End face reflection type surface wave resonator

Details End face reflection type surface wave resonator End face reflection type surface wave resonator

1996-03-28

1997-11-04

Lee, Benny

Wave transmission lines and networks

Coupling networks

Electromechanical filter

310313R, 333193, H03H 964

Patent

active

056844379

ABSTRACT:
An end face reflection type surface wave resonator utilizing a surface wave of an SH type is constructed by forming comb electrodes on one major surface of a piezoelectric substrate, which constitute an IDT, and forming grooves extending from one major surface to the other major surface to form a pair of end faces on which a surface wave is to be reflected the resonator having piezoelectric plate portions outside the grooves.

REFERENCES:
patent: 4012650 (1977-03-01), Pratt et al.
patent: 4237433 (1980-12-01), Tanski
patent: 4993000 (1991-02-01), Niitsuma et al.
patent: 5185548 (1993-02-01), Egara et al.
patent: 5196753 (1993-03-01), Greer

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