复杂截面同轴线特性阻抗、截止波长的计算

Calculation of characteristic impedance and cut off wavelength of special section coaxial transmission lines

应用静电场的观点和导波传输理论 ,用有限元法 (FEM)分别计算了各种复杂截面同轴线特性阻抗、截止波长。计算结果表明 ,该方法计算精度高 ,通用性强 ,简便易行 。

Based on the electrostatic field theory and transmission line theory, characteristic impedance and cut off wavelength of special section coaxial transmission lines are calculated using Finite Element Method (FEM). Through calculating and analyzing some engineering problems, it is proved that the method is of high accuracy, common usefulness and can be applied generally for the analysis of TEM transmission lines.