Surface wave resonator system having additional transducer betwe

Details Surface wave resonator system having additional transducer betwe Surface wave resonator system having additional transducer betwe

1991-11-15

1993-03-16

Pascal, Robert J.

Oscillators

Solid state active element oscillator

Significant distributed parameter resonator

333195, 310313D, H03B 500

Patent

active

051948303

ABSTRACT:
An SW resonator has a substrate of piezoelectric material. Two reflectors are applied onto the one substrate side. Input and output transducers are situated between the reflectors. The SW resonator is expanded to form an SW resonator having three electrical gates by arranging an additional transducer between the reflectors.

REFERENCES:
patent: 3970970 (1976-07-01), Worley
patent: 4897621 (1990-01-01), Masuda
patent: 5021699 (1991-06-01), Dufilie
Herbert Matthews, "Surface Wave Filters", John Wiley and Sons, New York, London, Sidney, Toronto, 1977, pp. 412-440.
Martin et al., Zinc-oxide -on-silicon Surface Acoustic Wave Resonators, Appl. Phys. Lett. 37(8), Oct. 15, 1980, pp. 700-701.

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