A broadband three-device Doherty power amplifier based on a modified load modulation network

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review

11 Scopus Citations
View graph of relations

Author(s)

  • Shichang Chen
  • Pengfei Qiao
  • Gaofeng Wang
  • Zhiqun Cheng
  • Quan Xue

Related Research Unit(s)

Detail(s)

Original languageEnglish
Title of host publication2016 IEEE MTT-S International Microwave Symposium (IMS)
PublisherIEEE
Volume2016-August
ISBN (Print)9781509006984
Publication statusPublished - 9 Aug 2016

Publication series

NameIEEE MTT-S International Microwave Symposium
PublisherIEEE
ISSN (Print)0149-645X

Conference

Title2016 IEEE MTT-S International Microwave Symposium, IMS 2016
PlaceUnited States
CitySan Francisco
Period22 - 27 May 2016

Abstract

This paper proposes a broadband three-device Doherty power amplifier design. A new load modulation network with a shunt quarter-wavelength (λ/4) short stub is introduced for bandwidth extension. Comprehensive analysis of the proposed configuration is given to illustrate the operational principle. For demonstration purpose, a twin-peaking single-carrier Doherty amplifier prototype is devised based on three identical 10W GaN HEMTs. Measurement results show that at least 40% drain efficiency is achieved at 8-dB back-off power, from 2.0 to 2.6 GHz.

Research Area(s)

  • Broadband, Doherty amplifier, efficiency, load modulation network, three-device

Citation Format(s)

A broadband three-device Doherty power amplifier based on a modified load modulation network. / Chen, Shichang; Qiao, Pengfei; Wang, Gaofeng; Cheng, Zhiqun; Xue, Quan.

2016 IEEE MTT-S International Microwave Symposium (IMS). Vol. 2016-August IEEE, 2016. 7540172 (IEEE MTT-S International Microwave Symposium).

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review