Demonstration of a Four-Beam Integrated Travelling Wave Tube in W-Band

被引：1

作者：

Ji, Huanli ^{[1
]}

Yang, Jinsheng ^{[1
]}

Sun, Ran ^{[1
]}

Mu, Hanshuo ^{[1
]}

Cai, Jun ^{[1
]}

Pan, Pan ^{[1
]}

Feng, Jinjun ^{[1
]}

机构：

[1] Beijing Vacuum Elect Res Inst BVERI, Natl Key Lab Sci & Technol Vacuum Elect, Beijing 100015, Peoples R China

来源：

IEEE ELECTRON DEVICE LETTERS | 2025年 / 46卷 / 01期

关键词：

Electron beams; Saturation magnetization; Power generation; Magnetic tunneling; Gain; Radio frequency; Traveling wave tubes; Focusing; Electron guns; Vacuum electronics; W band; integrated traveling wave tube; one-dimensional electron beam array; planar integrated periodic permanent magnet; stable transport;

D O I：

10.1109/LED.2024.3495678

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：

This letter presents an investigation into a W-band four-beam planar-integrated traveling wave tube (TWT). Building on the design concept of the planar integrated TWT, this research focuses on the high-efficiency circuit that utilizes a bending FWG, verified through the fabrication of a tube employing a conventional PPM system. Further research on the four-beam TWT utilizing the proposed planar integrated periodic permanent magnet (PIPPM) led to its development, assembly, and testing. Experiment results achieved over 85% transmission efficiency through a 120 mm long tunnel, validating this beam optical system configuration. The device attained a maximum saturated output power of 10 W and a saturated gain of 23 dB, with a bandwidth of 6 GHz per channel at an operating voltage of 12.6 kV. The four-beam TWT demonstrates consistent electrical performance and offers a novel solution for short-wavelength millimeter-wave TWT active phased arrays applications.

引用

页码：96 / 99

页数：4

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