Title :
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
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;
Conference_Titel :
Microwave Symposium Digest, 2008 IEEE MTT-S International
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-1780-3
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2008.4633133
