MODELS FOR MULTI-REGION SAW WAVEGUIDES ON ANISOTROPIC SUBSTRATES

Award Information
Agency:
Department of Defense
Amount:
$49,931.00
Program:
SBIR
Contract:
N/A
Solitcitation Year:
N/A
Solicitation Number:
N/A
Branch:
Army
Award Year:
1987
Phase:
Phase I
Agency Tracking Number:
5928
Solicitation Topic Code:
N/A
Small Business Information
Hartmann Research Inc
5419 Ridgedale Dr, Dallas, TX, 75206
Hubzone Owned:
N
Woman Owned:
N
Socially and Economically Disadvantaged:
N
Duns:
N/A
Principal Investigator
 CLINTON S HARTMANN
 (214) 827-4940
Business Contact
Phone: () -
Research Institution
N/A
Abstract
THE PROPOSED RESEARCH WILL DEVELOP A MORE ACCURATE METHOD FOR ANALYZING SAW DEVICES BASED ON MODELING A SAW TRANSDUCER AS AN ACOUSTIC WAVEGUIDE. APPROXIMATE ANALYSIS HAS SHOWN THAT IN MOST CASES, THE LOWEST ORDER TRANSDUCER WAVEGUIDE MODES HAVE UNDESIRABLE MODE SHAPES THAT TEND TO CONCENTRATE ENERGY UNDER THE BUS BARS ON EITHER SIDE OF THE STRUCTURE. A MORE COMPLEX TRANSDUCER STRUCTURE IS PROPOSED WHICH SHOULD GREATLY IMPROVE THE LOWEST ORDER MODE SHAPES AND HENCE IMPROVE THE PERFORMANCE OF VIRTUALLY ALL TYPES OF SAW DEVICES. THE GOALS OF THE PROPOSED PROGRAM ARE (1) DEVELOP THE MODELING TECHNIQUES NEEDED TO ANALYZE COMPLEX TRANSDUCER STRUCTURES, (2) DEVELOP METHODS FOR ANALYZING THE EFFECTS OF SUBSTRATE ANISOTROPY, AND (3) DEVELOP METHODS FOR ACCURATELY MEASURING THE CHARACTERISTICS OF TRANSDUCER WAVEGUIDE MODES.

* information listed above is at the time of submission.

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