An Open Rectangular Waveguide Grating for Millimeter-Wave Traveling-Wave Tubes

doi:10.1088/0256-307X/33/9/090701

Chin. Phys. Lett.

2016, Vol. 33

Issue (09): 090701 DOI: 10.1088/0256-307X/33/9/090701

GENERAL

An Open Rectangular Waveguide Grating for Millimeter-Wave Traveling-Wave Tubes

Ming-Liang Liao^1,2, Yan-Yu Wei^1**, Hai-Long Wang^1,2, Yu Huang⁴, Jin Xu¹, Yang Liu^1,2, Guo Guo¹, Xin-Jian Niu¹, Yu-Bin Gong¹, Gun-Sik Park³

¹National Key Laboratory of High Power Vacuum Electronics, School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054
²Southwest China Research Institute of Electronic Equipment (CETC 29), Chengdu 610036
³Center for THz-Bio Application Systems, Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea
⁴Engneering and Technical College, Chendu University of Technology, Leshan 614007

Cite this article:

Ming-Liang Liao, Yan-Yu Wei, Hai-Long Wang et al 2016 Chin. Phys. Lett. 33 090701

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Abstract Millimeter-wave traveling-wave tube (TWT) prevails nowadays as the amplifier for radar, communication and electronic countermeasures. The rectangular waveguide grating is a promising all-metal interaction circuit for the millimeter-wave TWT with advantages of high power capacity, fine heat dissipation, scalability to smaller dimensions for shorter wavelengths, compact structure and robust performance. Compared with the traditional closed structure, the open rectangular waveguide grating (ORWG) has wider bandwidth, lower cut-off frequency, and higher machining precision for higher working frequencies due to the open transverse. It is a potential structure that can work in the millimeter wave and even Terahertz band. The rf characteristics including dispersion and interaction impedance are investigated by both theoretic calculation and software simulation. The influences of the structure parameters are also discussed and compared, and the theoretical results agree well with the simulation results. Based on the study, the ORWG will favor the design of a broadband and high-power millimeter-wave TWT.

Received: 06 April 2016 Published: 30 September 2016

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

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https://cpl.iphy.ac.cn/10.1088/0256-307X/33/9/090701 OR https://cpl.iphy.ac.cn/Y2016/V33/I09/090701

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Articles by authors
	Ming-Liang Liao
	Yan-Yu Wei
	Hai-Long Wang
	Yu Huang
	Jin Xu
	Yang Liu
	Guo Guo
	Xin-Jian Niu
	Yu-Bin Gong
	Gun-Sik Park

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