Full-wave analysis of a two slot microstrip filter using a new algorithm for computation of the spectral integrals

Author

Gothelf, Ulrich V. ; Ostergaard, A.

Author_Institution

Electromagn. Inst., Tech. Univ. of Denmark, Lyngby, Denmark

Volume

41

Issue

1

fYear

1993

fDate

1/1/1993 12:00:00 AM

Firstpage

101

Lastpage

108

Abstract

An integral equation is formulated in the spectral domain for a two slot microstrip filter using the exact Green´s function for the grounded dielectric substrate. Using a moment method (MM) procedure, the integral equation has been discretized. The elements of the impedance matrix and the excitation vector are given by two dimensional Sommerfeld-type integrals in closed form. An efficient and accurate numerical integration scheme for computation of the elements is presented. The S parameters obtained from the MM procedure have been found to be in excellent agreement with measurements

Keywords

microstrip components; microwave filters; passive filters; waveguide theory; S parameters; exact Green´s function; excitation vector; full-wave analysis; grounded dielectric substrate; impedance matrix; integral equation; moment method; numerical integration; spectral domain; spectral integrals; two dimensional Sommerfeld-type integrals; two slot microstrip filter; Algorithm design and analysis; Current distribution; Geometry; Impedance; Integral equations; Microstrip filters; Scattering parameters; Surface waves; Testing; Transmission line matrix methods;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.210235

Filename

210235