一种紧凑型Ku频段正交模耦合器的设计  

Design of orthomode transducer in Ku-band with compact size

作　　者：李东超[1] 何绍林[1] 刘玉龙[1] LI Dongchao;HE Shaolin;LIU Yulong(China Research Institute of Radiowave Propagation,Qingdao 266107,China)

机构地区：[1]中国电波传播研究所,青岛266107

出　　处：《电波科学学报》2018年第4期504-508,共5页Chinese Journal of Radio Science

摘　　要：设计了一种结构极为紧凑的Ku频段正交模耦合器(orthomode transducer,OMT),器件最大尺寸36mm,公共端口为方波导,适用于复杂的多馈电网络集成系统.通过一系列阶梯变换以及侧壁缝隙耦合形式实现了电磁波的极化过滤,两个输出端口分别对应一种极化波.加工了耦合器实物并进行了测试,实测15%频带范围内端口驻波小于1.6,两端口隔离度小于-50dB,仿真和实测数据一致.A very compact orthomode transducer design in Ku-band is established complex multi-feed network integration system, the common port is square waveguid , which is suited for e and the maximum size is 36 mm. The polarization filtering of electromagnetic wave is realized through a series of ladder transformation and side wall gap coupling. The two output ports correspond to one kind of polarization wave respectively. The coupler is processed and tested. The measured port standing wave in the 15% band range is less than 1.6, the isolation degree of the two ports is less than -50 dB, and the measured result is agree with the simulation result.

关 键 词：正交模耦合器 紧凑型 阶梯变换 缝隙耦合 极化过滤 

分 类 号：TN801[电子电信—信息与通信工程]