Title :
Quasistatic analysis of microstrip lines on lossy inhomogeneous substrates
Author_Institution :
Dept. of Electr. Eng., Nat. Chung-Hsing Univ., Taichung, Taiwan
fDate :
10/1/1996 12:00:00 AM
Abstract :
The propagation constant of microstrip lines on a lossy inhomogeneous substrate is analysed by using a mode-matching technique and the Galerkin method. Poisson´s equation with a complex permittivity is derived based on the electroquasistatic approximation. Eigenmodes in each inhomogeneous layer are obtained by solving the Poisson equation. Next, a mode-matching technique is applied to derive Green´s function for a line charge in the lossy inhomogeneous layered medium. The Galerkin method is then applied to calculate the capacitance and conductance matrices of microstrip lines embedded in such a medium. Both single and coupled microstrip lines are analysed
Keywords :
Galerkin method; Green´s function methods; capacitance; eigenvalues and eigenfunctions; electrostatics; microstrip lines; mode matching; transmission line matrix methods; waveguide theory; Galerkin method; Poisson´s equation; capacitance; complex permittivity; conductance matrice; coupled microstrip lines; eigenmodes; electroquasistatic approximation; inhomogeneous layer; line charge; lossy inhomogeneous substrates; mode-matching; propagation constant; quasistatic analysis; single microstrip lines;
Journal_Title :
Microwaves, Antennas and Propagation, IEE Proceedings
DOI :
10.1049/ip-map:19960504
