【摘要】 针对宽带在线功率监测应用,设计了一种宽带的多节微带定向耦合器。采用微带平行耦合线的奇偶模理论,分析了多节定向耦合器的设计方案。结合遗传算法,利用HFSS仿真软件对微带耦合线进行优化,设计了一个工作频率在450~4 000 MHz的宽带微带定向耦合器。仿真和实测结果吻合良好,验证了该宽带耦合嚣设计方法的有效性。更多还原

【Abstract】 A design of wideband directional couplers was proposed for wideband online power monitoring.Based on microstrip coupled line theory,the method of muti-elemenl coupler designing was analyzed.With genetic algorithm,a microstrip coupler is optimized in HFSS software and manufacture.The simulated and measured results show that the proposed wideband microstrip coupler will be feasible for wideband online power monitoring.更多还原