In order to realize thin dielectric structure of the transmission line and combined the principle of the design of CPW, a cavity structure has also been studied.

为了实现射频传输线的薄衬底结构，根据共面波导的设计思想，设计了腔体式共面波导型射频微机械开关。

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Secondly, Using MATLAB and HFSS to deeply research three types of analytical method for microstrip antenna which are transmission line method, cavity mode theory and finite-element method.

其次，结合MATLAB编程仿真和HFSS建模仿真，对微带天线的三种典型分析方法进行了深入研究，即传输线法、腔模理论和有限元法，为下面宽频带微带天线的设计奠定了理论依据。

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