Analysis of microstrip open-end and gap discontinuities in a substrate-superstrate configuration

Author

Yang, H.-Y. ; Alexopoulos, N.G. ; Jackson, D.R.

Author_Institution

Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA

fYear

1988

fDate

25-27 May 1988

Firstpage

705

Abstract

A study of microstrip open-end and gap discontinuities in a two-layer structure is presented. The analysis is based on the method-of-moments solution of a full-wave integral equation. A combination of semi-infinite modes and subdomain modes is used. The transverse dependence of the expansion functions is obtained through a two-dimensional infinite analysis. A parametric study of the material effects on the radiation and surface-wave losses, and the fringing fields at the discontinuities is also performed. The analysis shows good agreement in the limiting case with the quasistatic method.<>

Keywords

integral equations; strip lines; waveguide theory; expansion functions; fringing fields; full-wave integral equation; gap discontinuities; method-of-moments solution; microstrip; open-end; quasistatic method; radiation losses; semi-infinite modes; subdomain modes; substrate-superstrate configuration; surface-wave losses; transverse dependence; two-dimensional infinite analysis; two-layer structure; Capacitance; Coupling circuits; Equivalent circuits; Frequency; Integral equations; Matched filters; Microstrip filters; Moment methods; Parametric study; Surface waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1988., IEEE MTT-S International

Conference_Location

New York, NY, USA

Type

conf

DOI

10.1109/MWSYM.1988.22129

Filename

22129