无线电工程2016，Vol.46Issue(10)：54-57,4.DOI:10.3969/j.issn.1003-3106.2016.10.13
基于Turnstile结构的超宽带正交模耦合器研究
Study of a Turnstile Ultra Wideband Waveguide Ortho-mode Transducer
摘要
Abstract
Ortho⁃mode transducer ( OMT ) is a very important passive component in a reflector antenna feed system. The bandwidth of the ortho⁃mode transducer determines the bandwidth of the antenna and its performance directly affects the performance of the receiver.In order to meet the need of Q band (30~50 GHz) cryogenic receiver for Xinjiang Astronomical Observatory,the OMT based on Turnstile structure is described,which has public port based circular waveguide and two branch ports based on standard rec⁃tangular waveguide.The ortho⁃mode transducer is designed and optimized for the Q band (30~50 GHz) by electromagnetic simulation software HFSS.Simulation results indicate the return loss is better than -22 dB,the orthogonal isolation is better than -46 dB within 50% relative bandwidth.The study provides theoretical design basis for further research of millimeter wave broadband OMT.关键词
正交模耦合器/超宽带/无源器件Key words
ortho-mode transducer/ultra wideband/passive component分类
信息技术与安全科学引用本文复制引用
陈卯蒸,宁云炜,马军..基于Turnstile结构的超宽带正交模耦合器研究[J].无线电工程,2016,46(10):54-57,4.基金项目
国家重点基础研究发展计划基金资助项目（2015CB857100）；国家自然科学基金资助项目（ U1431230）；“西部之光”后续支持项目（2015－HXZC－01）。 （）
