W波段双脊过渡型波导正交器设计  

Design of a W Band Orthomode Transducer Based on the Ridged Waveguide Connection

作　　者：覃律[1] 杨欢 刘兆明[1] 王海花[1] Qin Lv;Yang Huan;Liu Zhaoming;Wang Haihua(No.39 Research Institute of CETC, Xi 'an 710065 China)

机构地区：[1]中国电子科技集团公司第39研究所,西安710065

出　　处：《测控与通信》2019年第2期1-4,26,共5页

摘　　要：基于双脊过渡结构设计1款应用于110m口径的射电望远镜接收机系统的W波段波导正交器(OMT)。该OMT使用电脑数控机床加工,实测显示OMT在75GHz^110GHz内回波损耗≤-18.9dB,端口隔离度≤-42.1dB,实测结果与仿真基本吻合。这种结构的OMT装配简单、调试方便,适合量产。A W band double-ridge waveguide orthomode transducer (OMT ) has been designed for a New 110m Radio Telescope Receive. This design facilitates the fabrication of the OMT using split blocks machined on a CNC ( computer numerical control) machine. The OMT shows a return loss of better than 18.9 dB, a polarization isolation of better than 42.1 dB across the 75.110 GHz. The measured results of the compact OMT meet the design requirements. And the OMT can be simple structure, easy to debug and mass production.

关 键 词：宽带 正交模耦合器 双脊 射电望远镜 W波段 

分 类 号：TN820[电子电信—信息与通信工程]