Title :
Stub mounted loaded line phase shifter using novel RF MEMS switch
Author :
Vasudev Anand, B. ; Shajahan, E.S. ; Bhat, M.S.
Author_Institution :
Dept. of Electron. & Commun., N.I.T.K., Surathkal, Thailand
Abstract :
This paper presents the design and realization of a stub mounted loaded line phase shifter using a novel flexure type RF MEMS shunt switch. The design consists of a CPW transmission line with two identical stubs loaded with MEMS switches. RF MEMS switch provides the inherent advantages of linearity, low insertion loss, better RF performance as compared to p-i-n diode. Phase shifter is designed for 22.5° and 45° to obtain the constant Phase shift for large range of frequencies from centre frequency of 30GHz. Simulation results show that the phase shifter introduces an insertion loss of 0.06dB/bit and -1.48dB/bit for the two cases respectively and the actuation voltage of the switch is found to be 17.2V.
Keywords :
coplanar waveguides; microswitches; p-i-n diodes; phase shifters; transmission lines; CPW transmission line; RF performance; flexure type RF MEMS shunt switch; frequency 30 GHz; insertion loss; linearity; p-i-n diode; stub mounted loaded line phase shifter; voltage 17.2 V; Insertion loss; Micromechanical devices; Microswitches; Phase shifters; Power transmission lines; Radio frequency; Insertion loss; Loaded line Phase shifter; RF MEMS; Stub-mounted;
Conference_Titel :
Electron Devices and Solid State Circuit (EDSSC), 2012 IEEE International Conference on
Conference_Location :
Bangkok
Print_ISBN :
978-1-4673-5694-7
DOI :
10.1109/EDSSC.2012.6482859
