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

fYear

2010

fDate

23-28 May 2010

Firstpage

1

Lastpage

1

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest (MTT), 2010 IEEE MTT-S International

Conference_Location

Anaheim, CA

ISSN

0149-645X

Print_ISBN

978-1-4244-6056-4

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2010.5516240

Filename

5516240