This kind of switch use the unilateral fin - line as the basic transmission line , the beam lead pin diode of alpha co . ltd is the control element , there is two diodes in each channel and they are welded in circuit in parallel connection 本课题主要研究的是毫米波鳍线pin管单刀双掷开关。该开关采用单侧鳍线作为基本传输线，控制器件选用alpha公司的梁式引线pin二极管，每路使用两只，采用并联形式焊接在电路中。
The difficulty in design microstrip pin sp3t switch is the via hole for grounding . we use both the radial parts and the via hole to get a good result . the fin - line pin switch is fully simulated using full - wave analysis , the parasitic parameter and the circuit assemble need to be considered 微带结构上过孔微波接地效果的不理想,是微带单刀三掷开关的难点,本文采用了扇形的微波接地和过孔直流接地结合起来,较好的解决了这一问题。
In microstrip pin switch design , we use the circuit simulation method , firstly we use full - wave analysis method to extract s matrix of passive components ; and then we use ads to analysis and optimize the entire circuits . the test result shows good agreement of the simulation result 在研究方法上,利用电路分析的方法,由全波分析软件生成无源部分的s参数,然后将其结果导入到电路仿真软件中,实际设计并制作了ka波段微带单刀三掷pin开关,设计结果很好的证明了仿真过程的可行性。
