Rigorous solution of mode spectra for shielded multilayer microstrip lines

Author

Xu, Yun-Sheng ; Omar, Abbas Sayed

Author_Institution

Arbeitsbereich Hochfrequenztech., Tech. Univ. Hamburg-Harburg, Germany

Volume

42

Issue

7

fYear

1994

fDate

7/1/1994 12:00:00 AM

Firstpage

1213

Lastpage

1222

Abstract

Based on the equivalent transmission line concept, a simplified method has been developed to derive the dyadic Green´s functions and field expansion coefficients for multilayer structures. An improved formulation of the singular integral equation method is presented for shielded multilayer microstrip lines. A systematic method for analytically calculating the final characteristic matrix to any order is also proposed. The developed numerical technique leads to an accurate and efficient determination of both propagation constants and field distributions for a large number of eigenmodes. For instance, 100 modes can easily be computed in reasonable CPU time

Keywords

Green´s function methods; integral equations; microstrip lines; waveguide theory; characteristic matrix; dyadic Green functions; eigenmodes; equivalent transmission line; field distributions; field expansion coefficients; mode spectra; multilayer structures; numerical technique; propagation constants; shielded multilayer microstrip lines; singular integral equation method; Accuracy; Costs; Dielectric losses; Integral equations; Microstrip; Nonhomogeneous media; Propagation constant; Transmission line matrix methods; Transmission lines; Waveguide junctions;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.299759

Filename

299759