多平行圆杆带状线分布参数新计算方法及应用

A New Method of Calculating Distributing Parameters for theStriplines with Multi-parallel Circular Rods and Its Application

基于变分原理中的极限定理，采用等效多边形柱拟合传输线内圆导体，并借助保角变换技术，得到了一种计算多平行耦合圆杆带状线分布电容参数的新方法，这种方法计算速度快，准确度高，已成功地用于超小型化波导腔体式滤波器ＣＡＤ的研制中。

A new method of calculating the distributing capacitances for the striplineswith multi-parallel circular rods is introduced with the use of an equivalent polygon rodto simulate the inner circular conductor and with the help of conformal mapping technol-ogy.The method employing the limit theorem of variational principle is fast incalculating speed and accurate and it is used to develop CAD of supper-miniaturewaveguide cavity fiIters.