Superconducting Electronically Tunable (SET) Filter

Period of Performance: 07/18/1994 - 02/25/1995


Phase 1 STTR

Recipient Firm

Superconducting Core Technologies
720 Corporate Circle
Golden, CO 80401
Principal Investigator
Firm POC

Research Institution

University of Colorado Boulder
572 UCB
Boulder, CO 80309
Institution POC

Research Topics


During this Phase I STTR program, SCT will develop technology applicable to adaptive signal processing in electronic warfare sensors specifically, a wideband tunable (~600MHz) multi-pole filter for narrowband (20MHz) bandstop applications at X-band will be built and delivered to the Air Force. The program will be executed in cooperation with the University of Colorado (CU) and COMSAT Laboratiories under the Company's direction. This filter will be fabricated in microstrip technology on a LaA103 substrate with YBCO superconduction film for the conductors, BST ferroelectric film for the tuning elements, and a gold ground plane. It will be package and connectorized for testing in a cryostat. The phasr I effort will be partitioned in two parts: first, a single-pole filter design will be fabricated and tested, and the results obtained will be used in the second part for designing the multi-pole filter. In fabrication, commercially available YBCO films will be used. The ferrelectric film will be deposited by laser ablation at CU.