A Hybrid Integrated W-Band 4-Element Phased-Array Transceiver Front-End Achieving 21.6% Full TX Peak PAE at 14.8dBm Output Power and <1°/dB Phase/Gain Resolution in 65-nm CMOS Technology

Wei Zhu, Jian Zhang, Jiazhi Ying, Xiangjie Yi, Yan Wang, Houjun Sun

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

W-band phased arrays for radar and B5G/6G communication systems have obtained an ever-increasing attention [1]-[6]. Due to the challenges of lower active gain and higher passive loss, most W-band transceiver (TRX) front-end (FE) do not integrate T/R switches, attenuators (ATTs) and high resolution phase shifters (PSs) [1]-[6], which will significantly reduce the system performance and increase the die area. To address this challenge, we have reported a coupled-line (CL)-based implementation mechanism of a W-band T/R switch, PS and ATT in [7]. In order to further advance the evolution of the W-band TRX FE and address the issues of TX/RX isolation, power efficiency as well as die area. This work presents a hybrid integrated W-band 4-element phased-array TRX FE in 65-nm CMOS technology. A hybrid integrated architecture is proposed to integrate the functions of phase shifting and attenuation into active amplifiers to reduce the IL and die area of the PSs and the ATTs, and greatly improve the power and area efficiency of the TRX FE. A CL-based isolation enhanced T/R switch is proposed to increase the TX/RX isolation while remaining low IL. Benefiting from the proposed techniques, the proposed W-band TRX FE prototype achieves (1) 10.2%/21.6% OP1dB/peak PAE at 10.8/14.8dBm output power (Pout), (2) <1°/dB phase/gain resolution, (3) 53% area reduction compared to the previous version in [7].

Original languageEnglish
Title of host publication2023 IEEE Asian Solid-State Circuits Conference, A-SSCC 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350330038
DOIs
Publication statusPublished - 2023
Event19th IEEE Asian Solid-State Circuits Conference, A-SSCC 2023 - Haikou, China
Duration: 5 Nov 20238 Nov 2023

Publication series

Name2023 IEEE Asian Solid-State Circuits Conference, A-SSCC 2023

Conference

Conference19th IEEE Asian Solid-State Circuits Conference, A-SSCC 2023
Country/TerritoryChina
CityHaikou
Period5/11/238/11/23

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Zhu, W., Zhang, J., Ying, J., Yi, X., Wang, Y., & Sun, H. (2023). A Hybrid Integrated W-Band 4-Element Phased-Array Transceiver Front-End Achieving 21.6% Full TX Peak PAE at 14.8dBm Output Power and <1°/dB Phase/Gain Resolution in 65-nm CMOS Technology. In 2023 IEEE Asian Solid-State Circuits Conference, A-SSCC 2023 (2023 IEEE Asian Solid-State Circuits Conference, A-SSCC 2023). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/A-SSCC58667.2023.10347955