Analysis on the effect of metal penetrating depth into the anisotropic substrate in a shielded microstripline
This article describes the quasistatic analysis of a shielded microstripline with finite metallization thickness penetrating into the anisotropic substrate. A vertical directional mode-matching method, which includes eigenfunctions with inhomogeneous properties for analyzing this structure, has been used. This method not only provides a simple and fast approach to the quasistatic analysis of inhomogeneous structures, but also can be applied to analyze the effect of metal penetration into the anisotropic substrate. The results show that the characteristic impedances of a shielded microstripline can be represented as a function of the ship width, the metal thickness, and the metal penetrating depth into the substrate. (C) 1999 John Wiley & Sons, Inc.
anisotropic substrate metallization thickness mode-matching method