Surface acoustic wave device and method utilizing plural multi-s

Details Surface acoustic wave device and method utilizing plural multi-s Surface acoustic wave device and method utilizing plural multi-s

1990-11-13

1992-05-05

LaRoche, Eugene R.

Wave transmission lines and networks

Coupling networks

Delay lines including elastic surface wave propagation means

333195, 310313D, H03H 942

Patent

active

051111675

ABSTRACT:
A surface acoustic wave device employs in-line input and output transducers disposed on a piezoelectrically active surface. Two U-configured multi-strip couplers are disposed between the input and output transducers in an overlapped, opposing configuration in order to convolve the side lobe energy from the input transducer across substantially all of the aperture of the output transducer.

REFERENCES:
patent: Re32859 (1989-02-01), Marshall et al.
patent: 3988703 (1976-10-01), De Vries
patent: 4038614 (1977-07-01), Chapman et al.
patent: 4298849 (1981-11-01), Arneson
patent: 4513261 (1985-04-01), Yen et al.

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