Multi-bandwidth saw filter

Details Multi-bandwidth saw filter Multi-bandwidth saw filter

1992-12-31

1994-11-15

Pascal, Robert J.

Wave transmission lines and networks

Coupling networks

Electromechanical filter

310313R, H03H 964

Patent

active

053652070

ABSTRACT:
A multi-bandwidth SAW filter for an input signal is provided which includes an SAW transducer having a selectable length corresponding to the desired bandwidth of the filter. The SAW filter is responsive to a control signal which corresponds to a selectable bandwidth of the filter to present the input signal to an appropriately lengthed SAW transducer.

REFERENCES:
patent: 3750027 (1973-07-01), Hartmann
patent: 3831116 (1974-08-01), Davis, Jr. et al.
patent: 3855556 (1974-12-01), Hartmann
patent: 4006290 (1977-02-01), Momberger et al.
patent: 4087714 (1978-05-01), LaRosa et al.
patent: 4207545 (1980-06-01), Grudkowski et al.
patent: 4473888 (1984-09-01), Smith
patent: 4491811 (1985-01-01), Niitsuma et al.
patent: 4622525 (1986-11-01), Brown
patent: 4745378 (1988-05-01), Niitsuma et al.

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