一种宽带弱耦合定向耦合器的研制  

A Broadband Weak Coupling Directional Coupler

作　　者：吴佳倩 邓友富[1] WU Jia-qian;DENG You-fu(No.36 Research Institute of CETC,Jiaxing Zhejiang 314033,China)

机构地区：[1]中国电子科技集团公司第三十六研究所,浙江嘉兴314033

出　　处：《通信对抗》2020年第3期46-48,共3页Communication Countermeasures

摘　　要：从定向耦合器的基本原理出发,设计了一款工作频段为2GHz~6GHz的弱耦合定向耦合器,针对定向耦合器断面的特性阻抗以及如何改善耦合器耦合方向性、隔离度和拓展带宽等问题对结构进行优化设计,并加工出了实物。实物测试结果表明,该定向耦合器符合OFDMA等微波射频通信系统对于定向耦合器耦合度为47dB±0.5dB,插入损耗低于O.lldB和输入驻波比小于1.15的指标要求。Based on the basic principle of the directional coupler,this paper designs a weakly coupled directional coupler with a working frequency of 2—6GHz,according to the characteristic impedance of the directional coupler’s section and how to improve the coupler’s coupling directivity,isolation,and bandwidth,etc.,the structure is optimized and the physical processing is developed.Physical test results show that the directional coupler of this model structure meets the requirements of OFDMA and other microwave radio frequency communication systems for directional couplers with a coupling degree of 47dB±0.5dB,insertion loss below O.lldB,and input standing wave radio less than 1.15.

关 键 词：弱耦合 定向耦合器 S参数 驻波比 

分 类 号：TN622[电子电信—电路与系统]