【作者】 张江涛； 侯建强； 朱满座；

【Author】 Zhang Jiangtao;Hou Jianqiang;Zhu Manzuo;School of Electronic Engineering,Xidian University;

【机构】 西安电子科技大学电子工程学院；

【摘要】 本文设计了一种K_u波段的波导探针-微带过渡结构,为提高转换性能和带宽,采用二阶λ_g/4阻抗变换结构来实现50Ω微带线与微带探针之间的阻抗匹配,与一阶阻抗变换相比,本设计能够有效的改善驻波系数及增大带宽。利用高频仿真软件HFSS13及电路仿真软件ADS2008来设计和仿真计算,并对影响该结构过渡性能的几个主要因素进行优化和分析。该结构具有结构简单,密封性好,体积小,易于加工及可靠性高等优点。本文所设计的转换结构工作于Ku波段,中心频率14GHz,带宽3.6GHz,回波损耗小于-20dB,插入损耗大于-0.1dB,VSWR(电压驻波比)小于1.22。更多还原

【Abstract】 This paper introduces the design of the transition structure of the waveguide- probe-microstrip for an K_u band.In order to improve the translation performance and bandwidth,the two order λ_g/4 impedance matching transformation structure is used to achieve the impedance matching between the 50Ω microstrip line and microstrip probe,which can effectively improve the standing wave coefficient and increase bandwidth.The high frequency simulation analysis software HFSS13 and the circuit simulation software ADS2008 are adopted for design and simulation calculation,and the optimization and analysis of several key factors affecting the structure transition performance are made.This structure has the advantages of simple structure,good sealing performance,small volume,easy processing and high reliability.The design of the transfer structure is for Ku band with 14 GHz center frequency,bandwidth 3.6GHz,return loss less than-20 dB,insertion loss more than-0.1 dB,VSWR(Voltage Standing Wave Ratio) less than 1.22.更多还原