Analysis of coplanar waveguide multiple-step discontinuities

Author

Nguyen, C. ; Rahman, K.M.

Author_Institution

Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA

fYear

1993

fDate

June 28 1993-July 2 1993

Firstpage

185

Abstract

An analysis of multiple-step discontinuities for a shielded three-layer coplanar waveguide (CPW) based on the mode-matching technique is presented. The analyzed step discontinuities are general: the center strip width, the ground plane, or both can be varied, and changes can be made symmetrically or asymmetrically. There is a good agreement between the scattering (S) parameters of a CPW single-step discontinuity calculated using this analysis and those published previously. Calculated results for double- and triple-step discontinuities are presented. The convergence behavior of S-parameters for various discontinuities is also investigated. The analysis developed here should be very useful for the design of CPW-based MICs (microwave integrated circuits) and MMICs (monolithic MICs).<>

Keywords

S-parameters; convergence of numerical methods; coplanar waveguides; microwave integrated circuits; mode matching; waveguide discontinuities; MMICs; S-parameters; coplanar waveguide multiple-step discontinuities; design; microwave integrated circuits; mode-matching technique; shielded three-layer coplanar waveguide; Conductors; Coplanar waveguides; Equations; MMICs; Microwave integrated circuits; Modal analysis; Monolithic integrated circuits; Scattering parameters; Strips; Waveguide discontinuities;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1993. AP-S. Digest

Conference_Location

Ann Arbor, MI, USA

Print_ISBN

0-7803-1246-5

Type

conf

DOI

10.1109/APS.1993.385372

Filename

385372