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

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

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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)
PublisherInstitute of Electrical and Electronics Engineers, Inc.
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

Link(s)

DOI

DOI
Check@CityULib
Link to Scopus https://www.scopus.com/record/display.uri?eid=2-s2.0-84984941780&origin=recordpage
Permanent Link https://scholars.cityu.edu.hk/en/publications/publication(da31ec47-6f36-44d1-9d1d-da0c6a186602).html

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

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Publication fingerprints text

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Doherty Power Ampli... Keyphrases
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Load Modulation Net... Keyphrases
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devices INIS
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modulation INIS
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power amplifiers INIS
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design INIS
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gallium nitrides INIS
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carriers INIS
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power INIS
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efficiency INIS
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Citation Format(s)

[ RIS ] [ BibTeX ]
A broadband three-device Doherty power amplifier based on a modified load modulation network. / Chen, Shichang; Qiao, Pengfei; Wang, Gaofeng et al.
2016 IEEE MTT-S International Microwave Symposium (IMS). Vol. 2016-August Institute of Electrical and Electronics Engineers, Inc., 2016. 7540172 (IEEE MTT-S International Microwave Symposium).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review