The Improvement of Efficiency in L-band 10W GaN HEMT Power Amplifier by Harmonic Injection

被引：0

作者：

Fujii, Kenichi ^{[1
]}

Terajima, Kazuma ^{[1
]}

Sonoda, Takuji ^{[1
]}

Takagi, Tadashi ^{[2
]}

Kameda, Suguru ^{[2
]}

Suematsu, Noriharu ^{[2
]}

Tsubouchi, Kazuo ^{[2
]}

机构：

[1] Wave Technol Inc, 3-13-21 Kushiro, Kawanishi, Hyogo 6660024, Japan

[2] Tohoku Univ, Elect Commun Res Inst, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan

来源：

2014 ASIA-PACIFIC MICROWAVE CONFERENCE (APMC) | 2014年

关键词：

High power amplifier; harmonics injection; GaN HEMT; Efficiency improvement;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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.

引用

页码：786 / 788

页数：3

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