Title :
A very low loss 1.9–2.1 GHz RF MEMS phase shifter
Author :
Cheng, CC. ; Ko, CH. ; Morri, A. ; Rebeiz, G.M.
Author_Institution :
The University of California, San Diego, La Jolla, 92093-0407, USA
Abstract :
This paper presents the design, fabrication and test of a very low loss phase shifter built using the wiSpry RF MEMS switched capacitor. The phase shifter covers > 360° at 1.9–2.1 GHz with an insertion loss of 1.1+/−0.6 dB over all phase states. The measured linearity shows an IIP3 > 46 dBm over all phase states. The phase shifter has a measured power handling of 1 W before any self-actuation occurs. To our knowledge, this is the lowest loss phase shifter at 2.0 GHz using any technology.
Keywords :
Antennas; Micromechanical devices; Phase measurement; Radio frequency; Switches; RF MEMS; base-station antennas; capacitive switches; phased arrays;
Conference_Titel :
Microwave Symposium Digest (MTT), 2012 IEEE MTT-S International
Conference_Location :
Montreal, QC, Canada
Print_ISBN :
978-1-4673-1085-7
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2012.6259437
