A 220-to-320-GHz FMCW Radar in 65-nm CMOS Using a Frequency-Comb Architecture. - Xiang Yi; Cheng Wang 009; Xibi Chen; Jinchen Wang; Jesús Grajal; Ruonan Han 001 (IEEE J. Solid State Circuits, 2021)

Active RISs: Signal Modeling, Asymptotic Analysis, and Beamforming Design. - Zijian Zhang 007; Linglong Dai; Xibi Chen; Changhao Liu; Fan Yang 027; Robert Schober; H. Vincent Poor (GLOBECOM, 2022)

A 140GHz Transceiver with Integrated Antenna, Inherent-Low-Loss Duplexing and Adaptive Self-Interference Cancellation for FMCW Monostatic Radar. - Xibi Chen; Muhammad Ibrahim Wasiq Khan; Xiang Yi; Xingcun Li; Wenhua Chen 002; Jianfeng Zhu 003; Yang Yang 034; Kenneth E. Kolodziej; Nathan M. Monroe; Ruonan Han 001 (ISSCC, 2022)

Electronic THz Pencil Beam Forming and 2D Steering for High Angular-Resolution Operation: A 98×98-Unit 265GHz CMOS Reflectarray with In-Unit Digital Beam Shaping and Squint Correction. - Nathan M. Monroe; Georgios C. Doqiamis; Robert Stingel; Preston Myers; Xibi Chen; Ruonan Han 001 (ISSCC, 2022)

A 140-GHz FMCW TX/RX-Antenna-Sharing Transceiver With Low-Inherent-Loss Duplexing and Adaptive Self-Interference Cancellation. - Xibi Chen; Xiang Yi; Muhammad Ibrahim Wasiq Khan; Xingcun Li; Wenhua Chen 002; Jianfeng Zhu 003; Yang Yang 034; Kenneth E. Kolodziej; Nathan M. Monroe; Ruonan Han 001 (IEEE J. Solid State Circuits, 2022)

A 1.54mm2 Wake-Up Receiver Based on THz Carrier Wave and Integrated Cryptographic Authentication. - Eunseok Lee 002; Muhammad Ibrahim Wasiq Khan; Xibi Chen; Utsav Banerjee; Nathan M. Monroe; Rabia Tugce Yazicigil; Ruonan Han 001; Anantha P. Chandrakasan (CICC, 2023)

Active RIS vs. Passive RIS: Which Will Prevail in 6G? - Zijian Zhang 007; Linglong Dai; Xibi Chen; Changhao Liu; Fan Yang 027; Robert Schober; H. Vincent Poor (IEEE Trans. Commun., 2023)

A CMOS-Integrated Color Center Pulse-Sequence Control and Detection System. - Jinchen Wang; Isaac B. Harris; Xibi Chen; Dirk R. Englund; Ruonan Han 001 (CICC, 2024)

12.5 A Packageless Anti-Tampering Tag Utilizing Unclonable Sub-THz Wave Scattering at the Chip-Item Interface. - Eunseok Lee 002; Xibi Chen; Maitreyi Ashok; Jae-Yeon Won; Anantha P. Chandrakasan; Ruonan Han 001 (ISSCC, 2024)

A 1.54-mm2, 264-GHz Wake-Up Receiver With Integrated Cryptographic Authentication for Ultra-Miniaturized Platforms. - Eunseok Lee 002; Muhammad Ibrahim Wasiq Khan; Xibi Chen; Utsav Banerjee; Nathan M. Monroe; Rabia Tugce Yazicigil; Ruonan Han 001; Anantha P. Chandrakasan (IEEE J. Solid State Circuits, 2024)

A 265-GHz CMOS Reflectarray With 98×98 Elements for 1°-Wide Beam Forming and High-Angular-Resolution Radar Imaging. - Xibi Chen; Nathan M. Monroe; Georgios C. Dogiamis; Robert Stingel; Preston Myers; Ruonan Han 001 (IEEE J. Solid State Circuits, 2024)

A 232-to-260GHz CMOS Amplifier-Multiplier Chain With a Low-Cost, Matching-Sheet-Assisted Radiation Package and 11.1dBm Total Radiated Power. - Jinchen Wang; Daniel Sheen; Xibi Chen; Steven F. Nagle; Ruonan Han 001 (ISSCC, 2025)