Mode conversion at GCPW-to-microstrip-line transitions

Author

Raskin, Jean-Pierre ; Gauthier, Gildas ; Katehi, Linda P. ; Rebeiz, Gabriel M.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA

Volume

48

Issue

1

fYear

2000

fDate

1/1/2000 12:00:00 AM

Firstpage

158

Lastpage

161

Abstract

Mode conversion at the transition between grounded coplanar waveguide (GCPW) and microstrip line is demonstrated. Experimental results show the effect of overmoding in a conductor-backed coplanar waveguide on the transition behavior. A simple micromachining solution is used to cancel the parasitic modes triggered by the transition in the GCPW feed line. This results in an insertion loss of 0.3 dB and a return loss better than -18 dB from 75 to 110 GHz. The transition can prove very useful for millimeter-wave packaging and interconnects

Keywords

coplanar waveguides; integrated circuit interconnections; integrated circuit packaging; losses; micromachining; microstrip lines; millimetre wave integrated circuits; waveguide transitions; 0.3 dB; 75 to 110 GHz; GCPW-to-microstrip-line transitions; conductor-backed coplanar waveguide; grounded coplanar waveguide; insertion loss; micromachining solution; millimeter-wave interconnects; millimeter-wave packaging; overmoding; parasitic modes; return loss; transition behavior; Coplanar waveguides; Electromagnetic waveguides; Feeds; Frequency; Insertion loss; Integrated circuit packaging; Microstrip; Millimeter wave integrated circuits; Millimeter wave measurements; Millimeter wave technology;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.817486

Filename

817486