Frequency-Agile Ka-band Filters Based on Functionally Graded BST Thin Films

Award Information
Agency: Department of Defense
Branch: Army
Contract: W911NF-08-C-0124
Agency Tracking Number: A074-009-0030
Amount: $750,000.00
Phase: Phase II
Program: STTR
Awards Year: 2008
Solicitation Year: 2007
Solicitation Topic Code: A07-T009
Solicitation Number: N/A
Small Business Information
201 Circle Drive North, Unit # 102, Piscataway, NJ, 08854
DUNS: 787144807
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Nick Sbrockey
 Senior Scientist
 (732) 302-9274
Business Contact
 Gary Tompa
Title: President
Phone: (732) 302-9274
Research Institution
 Carol Welt
 438 Whitney Road
Ext. U-1133
Storrs, CT, 6269
 (960) 486-4623
 Nonprofit college or university
In this STTR program, Structured Materials Industries, Inc. (SMI) and our University partners are developing compact, efficient, voltage-tunable, radio frequency (RF) filters. Although the Phase I and Phase II efforts are directed toward RF filters for use in the Ka band (26 to 40 GHz), the technology developed in this STTR project is equally applicable to many different products, operating over a wide range of RF and microwave frequencies. The tunable filters will have properties not possible using present technology, including; high speed, low loss, low insertion loss and excellent temperature stability. Our technical approach utilizes tunable dielectric thin films, based on barium strontium titanate (BST). We use functional composition grading to improve tunability and temperature stability of the films. We also use metallic acceptor doping to reduce dielectric losses. Phase I demonstrated technical feasibility of our approach, by producing BST film components with high tunability and excellent temperature stability. In Phase II, we will develop and demonstrate complete prototypes of the voltage tunable filters. We will also demonstrate the commercial manufacturing technology. In Phase III, we will implement and commercialize the filters and the tunable RF device technology, for a wide range of military and civilian applications.

* Information listed above is at the time of submission. *

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