Free edge reflective-type surface acoustic wave device

Details Free edge reflective-type surface acoustic wave device Free edge reflective-type surface acoustic wave device

1996-01-23

1998-02-03

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310313B, H01L 4108

Patent

active

057148309

ABSTRACT:
A surface wave resonator suitable for use in the frequency band range of about 70 to 200 MHz has a wide frequency band characteristic. The resonator is a free edge reflective-type surface wave resonator having a pair of comb-like electrodes formed on the upper surface of a piezoelectric substrate made of 41.degree. Y-cut X propagating piezoelectric single crystals of LiNbO.sub.3, wherein SH-type leaky waves are reflected between two opposing free edges of the resonator.

REFERENCES:
patent: Re35204 (1996-04-01), Lewis
patent: 3680009 (1972-07-01), Slobodnik et al.
patent: 4016440 (1977-04-01), Wagers
patent: 4544857 (1985-10-01), Shimizu et al.
patent: 5260913 (1993-11-01), Kadota et al.
Some Studies on Saw Resonators and Multiple-Mode Filters--Y. Suzuki, H. Shimizu, M. Takeuchi, K. Nakamura and A. Yamada--Faculty of Engineering, Toboku University, Sendai, Japan--pp. 297-302.

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