Fast, accurate and simple approximate analytic formulas for calculating the parameters of supported coplanar waveguides for (M)MIC´s

Author

Bedair, Said S. ; Wolff, Ingo

Author_Institution

Dept. of Electr. Eng., Duisburg Univ., Germany

Volume

40

Issue

1

fYear

1992

fDate

1/1/1992 12:00:00 AM

Firstpage

41

Lastpage

48

Abstract

Fast, accurate, and simple approximate analytic formulas are presented for calculating the quasi-static-TEM parameters of supported coplanar waveguide (SCPW) structures. These include the open, covered as well as dielectric over-layed SCPWs. These formulas have been designed for use in (M)MICs CAD programs and are only valid whenever the supporting material is of lower permittivity. Comprehensive comparisons have been made by using a rigorous spectral-domain hybrid mode analysis. Accuracy is found to be better than 1% for most of the operating range of physical dimensions and available dielectric materials (∈_r=1 to 20). Numerical results are also presented in order to investigate the properties of different SCPW structures

Keywords

MMIC; microwave integrated circuits; strip line components; CAD programs; coplanar waveguides; design parameters; dielectric over-layed CPW; quasi-static-TEM parameters; spectral-domain hybrid mode analysis; supported CPW; Application specific integrated circuits; Assembly; Coplanar waveguides; Dielectric materials; Dielectric substrates; Gallium arsenide; MMICs; Microstrip; Microwave integrated circuits; Permittivity;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.108321

Filename

108321