The improvement of efficiency in L-band 10W GaN HEMT power amplifier by harmonic injection

Kenichi Fujii, Kazuma Terajima, Takuji Sonoda, Tadashi Takagi, Suguru Kameda, Noriharu Suematsu, Kazuo Tsubouchi

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

This paper presents the improvement of efficiency of power amplifiers by 2nd and 3rd harmonics injection with a newly developed triplexer. An L-band 10W GaN HEMT PA with input and output triplexers have been fabricated. The dependence of injection power level on the improvement of efficiency from both input and output injection is studied. The 2nd harmonics injection delivers higher efficiency improvement than that of 3rd harmonics injection. The best injection power of 2nd harmonics for improvement of extended power added efficiency (including additionally harmonics injection power as input power) is 20.5dBm and 26.5dBm for input and output injection, respectively. The PA has achieved the excellent improvement of 10.6% by both input and output 2nd harmonics injection simultaneously. The maximum extended power added efficiency of 64.7% with an output power of 39.9dBm is obtained at 1.5GHz.

本文言語English
ホスト出版物のタイトル2014 Asia-Pacific Microwave Conference Proceedings, APMC 2014
出版社Institute of Electrical and Electronics Engineers Inc.
ページ786-788
ページ数3
ISBN(電子版)9784902339314
出版ステータスPublished - 2014 3 25
イベント2014 Asia-Pacific Microwave Conference, APMC 2014 - Sendai, Japan
継続期間: 2014 11 42014 11 7

出版物シリーズ

名前2014 Asia-Pacific Microwave Conference Proceedings, APMC 2014

Other

Other2014 Asia-Pacific Microwave Conference, APMC 2014
国/地域Japan
CitySendai
Period14/11/414/11/7

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信
  • ハードウェアとアーキテクチャ
  • 電子工学および電気工学

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