Surface-wave-type reflective delay line

Details Surface-wave-type reflective delay line Surface-wave-type reflective delay line

1992-04-08

1994-06-07

Nelli, Raymond A.

Wave transmission lines and networks

Coupling networks

Delay lines including elastic surface wave propagation means

333196, 333154, 333153, H03H 942

Patent

active

053193261

ABSTRACT:
A surface-wave-type reflective delay line includes an input/output interdigital converter, and a plurality of surface wave reflectors. The surface wave reflectors are disposed at positions corresponding to an order of magnitude of half of a particular desired transit time of a surface wave between the input/output interdigital converter and an applicable surface wave reflector and back. At least some of the surface wave reflectors are each shifted by a mathematically random value out of the positions corresponding to half the particular desired transit time.

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G. Riha, H. R. Stocket, R. Veith, W. E. Bulst, RAC-Filters with position weighted metallic strip arrays, 1982, IEEE ultrasonic symposium pp. 83-87.

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