A High-Linearity GaN-on-Si Power Amplifier for 2.4-GHz WLAN Applications

Chinchun Meng*, Fang Yu Lei, Chieh Lee, Feng Chuan Lin, Yu Lin Kuo

*Corresponding author for this work

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

Abstract

The high impedance of a GaN device when operating at high voltage and low current is more resilient to the loss caused by the on-chip inductor and makes a fully integrated GaN-on-Si power amplifier possible. This paper demonstrates a 2.4 GHz two-stage power amplifier for WLAN applications using low-cost GaN-on-Si technology with a high resistivity silicon substrate and through substrate vias. The high-linearity power amplifier at a 15 V supply voltage shows 22 dBm output power with -35 dB EVM at 2.5 GHz when tested with 802.11ac VHT40 MCS9 signals. The quiescent currents are 13 mA and 27 mA while the operating currents at 22 dBm output power with -35 dB EVM are 26 mA and 65 mA for the driver stage and power stage, respectively.

Original languageEnglish
Title of host publication2023 Asia-Pacific Microwave Conference, APMC 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages482-484
Number of pages3
ISBN (Electronic)9781665494182
DOIs
StatePublished - 2023
Event31st Asia-Pacific Microwave Conference, APMC 2023 - Taipei, Taiwan
Duration: 5 Dec 20238 Dec 2023

Publication series

NameAsia-Pacific Microwave Conference Proceedings, APMC
ISSN (Electronic)2690-3946

Conference

Conference31st Asia-Pacific Microwave Conference, APMC 2023
Country/TerritoryTaiwan
CityTaipei
Period5/12/238/12/23

Keywords

  • 802.11ac
  • GaN
  • GaN-on-Si
  • GaN-on-SiC
  • HEMT
  • high resistivity
  • high voltage
  • power amplifier
  • WLAN

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