H- and E-Plane Loaded Slow Wave Structure for W-Band TWT

被引：9
作者：
Billa, Laxma R. [1 ,2 ]
Akram, M. Nadeem [1 ]
Paoloni, Claudio [2 ]
Chen, Xuyuan [1 ]
机构：
[1] Univ South Eastern Norway, Dept Microsyst, N-3184 Borre, Norway
[2] Univ Lancaster, Dept Engn, Lancaster LA1 4YW, England
来源：
IEEE TRANSACTIONS ON ELECTRON DEVICES | 2020年 / 67卷 / 01期
关键词：
Millimeter-wave; slow wave structure (SWS); traveling wave tube (TWT); W-band power amplifier; DESIGN;
D O I：
10.1109/TED.2019.2955825
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：
Sheet beam vacuum electron tubes are an attractive solution for high-power sources or amplifiers at millimeter-waves. In this article, a novel W-band slow wave structure (SWS) for traveling wave tube (TWT) amplifiers supporting a sheet beam is proposed. The SWS is based on a rectangular waveguide with H- and E-plane loaded (HEL) metal corrugations. A test structure of the proposed HEL SWS with purposely designed input and output couplers was built in the frequency range of 91-98 GHz (W-band). The measured scattering-parameters agree well with the simulations showing S-11 < - 15 dB over 10-GHz bandwidth. A TWT was designed and simulated with the HEL SWS. It shows very good gain-bandwidth performance. The SWS is easy to manufacture by low-cost computer numerical controlled (CNC)-milling. The results demonstrated that the HEL SWS is a very good solution to build high-power, wideband millimeter-wave TWTs for a wide range of applications that need high power in a broad frequency range.
引用
收藏
页码：309 / 313
页数：5
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