Title :
Low temperature superconductive tunable bandstop resonator and filter
Author :
Attar, Sara S. ; Setoodeh, Sormeh ; Mansour, Raafat R.
Author_Institution :
Univ. of Waterloo, Waterloo, ON, Canada
Abstract :
A superconducting MEMS varactor is reported. The device is fabricated using a standard Niobium superconductor foundry process. Utilizing this varactor a superconducting tunable notch resonator is implemented. The tunable resonator has a measured tunability of more than 20% from 3.22 GHz to 2.54 GHz with a biasing voltage from 0 V to 78 V. A 3-pole bandstop filter is also fabricated and tested. Simulation results of the tunable bandstop filter demonstrates a 20% shift in center frequency.
Keywords :
band-stop filters; cryogenic electronics; foundries; micromechanical devices; microwave filters; niobium; notch filters; superconducting filters; superconducting resonators; varactors; 3-pole bandstop filter; Nb; center frequency; frequency 3.22 GHz to 2.54 GHz; low temperature superconductive tunable bandstop resonator; standard niobium superconductor foundry process; superconducting MEMS varactor; superconducting tunable notch resonator; tunable bandstop filter; voltage 0 V to 78 V; Foundries; Micromechanical devices; Niobium; Resonator filters; Superconducting filters; Superconductivity; Temperature; Testing; Varactors; Voltage;
Conference_Titel :
Microwave Symposium Digest (MTT), 2010 IEEE MTT-S International
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4244-6056-4
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2010.5516240
