Dispersion characteristics of the broadside-coupled coplanar waveguide

Author

Nguyen, Cam

Author_Institution

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

Volume

41

Issue

9

fYear

1993

fDate

9/1/1993 12:00:00 AM

Firstpage

1630

Lastpage

1633

Abstract

The dispersive properties for the even- and odd-modes of the broadside-coupled coplanar waveguide (CPW) are determined using the spectral domain method. Various numerical results of the even- and odd-mode effective dielectric constants as a function of frequency are presented and discussed. It is found that the structure has a very weak dispersion. This fact is further confirmed through a comparison between the calculated dynamic and quasi-static results of the even- and odd-mode effective dielectric constants. The low dispersion feature signifies the fact that the quasi-static analysis is adequate for designing practical microwave and millimeter-wave circuits employing broadside-coupled CPW

Keywords

MMIC; dispersion (wave); microstrip lines; microwave integrated circuits; permittivity; spectral-domain analysis; waveguide theory; MMIC; broadside-coupled CPW; coplanar waveguide; dispersion characteristics; effective dielectric constants; even-modes; low dispersion feature; microwave IC; millimeter-wave circuits; odd-modes; quasi-static analysis; spectral domain method; Coplanar waveguides; Coupling circuits; Dielectric constant; Dispersion; MMICs; Microwave filters; Microwave integrated circuits; Microwave theory and techniques; Stripline; Wideband;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.245689

Filename

245689