Novel DC-Biasing Circuits with Arbitrary Harmonic-Control Capability for Compact High-Efficiency Power Amplifiers

Shinichi Tanaxa, Tomoya Oda, Kento Saiki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The next generation mobile communication systems impose challenging performance, size and cost requirements on the power amplifiers. This paper presents novel DC-biasing circuits, which are compact and yet can control the harmonics almost arbitrarily, thereby allowing to save the space for additional harmonic tuning circuit. The proposed circuit consists of a composite right-/left-handed (CRLH) transmission line (TL) stub, of which the size and harmonic-control function can be tuned by modifying the dispersion diagram of the stub line. As a proof of concept, a compact 2-GHz 5-W GaN HEMT class-F PA using the versatile CRLH-TL stubs was fabricated, demonstrating 85% drain efficiency and 76% Dower-added efficiency.

Original languageEnglish
Title of host publication2018 48th European Microwave Conference, EuMC 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages13-16
Number of pages4
ISBN (Electronic)9782874870514
DOIs
Publication statusPublished - 2018 Nov 20
Event48th European Microwave Conference, EuMC 2018 - Madrid, Spain
Duration: 2018 Sep 252018 Sep 27

Publication series

Name2018 48th European Microwave Conference, EuMC 2018

Conference

Conference48th European Microwave Conference, EuMC 2018
Country/TerritorySpain
CityMadrid
Period18/9/2518/9/27

Keywords

  • class-F
  • composite right-/left-handed transmission line
  • harmonic tuning
  • power amplifiers

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Instrumentation
  • Radiation

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