Multiple pole surface wave acoustic filters employing angled gro

Details Multiple pole surface wave acoustic filters employing angled gro Multiple pole surface wave acoustic filters employing angled gro

1978-11-29

1980-06-03

Smith, Alfred E.

Wave transmission lines and networks

Coupling networks

Electromechanical filter

333153, 333196, H03H 902, H03H 926, H03H 932, H01L 4110

Patent

active

042064260

ABSTRACT:
A multiple track acoustic surface wave filter processes input signals successively flowing in coupled resonant acoustic tracks, each track being realized between pairs of surface wave reflectors in the surface of a planar piezoelectric substrate.

REFERENCES:
patent: 4013983 (1977-03-01), Hartemann
patent: 4054851 (1977-10-01), Borner et al.
patent: 4065735 (1977-12-01), Palfreeman et al.
patent: 4114119 (1978-09-01), Sandy et al.
Hartemann--"Ion-Implanted Acoustic-Surface-Wave Resonator" in Applied Physics Letters, vol. 28, No. 2, Jan. 15, 1976, pp. 73-75.
Williamson--"Properties and Applications of Reflective-Array Devices" in Proceedings of the IEEE, vol. 64, No. 5, May 1976, pp. 702-710.
Cross et al.--"Design and Applications of Two-Port Saw Resonators on YZ-Lithiumniobate" in Proc. of the IEEE, vol. 64, No. 5, May 1976, pp. 682-685.
Tuan et al.--"Theory for Saw Grooved Reflector Arrays" in IEEE Trans. on Sonics and Ultrasonics, vol. SU-24, No. 6, Nov. 1977, pp. 384-392.

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