Parametric Simulation and Optimization of Cold-test Properties for a 220 GHz Broadband Folded Waveguide Traveling-wave Tube

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	Parametric Simulation and Optimization of Cold-test Properties for a 220 GHz Broadband Folded Waveguide Traveling-wave Tube
	Zheng, Ruilin ; Chen, Xuyuan ; Chen XY(陈旭远)
刊名	http://dx.doi.org/10.1007/s10762-009-9510-x
	2009-09
关键词	VACUUM ELECTRONICS MILLIMETER-WAVE
英文摘要	Characterized with full-metal structure, high output power and broad bandwidth, microfabricated folded waveguide is considered as a robust slow-wave structure for millimeter wave traveling-wave tubes. In this paper, cold-test (without considering the real electron beam) properties were studied and optimized by 3D simulation on slow-wave structure, for designing a 220 GHz folded waveguide traveling-wave tube. The parametric analysis on cold-test properties, i.e., phase velocity, beam-wave interaction impedance and cold circuit attenuation, were conducted in half-period circuit with high frequency structure simulator, assisted by analytical model and equivalent circuit model. Through detailed parametric analyses, interference between specified structural parameters is found on determining beam-wave interaction impedance. A discretized matrix optimization for interaction impedance was effectively carried out to overcome the interference. A range of structural parameters with optimized interaction impedance distributions were obtained. Based on the optimized results, a broadband folded waveguide with cold pass-band of about 80 GHz, flat phase velocity dispersion and fairly high interaction impedance was designed for a 220 GHz central frequency traveling-wave tube. A three-dB bandwidth of 20.5 GHz and a maximum gain of 21.2 dB were predicted by small signal analysis for a 28 mm-long lossy circuit.
语种	英语
出版者	J INFRARED MILLIM TE
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/90411]
专题	萨本栋－已发表论文
推荐引用方式 GB/T 7714	Zheng, Ruilin,Chen, Xuyuan,Chen XY. Parametric Simulation and Optimization of Cold-test Properties for a 220 GHz Broadband Folded Waveguide Traveling-wave Tube[J]. http://dx.doi.org/10.1007/s10762-009-9510-x,2009.
APA	Zheng, Ruilin,Chen, Xuyuan,&陈旭远.(2009).Parametric Simulation and Optimization of Cold-test Properties for a 220 GHz Broadband Folded Waveguide Traveling-wave Tube.http://dx.doi.org/10.1007/s10762-009-9510-x.
MLA	Zheng, Ruilin,et al."Parametric Simulation and Optimization of Cold-test Properties for a 220 GHz Broadband Folded Waveguide Traveling-wave Tube".http://dx.doi.org/10.1007/s10762-009-9510-x (2009).