Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1991-09-03
1993-05-18
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310313B, 333195, H01L 4108
Patent
active
052124207
ABSTRACT:
An acoustic wave device comprises an acoustic wave transducer coupled to an acoustic wave propagating substrate. The acoustic wave transducer converts signal energy between electrical and acoustical forms. Acoustic reflectors are placed one on either side of the acoustic wave transducer. The acoustic reflectors are composed of acoustic reflection elements spaced approximately one wavelength apart, and provide enhanced acoustic acoustic reflections together with relaxed fabrication constraints.
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Cho Frederick Y.
Hickernell Thomas S.
Penunuri David
Budd Mark O.
Fliegel Frederick M.
Motorola Inc.
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