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

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...

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Bibliographic Details
Published in:Chinese physics B 2012-06, Vol.21 (6), p.239-244
Main Author: 沈飞 魏彦玉 许雄 段海荣 宫玉彬 王文祥
Format: Article
Language:English
Subjects:
Amplification
Electric potential
Evolution
Gain
Miniature
Noise levels
Simulation
Traveling wave tubes
Voltage
功率放大器
微带
慢波结构
折线
改性
波段
行波管
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Summary: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.
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/21/6/064210