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Design of Millimeter-Wave High-Power Power Monitoring Miter Bend Based on Aperture-Coupling

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【Author】 QIN Long;ZHAO Qing;LIU Shuzhang;School of Physical Electronics, University of Electronic Science and Technology of China;

【机构】 School of Physical Electronics University of Electronic Science and Technology of China；

【摘要】 A directional coupler in a miter bend was designed to monitor the microwave power of the transmission line in an electron cyclotron resonance heating(ECRH) system. It is based on aperture-coupling theory and simulation of an electromagnetic(EM) field to design and optimize the 140 GHz high-power directional coupler. In addition, we simulated the double-aperture directional coupler by using three-dimensional(3D) EM simulation software, in which the central frequency is 140 GHz, coupling factor is about –70 dB, and directivity is greater than 17 dB. The results show that such a coupler is a viable tool for power measurement in high-power transmission systems.更多还原

【Abstract】 A directional coupler in a miter bend was designed to monitor the microwave power of the transmission line in an electron cyclotron resonance heating(ECRH) system. It is based on aperture-coupling theory and simulation of an electromagnetic(EM) field to design and optimize the 140 GHz high-power directional coupler. In addition, we simulated the double-aperture directional coupler by using three-dimensional(3D) EM simulation software, in which the central frequency is 140 GHz, coupling factor is about –70 dB, and directivity is greater than 17 dB. The results show that such a coupler is a viable tool for power measurement in high-power transmission systems.更多还原

【关键词】 ECRH； power monitoring； aperture-coupling； 140 GHz； transmission line；
【Key words】 ECRH； power monitoring； aperture-coupling； 140 GHz； transmission line；

【基金】 supported by International S&T Cooperation Program of China(No.2011DFA63190);National Natural Science Foundation of China(No.11275045);the International Cooperation Plan Program of Sichuan Province,China(No.M1701040113HH0001)

【文献出处】 Plasma Science and Technology ,等离子体科学和技术(英文版) , 编辑部邮箱 ,2014年07期

【分类号】TN622
【下载频次】34

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