Acoustic surface wave device with improved transducer

Details Acoustic surface wave device with improved transducer Acoustic surface wave device with improved transducer

1976-09-01

1979-03-06

Smith, Alfred E.

Wave transmission lines and networks

Coupling networks

Delay lines including elastic surface wave propagation means

310313, 310366, 333194, H03H 904, H03H 926, H03H 930, H01L 4110

Patent

active

041433408

ABSTRACT:
An acoustic surface wave device having a substrate of a material capable of propagating acoustic surface wave energy. At least one electro-acoustic transducer coupled to a region of a surface of the substrate. The transducer has a first and a second bus bar positioned parallel and a distance from each other. A plurality of electrodes extend from each bus bar. The electrodes from the first bus bar are opposite to the electrodes of the second bus bar with the electrodes from one of the bus bars being forked and surrounding the electrode located in an opposite relationship thereto, thus, reducing substantially any synchronous reflections.

REFERENCES:
patent: 3633132 (1972-01-01), Hartemann
patent: 3831116 (1974-08-01), Davis, Jr. et al.
patent: 3894251 (1975-07-01), Shibayama et al.
patent: 3931597 (1976-01-01), Cho et al.
patent: 4006438 (1977-02-01), Bennett

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