Title :
Effects of a lossy inhomogeneous substrate on microstrip lines
Author_Institution :
Dept. of Electr. Eng., Nat. Chung-Hsing Univ., Taichung, Taiwan
Abstract :
We combine a mode-matching technique and Galerkin´s method to study the propagation properties of microstrip lines on a lossy inhomogeneous substrate, which has important applications but can not be solved by conventional spectral domain methods. Poisson´s equation with a complex permittivity is derived on which the eigenmodes in each inhomogeneous layer are solved numerically. The Green´s function is derived based on the reflection matrices. Galerkin´s method is then applied to calculate the capacitance and conductance matrices of microstrip lines embedded in such a medium.
Keywords :
Galerkin method; Green´s function methods; capacitance; electric admittance; electromagnetic wave propagation; electromagnetic wave reflection; matrix algebra; microstrip lines; mode matching; permittivity; spectral-domain analysis; stochastic processes; waveguide theory; Galerkin´s method; Poisson´s equation; capacitance matrices; complex permittivity; conductance matrices; eigenmodes; inhomogeneous layer; lossy inhomogeneous substrate; microstrip lines; mode matching technique; propagation properties; reflection matrices; Conductors; Dielectric losses; Dielectric substrates; Laplace equations; Microstrip; Moment methods; Permittivity; Propagation losses; Strips; Transmission line matrix methods;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1996. AP-S. Digest
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-3216-4
DOI :
10.1109/APS.1996.550049
