A solution of coplanar waveguide with air-bridges using complex images

Author

Omar, Amjad A. ; Chow, Y. Leonard

Author_Institution

Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada

Volume

40

Issue

11

fYear

1992

fDate

11/1/1992 12:00:00 AM

Firstpage

2070

Lastpage

2077

Abstract

A method for solving general CPW circuits including air bridges is proposed. The method generalizes the integral equation technique to nonplanar structures containing hybrid electric and magnetic currents. It also exploits the full-wave complex image technique to calculate the Green´s functions of this structure efficiently. The method, therefore, offers a substantial reduction in computer time and memory over many other full-wave methods. The accuracy of the method is checked by comparing the results with available FDTD-theoretical and experimental results for a coplanar-waveguide band-reject filter. Using only 92 matching points, the method gave very good agreement

Keywords

Green´s function methods; band-stop filters; integral equations; microwave filters; passive filters; waveguide components; waveguide theory; CPW circuits; Green´s functions; air-bridges; band-reject filter; complex images; coplanar waveguide; full-wave complex image technique; integral equation; nonplanar structures; Bridge circuits; Coplanar waveguides; Coupling circuits; Equations; Finite difference methods; Frequency; Grounding; Millimeter wave technology; Slotline; Waveguide theory;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.168765

Filename

168765