Effective AM-PM cancellation with body bias for 5G CMOS power amplifier design in 22nm FD-SOI

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

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

2 Scopus citations

Abstract

Novel linearity enhancement using body bias tuning for 24-28 GHz CMOS SOI power amplifier (PA) design is reported. The differential PA is designed, laid out, and taped out in an advanced 22nm fully-depleted silicon-on-insulator (FD-SOI) technology, which utilizes stacked FETs, digitally-controlled neutralization capacitors, interstage matching and output matching capacitors with on-chip baluns to cover 24-28 GHz for potential 5G applications. Post-layout SPICE simulations show the AM-PM distortion at Pout,1dB can be reduced to only < 0.1° by body bias tuning of the 2nd stage FETs alone, with power-added-efficiency (PAE) at Pout,1dB at 24.1%/17.5% with high S21 =26.5/22.1 dB at 24GHz/28GHz. Using 64-QAM 250 MHz modulated input signal, this PA design has also achieved an ACLR1 of ~ -24.5/-28.5 dBc at Pout = 11.7/9.5 dBm in post-layout simulation at 28 GHz, and with the smallest core PA die area in the literature. We believe this is the 1st report of very effective AM-PM cancellation for mm-Wave CMOS SOI PA design using positive body biasing.

Original languageEnglish
Title of host publication2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728103976
DOIs
StatePublished - 2019
Event2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Sapporo, Japan
Duration: May 26 2019May 29 2019

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
Volume2019-May
ISSN (Print)0271-4310

Conference

Conference2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019
CountryJapan
CitySapporo
Period05/26/1905/29/19

Keywords

  • 5G
  • AM-AM
  • AM-PM
  • Body bias
  • CMOS power amplifier (PA)
  • FD-SOI
  • Millimeter-wave
  • Reconfigurable PA

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