A 77 GHz Power Amplifier Design with in-Phase Power Combing for 20 dBm Psat in a 40-nm CMOS Technology

Guanglai Wu, Yi Zhang, Lin He, Diyang Gao, Yang Liu, Yufeng Guo, Hao Gao

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

Abstract

Detection distance is a critical specification in automotive driving. The output power of a power amplifier is the bottleneck for the detection range. In this work, a design of 77 GHz power amplifier is presented in a 40 nm CMOS technology with a four-way parallel-series power combing technique for achieving a 20 dBm output power (Psat), which meets a 186-meter detection range in the conditional of 30 mm/h rainfall capacity. In this parallel-series power combing technique, distributed active transformers perform load-pull matching and in-phase power combining. It achieves a compact solution for future on-chip antenna integration. This PA is optimized for maximal power-added efficiency of 21.35% with 20 dBm saturated output power at 77 GHz.

Original languageEnglish
Title of host publication2021 IEEE International Symposium on Circuits and Systems, ISCAS 2021 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers
Number of pages3
ISBN (Electronic)9781728192017
DOIs
Publication statusPublished - 27 Apr 2021
Event53rd IEEE International Symposium on Circuits and Systems, ISCAS 2021 - VIRTUAL, Daegu, Korea, Republic of
Duration: 22 May 202128 May 2021

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
Volume2021-May
ISSN (Print)0271-4310

Conference

Conference53rd IEEE International Symposium on Circuits and Systems, ISCAS 2021
Country/TerritoryKorea, Republic of
CityDaegu
Period22/05/2128/05/21

Keywords

  • 40nm
  • 77 GHz
  • CMOS
  • Power amplifier
  • Power combiner

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