A 5.5-dBm, 31.9% Efficiency 915-MHz Transmitter Employing Frequency Tripler and 207- KS Choi, KM Kim, SB Kim, BH Yun, J Ko, J Kim, SG Lee
IEEE Microwave and Wireless Components Letters 30 (1), 90-93, 2019
11 2019 A 915 MHz, 499 μW,–99 dBm, and 100 kbps BFSK direct conversion receiver KM Kim, ER Jeong, KS Choi, S Kim, B Yun, H Jung, W Oh, J Ko, SG Lee
ESSCIRC 2019-IEEE 45th European Solid State Circuits Conference (ESSCIRC …, 2019
11 2019 A fully integrated 490-GHz CMOS heterodyne imager adopting second subharmonic resistive mixer structure KS Choi, DR Utomo, SG Lee
IEEE Microwave and Wireless Components Letters 29 (10), 673-676, 2019
10 2019 An LPWAN radio with a reconfigurable data/duty-cycled-wake-up receiver KM Kim, KS Choi, H Jung, B Yun, S Kim, W Oh, ES Lee, S Park, ER Jeong, ...
2022 IEEE International Solid-State Circuits Conference (ISSCC) 65, 404-406, 2022
8 2022 29.7 a 490GHz 32mw fully integrated CMOS receiver adopting dual-locking FLL KS Choi, DR Utomo, KM Kim, BH Yun, SG Lee, IY Lee
2020 IEEE International Solid-State Circuits Conference-(ISSCC), 452-454, 2020
8 2020 A–123-dBm sensitivity split-channel BFSK reconfigurable data/wake-up receiver for low-power wide-area networks KM Kim, HG Seok, OY Jung, KS Choi, B Yun, S Kim, W Oh, ER Jeong, ...
IEEE Journal of Solid-State Circuits 56 (9), 2656-2667, 2021
7 2021 A sub-nW single-supply 32-kHz sub-harmonic pulse injection crystal oscillator KM Kim, S Kim, KS Choi, H Jung, J Ko, SG Lee
IEEE Journal of Solid-State Circuits 56 (6), 1849-1858, 2020
7 2020 Analysis and design of inductorless transimpedance amplifier employing nested feedforward noise-canceling amplifiers H Jung, KS Choi, J Kim, SG Lee
IEEE Transactions on Microwave Theory and Techniques 70 (8), 3923-3932, 2022
6 2022 A 0.3-to-1-GHz IoT transmitter employing pseudo-randomized phase switching modulator and single-supply class-G harmonic rejection PA KS Choi, J Ko, KM Kim, J Kim, SG Lee
IEEE Journal of Solid-State Circuits 57 (3), 892-905, 2021
5 2021 A 915 MHz IoT transmitter employing frequency tripler and digitally controlled duty-cycle/phase calibration KS Choi, KM Kim, J Ko, SG Lee
IEEE Journal of Solid-State Circuits 57 (11), 3336-3347, 2022
4 2022 A Low-Noise and Fast-Settling UHF RFID Receiver With Digitally Controlled Leakage Cancellation S Kim, KS Choi, KM Kim, J Ko, J Kim, SG Lee
IEEE Transactions on Circuits and Systems II: Express Briefs 68 (8), 2810-2814, 2021
4 2021 A 5 dBm 30.6% Efficiency 915 MHz Transmitter with KS Choi, KM Kim, J Ko, SG Lee
2020 IEEE Asian Solid-State Circuits Conference (A-SSCC), 1-4, 2020
4 2020 A 250 GHz Wideband Direct-Conversion CMOS Receiver Adopting Baseband Equalized Low-Loss Resistive Passive Mixer HR Jeon, BH Yun, HK Lee, SG Lee, KS Choi
IEEE Transactions on Circuits and Systems II: Express Briefs, 2023
3 2023 245/243GHz, 9.2/10.5 dBm Saturated Output Power, 4.6/2.8% PAE, and 28/26dB Gain Power Amplifiers in 65nm CMOS Adopting 2-and 4-way Power Combining B Yun, DW Park, KS Choi, HJ Song, SG Lee
2021 IEEE Asian Solid-State Circuits Conference (A-SSCC), 1-3, 2021
3 2021 A single-supply single-core inverse class-D digital power amplifier with enhanced power back-off efficiency adopting output power scaling technique KS Choi, J Ko, SG Lee
2021 Symposium on VLSI Circuits, 1-2, 2021
3 2021 An active leakage canceller adopting switched-capacitor digital power amplifier for UHF-RFID transceiver KS Choi, S Kim, J Ko, SG Lee
IEEE Microwave and Wireless Components Letters 31 (6), 604-607, 2021
3 2021 500 GHz CMOS heterodyne imager adopting fourth subharmonic passive mixer KS Choi, DW Park, DR Utomo, SG Lee
Microwave and Optical Technology Letters 62 (2), 683-687, 2020
3 2020 A Fully Integrated 490-GHz CMOS Receiver Adopting Dual-Locking Receiver-Based FLL KS Choi, KM Kim, DR Utomo, IY Lee, SG Lee
IEEE Journal of Solid-State Circuits 57 (9), 2626-2639, 2022
2 2022 A H Lee, B Yun, H Jeon, W Keum, SG Lee, KS Choi
IEEE Transactions on Microwave Theory and Techniques, 2023
1 2023 0.6 V 8.1/0.2 µW Ultra-Low-Power Logarithmic Power Detectors Employing Subthreshold MOS Transistors KM Kim, HG Seok, JII Seo, KS Choi, SG Lee
2021 IEEE Asian Solid-State Circuits Conference (A-SSCC), 1-3, 2021
1 2021 