A Watt level, 5-7GHz all digital polar TX based on 3.3V switched capacitor digital PA in 16nm Fin-FET for Wi-Fi7 applications

Naor R. Shay*, Elad Solomon, Limor Zohar, Assaf Ben-Bassat, Eran Socher, Ofir Degani

*Corresponding author for this work

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

Abstract

This work presents a fully integrated 5-7GHz all digital polar transmitter (DPTX) capable of supporting 320M/4096-QAM (MCS13) OFMD modulation for WiFi 7 applications in 16-nm Fin-FET CMOS technology. The DPTX is based on a novel transistor stacking with capacitive feedback topology, allowing a switch capacitor digital power amplifier (SC-DPA) to work directly from 3.3V supply. The DPA demonstrates a maximum power (Pmax)/power efficiency (PE) of 30.15dBm/34.7% at 5.2GHz. An error vector magnitude (EVM)/power consumption of -38dB/830mW is measured at 6.1GHz and 9-dB backoff (dBBO) from Pmax, thus meeting MCS13 4096-QAM OFDM Wi-Fi7 requirement.

Original languageEnglish
Title of host publication2024 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2024
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages255-258
Number of pages4
ISBN (Electronic)9798350359473
DOIs
StatePublished - 2024
Event2024 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2024 - Washington, United States
Duration: 16 Jun 202418 Jun 2024

Publication series

NameDigest of Papers - IEEE Radio Frequency Integrated Circuits Symposium
ISSN (Print)1529-2517

Conference

Conference2024 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2024
Country/TerritoryUnited States
CityWashington
Period16/06/2418/06/24

Keywords

  • DTX
  • Digital Power Amplifier
  • WiFi-7

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