Frequency selector apparatus

Details Frequency selector apparatus Frequency selector apparatus

1979-09-12

1981-03-03

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Electromechanical filter

330 49, 333149, 333194, 357 26, H01L 4104, H01L 2720, H03H 964

Patent

active

042543886

ABSTRACT:
A frequency selector apparatus wherein unidirectional input and output surface-acoustic-wave transducers are provided in an acoustic wave propagation path formed on a piezoelectric device and reflecting electrodes, to which a.c. signals are applied respectively, are disposed in the acoustic wave propagation path on opposite sides of the transducers and adjacent thereto.

REFERENCES:
patent: 3925653 (1975-12-01), Otto
patent: 4162466 (1979-07-01), Hunsinger et al.

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