摘要
首先推导出波导探针输入阻抗的一般变分表达式。通过对介质加载波导的并矢格林函数求解，得到了矩形波导中截面探针输入阻抗的积分表达式。该表达式可直接作为分析微带探针或对探针进行优化的依据。利用之中的方法对Ｋａ频段的波导截面探针进行宽带优化设计，经实验验证，得到低插损、小驻波的波导——微带转换结构。
A general expression of incident impedance of probe in waveguide is deduced first.By solving Dyadic Green’s function for dielectric loaded waveguie,the integral equation for in -cident impedance of waveguide cross section plane microstrip probe is obtained.On the base ofthe equation,an analysis and an optimum method is given. This method takes the size and posi-tion of probe as variable parameters,a wide band impedance match optimum processis imployed to realize low VSWR and insert loss of microstrip probe which is verified byexperiments.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
1994年第6期602-607,共6页
Journal of University of Electronic Science and Technology of China
关键词
微带探针
并矢格林函数
输入阻抗
矩形波导
microstrip probe
Dyadic Green’s function
incident impedance
optimummethod
