双线型加载传输线电容的线性边界元计算

Linear boundary element method on capacitance of coaxial hybrid loaded transmission line

应用线性边界元法(LBEM)验证了双圆柱内导体矩形板线,计算结果表明:LBEM具有较高的计算精度。并分析了一类双线型加载传输线,得出了实际中各导体间的耦合电容随加载双线夹角的变化规律,可方便地用于双线型加载传输线实际工程问题的设计。

The linear boundary element method（LBEM） makes boundary element into linear segment from linear interpolating function.The rectangular slab-line with two cylindrical inner conductors is validated by LBEM.The calculated results show that： LBEM has a high computational accuracy.A coaxial hybrid loaded transmission line is analyzed by LBEM in this paper.The variation of coupling capacitance with two hybrid loaded conductors by the change of θ（the angle of two hybrid loaded conductors）in practice.It is reliable and may be used to design the hybrid loaded transmission line engineering problems.