C频段正交模耦合器的设计  

Design of Ortho-mode Transducer in C-band

作　　者：张明轩 Zhang Mingxuan(No.081 Electronic Group Sichuan Liyuan Electronic Co.,Ltd.,Guangyuan 628017,China)

机构地区：[1]零八一电子集团四川力源电子有限公司,四川广元628017

出　　处：《兵工自动化》2025年第2期66-68,共3页Ordnance Industry Automation

摘　　要：针对结构形式相对复杂、设计较为繁琐、调试困难等问题,研制一款C频段通信系统适用的正交模式耦合器(ortho-mode transducer,OMT)。借助正交波导间的隔离特性并通过选取合适的波导口径大小,提高5.4~5.7 GHz频带内的收发隔离度。制作原理样机并进行测试,结果表明:在5.4~5.7GHz频段内,直通端口的驻波比小于1.10,耦合端口的驻波比小于等于1.15,收发隔离度小于-57.5 dB,证明该设计有效且满足C频段天馈设备的要求。An ortho-mode transducer(OMT)suitable for C-band communication system is developed to solve the problems of complex structure,complicated design and difficult debugging.The transmitter-receiver isolation in the 5.4 to 5.7 GHz frequency band is improved by using the quarantine characteristics between orthogonal waveguides and selecting the appropriate waveguide aperture size.The prototype is made and tested,and the results show that the VSWR of the straight-through port is less than 1.10,the VSWR of the coupling port is less than or equal to 1.15,and the transmit-receive isolation is less than-57.5 dB in the 5.4 to 5.7 GHz band,which proves that the design is effective and meets the requirements of C-band antenna and feeder equipment.

关 键 词：OMT C频段 隔离度 

分 类 号：TN914[电子电信—通信与信息系统]