2～12GHz超宽带带状线定向耦合器的设计  

Design of a 2 ～ 12 GHz Ultra-Wideband Stripline Coupler

作　　者：徐洋[1] 彭龙[1] 左艳[2] 张帅[1] 

机构地区：[1]成都信息工程大学光电技术学院,四川成都610225 [2]南京邮电大学光电工程学院,江苏南京210003

出　　处：《电子科技》2016年第5期16-18,共3页Electronic Science and Technology

基　　金：江苏省普通高校研究生科研创新计划基金资助项目(SJLX-0363)

摘　　要：根据带状线理论,设计了一种新型的带状线定向耦合器。通过将耦合带状线分段处理,根据每段带状线的耦合度,合理地设计每段耦合带状线的物理参数,拓宽了耦合器的工作频带。同时通过优化仿真,以补偿耦合器奇模与偶模之间相速度的差异,并抵消不连续性所带来的寄生参数的影响,从而提高定向耦合器的方向性。在设计过程中,借助Ansoft Designer软件进行初步优化仿真,最终电路版图以Auto Cad格式导入到HFSS中进行进一步验证。A new stripline directional coupler is designed by putting a coupled stripline segmentation processing with physical parameters for each section of the stripline reasonably designed to broaden the working band of coupler.Simulation optimization is performed to compensate for the coupler phase velocity difference between odd and even dies and to offset the influence of the parasitic parameters of the discontinuity for better directivity of the directional coupler. The software Ansoft Designer is employed for initial simulation optimization,and the resulting circuit layout is input in Auto Cad format into the HFSS for further verification.

关 键 词：带状线 耦合器 超宽带 

分 类 号：TN626[电子电信—电路与系统]