DocumentCode :
2161594
Title :
Reconfigurable MEMS transmission lines with independent Zo- and β-tuning
Author :
Lakshminarayanan, B. ; Weller, T.
Author_Institution :
Dept. of Electr. Eng., South Florida Univ., Tampa, FL, USA
fYear :
2005
fDate :
12-17 June 2005
Abstract :
A reconfigurable MEMS transmission line based on cascaded capacitors and slow-wave sections has been developed to provide independent Zo- and β-tuning. In the Zo-mode of operation, a 7.4mm long line provides Zo-tuning from 52 to 40Ω (+/-2Ω) with constant phase between the states through 50GHz. The same transmission line is reconfigured by addressing the MEM elements differently and experimental data for a 1-bit version shows 358°/dB (or 58°/mm) with S11 less than -25dB at 50GHz. The combined effect of Zo- and β-tuning is realized using a 5-bit version and provides 52/40Ω impedance tuning with 304°/dB phase shift.
Keywords :
circuit tuning; micromechanical devices; radar antennas; slow wave structures; transmission lines; waveguide antennas; 1 bit; 40 to 52 ohm; 5 bit; 50 GHz; 7.4 mm; MEM elements; cascaded capacitors; independent β-tuning; independent Zo-tuning; reconfigurable MEMS transmission lines; slow-wave sections; Capacitors; Communication system control; Delay effects; Frequency; Impedance; Micromechanical devices; Phase shifters; Phased arrays; Power transmission lines; Transmission lines;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Microwave Symposium Digest, 2005 IEEE MTT-S International
ISSN :
01490-645X
Print_ISBN :
0-7803-8845-3
Type :
conf
DOI :
10.1109/MWSYM.2005.1517022
Filename :
1517022
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=2161594
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