多重网格法分析计算TEM传输系统特性阻抗

Calculation of The Characteristic Impedance of TEM Transmission Lines by Multi—grid Method

本文用V循环和W循环的多重网格法计算了同轴矩形TEM传输线的特性阻抗。并与保角度换法所得结果进行了比较,证明所用方法有效性。然后,计算了部分介质加载同轴矩形TEM传输线的特性阻抗。数值结果表明,W循环的多重网格法比G—S代法快近四倍。

The characteristic impedance of rectangular coaxial transmission lines supporting TEM modes is calculated by using multi-grid method with V-cycle and W-cycle. The results are compared with those got from conformal transformation techniques. It verifies the validity of multi-grid method in solving such problems. Then the characteristic impedance of partially dielectric loaded rectangular coaxial transmission lines is calculated by this method. Numerical results show that the multi—grid method with W-cycle is faster about four time than the G-Siterative method.