Design and performance of traveling-wave tubes using field emitter array cathodes

被引：39

作者：

Makishima, H

Miyano, S

Imura, H

Matsuoka, J

Takemura, H

Okamoto, A

机构：

[1] NEC Corp Ltd, Elect Component Dev Div, Sagamihara, Kanagawa 2291198, Japan

[2] NEC Corp Ltd, Microwave Tube Div, Sagamihara, Kanagawa 2291198, Japan

[3] NEC Corp Ltd, Silicon Syst Res Labs, Sagamihara, Kanagawa 2291198, Japan

来源：

APPLIED SURFACE SCIENCE | 1999年 / 146卷 / 1-4期

关键词：

microwave tube; traveling-wave tube (TWT); field emitter array (FEA); electron gun; cathode; current limiter;

D O I：

10.1016/S0169-4332(99)00061-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

An X-band miniaturized traveling-wave tube (TWT) using a Spindt field emitter array (FEA) cathode was built. The FEA cathode has 542,000 molybdenum tips in an emission area 1.2 nun in diameter. It also has a trench current-limiter that shows low resistance in normal operation.A saturation output power of 28.2 W1 a saturation power gain of 40 dB, and a beam transmission ratio of more than 99.3% have been achieved at a frequency of 11.5 GHz under 3% duty ratio. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：230 / 233

页数：4