Broadband Millimeter-Wave 5G CMOS Power Amplifiers with High Efficiency at Power Backoff and ESD-Protection in 22nm FD-SOI

Jill Mayeda, Donald Y.C. Lie, Jerry Lopez

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

Abstract

Several broadband medium-power millimeter-wave power amplifiers (mm-Wave PAs) are designed using GlobalFoundries' 22-nm fully-depleted silicon on insulator (FD-SOI) CMOS technology. A fixed-biased PA is designed, which achieves max. power-added-efficiency (PAE) = 36.7%, PAE@P1dB = 14.1%, and PSAT of 17.2 dBm at 24 GHz according to post-layout parasitics extracted (PEX) simulations. An adaptive biasing circuit is then added to the fixed-bias PA to improve PAE at power backoff, where it achieves similar performance in PEX simulations in bandwidth (BW), max. PAE, P1dB, and PSAT; however, its PAE@P1dB is greatly improved to 29.2%. PAE@P1dB is improved across the full 20 - 40 GHz frequency band. In addition, two different ESD protection designs are studied to investigate the degradation of PA performance due to ESD diodes. With absolute 3-dB BW of ~80%, high max. PAE and PAE@P1dB, and the smallest PA core size compared with literature, the adaptive biased CMOS PA may be attractive for multiband mm-Wave 5G and other broadband mm-Wave applications.

Original languageEnglish
Title of host publication2021 IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2021 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages899-902
Number of pages4
ISBN (Electronic)9781665424615
DOIs
StatePublished - Aug 9 2021
Event2021 IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2021 - Virtual, East Lansing, United States
Duration: Aug 9 2021Aug 11 2021

Publication series

NameMidwest Symposium on Circuits and Systems
Volume2021-August
ISSN (Print)1548-3746

Conference

Conference2021 IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2021
Country/TerritoryUnited States
CityVirtual, East Lansing
Period08/9/2108/11/21

Keywords

  • 5G
  • Adaptive Biasing
  • Broadband 5G Power Amplifier (PA)
  • CMOS SOI
  • FR2
  • Millimeter-Wave (mm-Wave)
  • Power Backoff
  • Power-Added Efficiency (PAE)

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