Distributed feedback acoustic surface wave oscillator

Details Distributed feedback acoustic surface wave oscillator Distributed feedback acoustic surface wave oscillator

1975-09-12

1977-05-24

Kominski, John

Oscillators

Solid state active element oscillator

Significant distributed parameter resonator

330 55, 333 72, H03B 532, H03B 912

Patent

active

040258769

ABSTRACT:
An acoustic surface wave oscillator is constructed from a semiconductor-piezoelectric acoustic surface wave amplifier by providing appropriate perturbations at the piezoelectric boundary. The perturbations cause Bragg order reflections that maintain acoustic-wave oscillation under certain conditions of gain and feedback.

REFERENCES:
patent: 3388334 (1968-06-01), Adler
patent: 3414779 (1968-12-01), Bohm
patent: 3568079 (1971-03-01), Yoder
patent: 3678304 (1972-07-01), Humphryes et al.
patent: 3679985 (1972-07-01), Fang et al.
patent: 3686579 (1972-08-01), Everett
patent: 3826932 (1974-07-01), Wang
patent: 3909741 (1975-09-01), Harris
Fang et al., IBM Tech. Disc. Bul., vol. 13, No. 11, Apr. 1971.
Fang et al., IBM Tech. Disc. Bul., vol. 12, No. 10, Mar. 1970.
Proc. IEEE, vol. 58, No. 8, Aug. 1970, 1238-1276.

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