Analysis of quasi complex modes on lossy substrate boxed microstrip lines

Author

Huret, F. ; Pribetich, P. ; Kennis, P.

Author_Institution

Centre Hyperfrequences et Semicond., CNRS, Villeneuve d´´Ascq, France

fYear

1991

fDate

10-14 July 1991

Firstpage

667

Abstract

Using the spectral domain approach improved by asymptotic expansions, it is shown by means of coupling integral values that the notion of quasi-complex modes can be introduced for lightly lossy substrates. The distribution of electric and magnetic fields in the cross section plane of a boxed microstrip line is shown as an example. Since for lossy structures all modes have a complex propagation constant, so the quasi-complex modes are particular modes with behavior similar to that of lossless structure complex modes.<>

Keywords

guided electromagnetic wave propagation; spectral analysis; strip lines; waveguide theory; asymptotic expansions; complex propagation constant; cross section plane; lightly lossy substrates; lossless structure complex modes; lossy substrate boxed microstrip lines; quasi complex modes; spectral domain approach; Conductivity; Coupling circuits; Electromagnetic analysis; Frequency; Microstrip; Optical coupling; Propagation constant; Propagation losses; Substrates; Transmission line discontinuities;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1991., IEEE MTT-S International

Conference_Location

Boston, MA, USA

ISSN

0149-645X

Print_ISBN

0-87942-591-1

Type

conf

DOI

10.1109/MWSYM.1991.147091

Filename

147091