Mode analysis and design of 0.3-THz Clinotron

doi:10.1088/1674-1056/25/10/108401

Abstract To develop a high-power continuous-wave terahertz source, a Clinotron operating at 0.3 THz is investigated. Based on the analyses of field distribution and coupling impedance, the dispersion characteristic of a rectangular resonator is preliminarily studied. The effective way to select fundamental mode to interact with the electron beam is especially studied. Finally, the structure is optimized by particle-in-cell simulation, and the problems of manufacture tolerance, current density threshold, and heat dissipation during Clinotron's operation are also discussed. The optimum device can work with a good performance under the conditions of 8 kV and 60 mA. With the generation of signal frequency at 315.89 GHz and output power at 12 W on average, this device shows great prospects in the application of terahertz waves.

Keywords: terahertz Clinotron mode selection particle simulation

Received: 24 April 2016
Revised: 31 May 2016
Accepted manuscript online:

PACS:	84.40.Fe	(Microwave tubes (e.g., klystrons, magnetrons, traveling-wave, backward-wave tubes, etc.))
	45.10.Db	(Variational and optimization methods)
	52.65.-y	(Plasma simulation)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 61231003).

Corresponding Authors: Jian-Guo Wang
E-mail: wanguiuc@mail.xjtu.edu.cn

Cite this article:

Shuang Li(李爽), Jian-Guo Wang(王建国), Guang-Qiang Wang(王光强), Peng Zeng(曾鹏), Dong-Yang Wang(王东阳) Mode analysis and design of 0.3-THz Clinotron 2016 Chin. Phys. B 25 108401

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Mode analysis and design of 0.3-THz Clinotron

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