Acoustic surface wave multimode filter comprising a bus bar whic

Details Acoustic surface wave multimode filter comprising a bus bar whic Acoustic surface wave multimode filter comprising a bus bar whic

1986-08-27

1989-03-07

Steinberger, Brian S.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310313C, 333154, H01L 4104

Patent

active

048109207

ABSTRACT:
In an acoustic surface wave multimode filter comprising a pair of acoustic surface wave resonators and a bus bar on a piezoelectric substrate with the bus bar shared by the resonators, the bus bar is rendered thicker than the resonators. Preferably, the bus bar should be about twice as thick as the resonators.

REFERENCES:
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patent: 4364017 (1982-12-01), Tokunaga et al.
patent: 4571519 (1986-02-01), Kawabata at el.
Tiersten et al., Guided Acoustic Surface Wave Filters, Ultrasonics Symp. Proc., IEEE Cat. #75 CHO994-4SU (1975), pp. 293-294.
Lean et al., Scanned Magnetostrictive Sensors, IBM Technical Disclosure Bulletin, vol. 17, #12, 5/75.
Meuvel et al., The Hybrid Transducer, Paper C-8; IEEE Ultrasonics Symp., 9/69, pp. 1-8.

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