High-Q, Tunable Microwave Superconducting Strip-Line Filters

Award Information
Agency:
Department of Defense
Branch
Missile Defense Agency
Amount:
$749,912.00
Award Year:
2003
Program:
SBIR
Phase:
Phase II
Contract:
F4962003C0012
Award Id:
53153
Agency Tracking Number:
01-0360
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
2820 East College Avenue, State College, PA, 16801
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
782683007
Principal Investigator:
Dean Anderson
Director of Engineering
(814) 238-7485
dean@trsceramics.com
Business Contact:
Wesley Hackenberger
Managing Director
(814) 238-7485
wsh@trsceramics.com
Research Institution:
n/a
Abstract
The objective of the proposed Phase II SBIR program is to develop high Q, tunable microwave filters by using a cryogenic piezoelectric actuator to mechanically tune a high temperature superconducting resonator. This device will enable a broad range ofcivilian and military applications that require precise band selectivity over a broad frequency range. In Phase I of this project, a 25% tuning range was successfully demonstrated between 2 and 8 GHz by using a piezoelectric bending element to adjust thewidth of an air gap between a microstrip resonator and a dielectric or metal tuning plate. For Phase II high Q will be achieved with high temperature superconducting resonators requiring operation below 77K; temperatures at which conventionalpiezoelectrics exhibit poor performance. Instead, we will use relaxor ferroelectric single crystals such as Pb(Mg1/3Nb2/3)O3-PbTiO3, which exhibit over 10 times the strain of conventional ceramic materials at room temperature and exhibit a 5-foldimprovement at cryogenic temperatures. The Phase II program will be collaboration between TRS Technologies, Inc. and the Pennsylvania State University. The goal will be to develop a multipole bandpass filter at 1-3 GHz using half-wavelengthtransmission-line-resonator design, with 1% bandwidth, >25% tunability, and less than 1-dB insertion loss.

* information listed above is at the time of submission.

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