Multi-mode coupling analysis of a sub-terahertz band planar corrugated Bragg reflector

doi:10.1088/1674-1056/24/11/118403

中国物理B ›› 2015, Vol. 24 ›› Issue (11): 118403-118403.doi: 10.1088/1674-1056/24/11/118403

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇下一篇

Multi-mode coupling analysis of a sub-terahertz band planar corrugated Bragg reflector

刘国, 罗勇, 王建勋, 舒国响

School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China

收稿日期:2015-05-06 修回日期:2015-07-04 出版日期:2015-11-05 发布日期:2015-11-05
通讯作者: Liu Guo E-mail:liuguo.uestc@gmail.com
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. G0501040161101040).

Multi-mode coupling analysis of a sub-terahertz band planar corrugated Bragg reflector

Liu Guo (刘国), Luo Yong (罗勇), Wang Jian-Xun (王建勋), Shu Guo-Xiang (舒国响)

School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China

Received:2015-05-06 Revised:2015-07-04 Online:2015-11-05 Published:2015-11-05
Contact: Liu Guo E-mail:liuguo.uestc@gmail.com
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. G0501040161101040).

摘要/Abstract

摘要： Planar Bragg reflector operating in the sub-terahertz wavelength installed at the upstream end of a sheet beam backward wave oscillator (BWO) is very promising to minimize the whole circuit structure and make it more compact. In this paper, a sub-terahertz wavelength (0.18-0.22 THz) tunable planar Bragg reflector is numerically analyzed by using multi-mode coupling theory (MCT). The operating mode TE₁₀ and dominant coupling mode TE₀₁ are mainly considered in this theory. Reflection and transmission performance of the reflector are demonstrated in detail and the results, in excellent agreement with the theoretical analysis and simulation, are also presented in this paper. Self-and cross-coupling coefficients between these two modes are presented as well. The reflector behaviors with different Bragg dimensions are discussed and analyzed in the 0.16-0.22 THz range. The analysis in this paper can be of benefit to the design and fabrication of the whole BWO circuit.

关键词: planar Bragg reflector, multi-mode coupling theory, sub-terahertz BWO

Abstract: Planar Bragg reflector operating in the sub-terahertz wavelength installed at the upstream end of a sheet beam backward wave oscillator (BWO) is very promising to minimize the whole circuit structure and make it more compact. In this paper, a sub-terahertz wavelength (0.18-0.22 THz) tunable planar Bragg reflector is numerically analyzed by using multi-mode coupling theory (MCT). The operating mode TE₁₀ and dominant coupling mode TE₀₁ are mainly considered in this theory. Reflection and transmission performance of the reflector are demonstrated in detail and the results, in excellent agreement with the theoretical analysis and simulation, are also presented in this paper. Self-and cross-coupling coefficients between these two modes are presented as well. The reflector behaviors with different Bragg dimensions are discussed and analyzed in the 0.16-0.22 THz range. The analysis in this paper can be of benefit to the design and fabrication of the whole BWO circuit.

Key words: planar Bragg reflector, multi-mode coupling theory, sub-terahertz BWO

中图分类号: (Microwave tubes (e.g., klystrons, magnetrons, traveling-wave, backward-wave tubes, etc.))

84.40.Fe

84.40.Dc (Microwave circuits) 84.40.Az (Waveguides, transmission lines, striplines)

刘国, 罗勇, 王建勋, 舒国响. Multi-mode coupling analysis of a sub-terahertz band planar corrugated Bragg reflector[J]. 中国物理B, 2015, 24(11): 118403-118403.

Liu Guo (刘国), Luo Yong (罗勇), Wang Jian-Xun (王建勋), Shu Guo-Xiang (舒国响). Multi-mode coupling analysis of a sub-terahertz band planar corrugated Bragg reflector[J]. Chin. Phys. B, 2015, 24(11): 118403-118403.

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Multi-mode coupling analysis of a sub-terahertz band planar corrugated Bragg reflector

Multi-mode coupling analysis of a sub-terahertz band planar corrugated Bragg reflector

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