Surface acoustic wave resonator filter having randomly interrupt

Details Surface acoustic wave resonator filter having randomly interrupt Surface acoustic wave resonator filter having randomly interrupt

1984-04-13

1986-11-18

LaRoche, Eugene R.

Wave transmission lines and networks

Coupling networks

Electromechanical filter

333153, 310313D, H03H 925

Patent

active

046238557

ABSTRACT:
A surface acoustic wave resonator filter comprises reflector structures whose metallization strips are repeatedly interrupted in length, whereby the arrangement of the interruptions for the individual strips corresponds to a randon distribution.

REFERENCES:
patent: 3952269 (1976-04-01), Bristol
patent: 4072915 (1978-02-01), Mitchell
patent: 4249146 (1981-02-01), Yen et al.
patent: 4267534 (1981-05-01), Tanski
patent: 4340834 (1982-07-01), Sato
Electronics Letters, vol. 16, Oct. 9, 1980, pp. 793-794, "S.A.W. Device Reflectors Weighted by Combination of Withdrawn and Segmented Lines".
IEEE Transactions on Sonics and Ultrasonics, vol. SU-25, No. 3, 1978, pp. 138-146, "A Study of the Q and Modes of SAW Resonators Using Metal `Waffle-Iron` and Strip Arrays".

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