Surface acoustic wave multi-channel filter

Details Surface acoustic wave multi-channel filter Surface acoustic wave multi-channel filter

1974-12-20

1976-09-28

Lieberman, Eli

Wave transmission lines and networks

Automatically controlled systems

With control of equalizer and/or delay network

310 81, 310 82, 310 98, 333 1, 333 72, H03H 926, H03H 930, H03H 932, H01L 4108

Patent

active

039835170

ABSTRACT:
A surface acoustic wave filter including a relatively broad band input transducer that launches acoustic energy along a first path, at least one frequency-selective periodic grating filter disposed in the first path and adapted to reflect the energy incident thereon along an intermediate path, at least one frequency selective periodic grating filter disposed in the intermediate path and adapted to reflect the energy incident thereon along an output path to an associated output transducer.

REFERENCES:
patent: 3568102 (1971-03-01), Tseng
patent: 3753164 (1973-08-01), De Vries
Williamson et al., "The Use of Surface-Elastic-Wave Reflection Gratings in Large Time-Bandwidth Pulse-Compression Filters," in IEEE Trans on Microwave Theory and Techniques, vol. MTT 21, No. 4, Apr. 1973, pp. 195-199.

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