Study on a W-band modified V-shaped microstrip meander-line traveling-wave tube

doi:10.1088/1674-1056/21/6/064210

Abstract The study on a miniaturized, low-voltage, wide-bandwidth, high-efficiency modified V-shaped microstrip meander-line slow-wave structure is presented. This structure is evolved from the original U-shaped microstrip meander-line slow-wave structure, combining the advantages of a traditional microstrip and a rectangular helix. In this paper, simulations of the electromagnetic characteristics and the beam-wave interaction of this structure are carried out. Our study shows that when the design voltage and the current of a sheet electron beam are set to be 4700 V and 100 mA, respectively, this miniature millimeter-wave power amplifier is capable of delivering 160-W output power with a corresponding gain of 37.3 dB and a maximum interaction efficiency of 34% at 97 GHz.

Keywords: modified V-shaped microstrip meander-line millimeter-wave power amplifier beam-wave interaction slow-wave structure

Received: 10 August 2011
Revised: 08 October 2011
Accepted manuscript online:

PACS:	42.60.Da	(Resonators, cavities, amplifiers, arrays, and rings)
	07.57.Hm	(Infrared, submillimeter wave, microwave, and radiowave sources)
	41.20.Jb	(Electromagnetic wave propagation; radiowave propagation)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 60971038) and the Fundamental Research Funds for the Central Universities (Grant No. ZYGX2009Z003).

Corresponding Authors: Wei Yan-Yu
E-mail: yywei@uestc.edu.cn

Cite this article:

Shen Fei(沈飞), Wei Yan-Yu(魏彦玉), Xu Xiong(许雄), Yin Hai-Rong(殷海荣), Gong Yu-Bin(宫玉彬), and Wang Wen-Xiang(王文祥) Study on a W-band modified V-shaped microstrip meander-line traveling-wave tube 2012 Chin. Phys. B 21 064210

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Study on a W-band modified V-shaped microstrip meander-line traveling-wave tube

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