A 2W 9.5-16.5 GHz GaN Power Amplifier with 30% PAE Using Transformer-Based Output Matching Network

Xiao Sun*, Xu Zhu, Yong Wang, Pei Ling Chi, Tao Yang

*Corresponding author for this work

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

1 Scopus citations

Abstract

In this paper, a 9.5-16.5 GHz power amplifier (PA) with power-added efficiency (PAE) of 30% and output power of 2W is proposed in 0.25 µm GaN technology. A two-stage PA is implemented to achieve enough power gain. In order to obtain wide bandwidth at high frequency, a transformer output matching network is proposed, which absorbs the parasitic capacitance of the transistor. Compared to conventional single stage of transformer matching network, the proposed matching network can not only significantly extend matching bandwidth, but also does not add any extra circuit complexity, keeping a high PAE and compact chip size. With this technique, the measured PA produces a saturated output power of 33.1-34.7 dBm over 9.5-16.5 GHz band with 30.1-35.9 % PAE. The large signal gain varies between 11.1-12.7 dB. The chip size is 2.9 mm ×1.2 mm, including bondpads.

Original languageEnglish
Title of host publication2023 IEEE/MTT-S International Microwave Symposium, IMS 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages319-322
Number of pages4
ISBN (Electronic)9798350347647
DOIs
StatePublished - 2023
Event2023 IEEE/MTT-S International Microwave Symposium, IMS 2023 - San Diego, United States
Duration: 11 Jun 202316 Jun 2023

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
Volume2023-June
ISSN (Print)0149-645X

Conference

Conference2023 IEEE/MTT-S International Microwave Symposium, IMS 2023
Country/TerritoryUnited States
CitySan Diego
Period11/06/2316/06/23

Keywords

  • high efficiency
  • power amplifiers
  • transformer

Fingerprint

Dive into the research topics of 'A 2W 9.5-16.5 GHz GaN Power Amplifier with 30% PAE Using Transformer-Based Output Matching Network'. Together they form a unique fingerprint.

Cite this