Ultrahigh gain gyrotron traveling wave amplifier

被引：136

作者：

Chu, KR ^{[1
]}

Chen, HY

Hung, CL

Chang, TH

Barnett, LR

Chen, SH

Yang, TT

机构：

[1] Natl Tsing Hua Univ, Dept Phys, Hsinchu, Taiwan

[2] Natl Ctr High Performance Comp, Hsinchu, Taiwan

[3] Synchrotron Radiat Res Ctr, Hsinchu, Taiwan

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.81.4760

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Mode competition in the gyrotron traveling wave amplifier is shown to be intricately connected to the interplay between the absolute/convective instabilities, circuit losses, and reflective feedback. Physical origins of spurious oscillations are analyzed and characterized. Fundamental understanding of these processes leads to a device concept which provides zero-drive stability at ultrahigh gain. The scheme was verified in a proof-of-principle experiment in the Ka hand, producing 93 kW saturated peak power at 26.5% efficiency, 70 dB gain, and a 3 dB bandwidth of 3 GHz. [S0031-9007(98)07703-5].

引用

收藏

页码：4760 / 4763

页数：4

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