Theoretical and experimental characterization of nonsymmetrically shielded coplanar waveguides for millimeter wave circuits

Author

Allessandri, F. ; Goebel, U. ; Melai, F. ; Sorrentino, R.

Author_Institution

Rome Univ., Italy

fYear

1989

fDate

13-15 June 1989

Firstpage

1219

Abstract

The nonsymmetrically shielded coplanar waveguide (NSCPW) is proposed as a quasi-TEM (transverse electromagnetic) transmission line with advantageous characteristics for millimeter-wave circuit applications. The structure combines properties of the finline and the suspended stripline. In addition to a full-wave theoretical analysis, an experimental technique has been developed which enables the transmission line spectrum to be evaluated in a wide frequency band (15:1) with a single transmission measurement. Results are shown to be in excellent agreement with theoretical predictions. Design curves are also presented.<>

Keywords

solid-state microwave circuits; waveguide theory; waveguides; full-wave theoretical analysis; millimeter wave circuits; nonsymmetrically shielded coplanar waveguides; quasi-TEM; single transmission measurement; transmission line; transmission line spectrum; wide frequency band; Coplanar transmission lines; Coplanar waveguides; Distributed parameter circuits; Electromagnetic scattering; Electromagnetic shielding; Electromagnetic waveguides; Finline; Millimeter wave circuits; Stripline; Transmission line theory;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1989., IEEE MTT-S International

Conference_Location

Long Beach, CA, USA

Type

conf

DOI

10.1109/MWSYM.1989.38945

Filename

38945