SBIR-STTR Award

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Low Loss Saw Filters Using Monolithic Construction
Award last edited on: 5/16/02

Sponsored Program
SBIR
Awarding Agency
DOD : Army
Total Award Amount
$521,523
Award Phase
2
Solicitation Topic Code
A86-083
Principal Investigator
Donald James Halsey

Company Information

Hartmann Research Inc

900 Alpha Drive Suite 400
Richardson, TX 75081
   (972) 696-9471
   N/A
   N/A
Location: Single
Congr. District: 32
County: Dallas

Phase I

Contract Number: 12675
Start Date: 00/00/00    Completed: 00/00/00
Phase I year
1986
Phase I Amount
$49,657
The proposed program will provide experimental verification of a new monolithic low-loss saw transducer structure. The structure is a single phase unidirectional transducer (spudt) but avoids the problems encountered by previous spudt structures. The advantages of the structure include ease of fabrication and adequate reflectivity for both wide band and narrow band filters. The structure also avoids the problems associated with the recently announced "natural spudt" in which all transducers have their forward acoustic ports pointing in the same direction.

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Phase II

Contract Number: 12675
Start Date: 00/00/00    Completed: 00/00/00
Phase II year
1987
Phase II Amount
$471,866
The phase I program demonstrated feasibility of an innovative new low loss saw transducer structure, the electrode width controlled single phase unidirectional transducer (ewc/spudt). This monolithic transducer overcomes the limitations of previous low loss saw filters which will greatly expand its potential uses in military and commercial systems. The phase II program will concentrate on accurately measuring the properties of the ewc/spudt so that accurate filter synthesis is possible. Also, filter synthesis techniques will be developed and demonstrated by designing a low loss 300 mhz bandpass filter.

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