Surface acoustic wave filter with first and second filter tracks

Details Surface acoustic wave filter with first and second filter tracks Surface acoustic wave filter with first and second filter tracks

1998-12-21

2000-08-15

Pascal, Robert

Wave transmission lines and networks

Coupling networks

Electromechanical filter

333195, 333196, H03H 964

Patent

active

061042609

ABSTRACT:
A surface acoustic wave filter. The filter includes two filter tracks which are parallel to each other. Each track has an input interdigital transducer, reflector and output interdigital transducer. This distance between the input transducer and output transducer is the same in both tracks. The distance between the output transducer and reflector is different in the two tracks. The electrical connection is in opposite phase in either the inputs or outputs, but not both. Electrode fingers are arranged in groups of two and have widths and spacings related to the wavelength.

REFERENCES:
patent: 3727155 (1973-04-01), DeVries
patent: 3946342 (1976-03-01), Hartmann
patent: 4178571 (1979-12-01), Mitchell
patent: 4425554 (1984-01-01), Morishita
patent: 5313177 (1994-05-01), Hickernell et al.
patent: 5349260 (1994-09-01), Anemogiannis et al.
patent: 5357228 (1994-10-01), Dufilie
patent: 5379010 (1995-01-01), Ruile et al.
patent: 5475348 (1995-12-01), Hode et al
patent: 5521565 (1996-05-01), Anemogiannis
patent: 5646584 (1997-07-01), Kondratyev et al.
patent: 5661444 (1997-08-01), Dill et al.
patent: 5663695 (1997-09-01), Tanaka et al.
patent: 5831494 (1998-11-01), Solie
patent: 5896071 (1999-04-01), Dai et al.
patent: 5896072 (1999-04-01), Bergmann et al.

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