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The Terrace Network for Low-Cost Broadband AJ/LPI Communication in the LMDS Band

Award Information
Agency: Department of Defense
Branch: Army
Contract: A982-0816
Agency Tracking Number: A982-0816
Amount: $69,984.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Timeline
Solicitation Year: N/A
Award Year: 1999
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
329 North Bernardo Avenue
Mountain View, CA 94043
United States
DUNS: N/A
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Brian Agee PhD
 (650) 988-4707
Business Contact
Phone: () -
Research Institution
N/A
Abstract

Not Available An innovative acoustic transducer/actuator using a single crystal piezoelectric driver will be developed. Single crystal piezoelectric materials such as PZN-4.5%PT are capable of near linear strains greater than 0.5% and a coupling coefficient as great as 92% allowing high output over a broad bandwidth. Accordingly, there is a desire to develop a transducer and/or actuator that capitalizes on these properties. Although large scale manufacturing of this material is not fully developed at this time, small sized pieces in small quantities are currently available. Because of this and because of the high cost of the small pieces, we have chosen a configuration that will allow both high displacement actuator and acoustic transducer operation with a minimum of adverse effects on the coupling coefficient. The design is based on U. S. Patent 4,845,688 and uses stiff lever arms to magnify the displacement without significant bending, which can reduce the coupling coefficient. With this design only small quantities of the single crystal should be needed to attain a high-output broad bandwidth acoustic transducer. We plan to develop a finite element model of the design and fabricate a laboratory model using single crystal material.

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

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