环形耦合器的设计与优化

The Design and Optimization of Ring Coupler

基于微带半波矩形开环谐振器具有的特性,结合传统耦合技术和微波设计软件,设计了窄带带通滤波器.设计中包括提出修正后的基板有效介电常数计算公式、耦合间隙的计算、带通滤波器的设计以及分析拐角对滤波器性能的影响,并提出了优化方法.实际仿真表明,基于交叉耦合的技术配合耦合间隙查询使得滤波器设计简单明了.

A narrow band pass filter is designed based on microstrip half-wave rectangular open-loop resonator characteristics,combining traditional coupling technology and microwave design software.This design includes how to calculate resonance frequency of resonator,the coupling gap and the corner effect affects on the filter performance.Actual simulation results show that the cross-couplingbased technology and the coupling gap query to make the filter design is simple.