Mechanical filter

Details Mechanical filter Mechanical filter

1979-11-09

1982-02-02

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Electromechanical filter

333197, H03H 950, H03H 924

Patent

active

043142168

ABSTRACT:
A mechanical filter having at least a pair of mechanical vibrators which are arrayed approximately in parallel with each other in regard to their longitudinal axes, and two couplers which are coupled to the pair of mechanical vibrators. According to the mechanical filter one of the pair of mechanical vibrators undergoes the vibration of the order of an odd number and the other one undergoes the vibration of the order of an even number in the same vibration mode, or both of them undergo the vibration of the order of an odd number or even number in the same vibration mode. Furthermore, these mechanical vibrators have such a mechanical size that they will vibrate at their required order of vibration and at their respective resonance frequencies, and the two couplers are so constructed that they will be differentially coupled to the pair of mechanical vibrators approximately at right angles therewith.

REFERENCES:
patent: 3372351 (1968-03-01), Borner et al.
patent: 3949326 (1976-04-01), Yano et al.

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