Characterization and measurements of laterally shielded coplanar waveguide at millimeter wavelengths

Author

Artuzi, Wilson A., Jr. ; Yoneyama, Tsukasa

Author_Institution

Res. Inst. of Electr. Commun., Tohoku Univ., Sendai, Japan

Volume

42

Issue

1

fYear

1994

fDate

1/1/1994 12:00:00 AM

Firstpage

150

Lastpage

153

Abstract

A laterally shielded coplanar waveguide consisting of a coplanar waveguide of finite width placed vertically in a cutoff parallel-plate waveguide is proposed for millimeter-wave applications. Advantages of the waveguide over the conventional coplanar waveguide are weak dispersion and low loss characteristics due to elimination of undesired surface waves and radiation. Simple but accurate analytical formulas for circuit design are derived and semi-empirical formulas for the weakly dispersive characteristics are also examined. Transitions to coaxial line are devised and the propagation constant is measured at millimeter wavelengths

Keywords

dispersion relations; electric impedance; magnetic shielding; permittivity; waveguide theory; coaxial line; coplanar waveguide; cutoff parallel-plate waveguide; laterally shielded CPW; low loss characteristics; millimeter wavelengths; propagation constant; weak dispersion; weakly dispersive characteristics; Circuit analysis; Circuit synthesis; Coaxial components; Coplanar waveguides; Dispersion; Millimeter wave circuits; Millimeter wave measurements; Propagation constant; Surface waves; Wavelength measurement;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.265543

Filename

265543