Millimeter-wave CMOS digital controlled artificial dielectric differential mode transmission lines for reconfigurable ICs

Author

LaRocca, Tim ; Tam, Sai-Wang ; Huang, Daquan ; Gu, Qun ; Socher, Eran ; Hant, William ; Chang, Frank

Author_Institution

Department of Electrical Engineering, University of California, Los Angeles, 90095, USA

fYear

2008

fDate

15-20 June 2008

Firstpage

181

Lastpage

184

Abstract

Digital control of the effective dielectric constant of a differential mode transmission line is shown up to 60 GHz in standard CMOS technology. The effective dielectric constant is shown to increase from 5 to over 50 for the fixed artificial dielectric case. The digital controlled artificial dielectric transmission line (DiCAD) uses MOS switches to dynamically control the phase. DiCAD achieves 50% of the physically available tuning range with effective dielectric constants varying between 7 and 28. Measured results favorably agree with full-wave electromagnetic simulations.

Keywords

CMOS digital integrated circuits; MIS devices; coplanar transmission lines; digital control; microwave switches; millimetre wave phase shifters; permittivity; slow wave structures; CMOS technology; MOS switches; artificial dielectric differential mode transmission lines; coplanar transmission lines; effective dielectric constant; frequency 60 GHz; full-wave electromagnetic simulations; millimeter-wave CMOS digital control; permittivity; phase shifters; reconfigurable ICs; slow wave structures; CMOS technology; Dielectric constant; Digital control; Distributed parameter circuits; Millimeter wave communication; Millimeter wave technology; Power transmission lines; Strips; Switches; Transmission lines; Coplanar Transmission Lines; Digital Control; Permittivity; Phase Shifters; Slow Wave Structures;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2008 IEEE MTT-S International

Conference_Location

Atlanta, GA

ISSN

0149-645X

Print_ISBN

978-1-4244-1780-3

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2008.4633133

Filename

4633133