Capacitive transmission lines in coplanar waveguide for millimeter-wave integrated circuit design

Author

Bessemoulin, A. ; Verweyen, L. ; Massler, H. ; Schlechtweg, M.

Author_Institution

Fraunhofer-Inst. fur Angewandte Festkorperphys., Freiburg, Germany

Volume

9

Issue

11

fYear

1999

fDate

11/1/1999 12:00:00 AM

Firstpage

450

Lastpage

452

Abstract

For use in millimeter-wave integrated circuits, theoretical and experimental design data for various useful capacitive transmission lines in coplanar waveguide on gallium arsenide are presented. Multifinger and metal-insulator-metal (MIM) lines enabling low characteristic impedance of the order of 10 Ω as well as broadband capacitive coupled transmission lines are investigated. Simple design rules and accurate models validated with measurements up to 120 GHz demonstrate that such planar transmission lines can be used in monolithic microwave integrated circuits (MMICs) to extend the impedance range and the design flexibility with respect to the conventional CPW

Keywords

III-V semiconductors; MIM devices; MIMIC; coplanar waveguides; coupled transmission lines; gallium arsenide; integrated circuit design; 120 GHz; GaAs; MIM lines; broadband capacitive coupled transmission lines; capacitive transmission lines; characteristic impedance; coplanar waveguide; design flexibility; design rules; impedance range; millimeter-wave integrated circuit design; monolithic microwave integrated circuits; multifinger lines; Coplanar transmission lines; Coplanar waveguides; Design for experiments; Distributed parameter circuits; Impedance; Integrated circuit modeling; MMICs; Millimeter wave integrated circuits; Planar transmission lines; Transmission line theory;

fLanguage

English

Journal_Title

Microwave and Guided Wave Letters, IEEE

Publisher

ieee

ISSN

1051-8207

Type

jour

DOI

10.1109/75.808031

Filename

808031