직접 변환 수신기, 대한민국 특허, 등록번호 10-0446004, 등록일 2004년 8월 17일.