Acoustic surface wave device

Details Acoustic surface wave device Acoustic surface wave device

1983-09-13

1985-04-23

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Electromechanical filter

310313A, 310313C, 333151, 333154, H03H 964, H03H 9145, H03H 930

Patent

active

045132623

ABSTRACT:
An acoustic surface wave device using an interdigital electrode array 2, 3 to launch and receive surface waves overcomes problems of diffraction by making the arrays approximately 3.lambda..sub.c wide between the outer boundaries of the bus bars. As a result, the arrays can each only propagate and transduce a single acoustic surface waveguide mode which is symmetrical about the axis of the array.

REFERENCES:
patent: 4409571 (1983-10-01), Milsom et al.
de Klerk-"Ultrasonic Transducers: 3. Surface Wave Transducers", Ultrasonics, Jan. 1971; pp. 35-48.

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