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

被引：2
|
作者：
Qin Long [1 ]
Zhao Qing [1 ]
Liu Shuzhang [1 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Phys Elect, Chengdu 610054, Peoples R China
来源：
PLASMA SCIENCE & TECHNOLOGY | 2014年 / 16卷 / 07期
基金：
中国国家自然科学基金;
关键词：
ECRH; power monitoring; aperture-coupling; 140; GHz; transmission line; SYSTEM; HL-2A;
D O I：
10.1088/1009-0630/16/7/14
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
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 17dB. The results show that such a coupler is a viable tool for power measurement in high-power transmission systems.
引用
收藏
页码：712 / 715
页数：4
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