Bandpass mechanical filter

Details Bandpass mechanical filter Bandpass mechanical filter

1980-04-07

1981-12-15

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Electromechanical filter

333197, H03H 950, H03H 952, H03H 960

Patent

active

043062040

ABSTRACT:
A mechanical bandpass filter has a first resonator which is designed to resonate at a first frequency and a second resonator which is designed to resonate at a second frequency. The two resonators are electrically connected together and the input signal is applied to the first resonator and the filtered signal is removed from an electrical connection to the second resonator.

REFERENCES:
patent: 2988714 (1961-06-01), Tehon
patent: 3983516 (1976-09-01), Johnson
Kusakabe et al.-"On The Differential Type Mechanical Filter Composed of Two Transverse-Vibrating Bars", (Prior to Mar. 7, 1980); pp. 203-207, 210-218.
Johnson et al.-"Mechanical Filters and Resonators", IEEE Trans. on Sonics and Ultrasonics; vol. SU-21, No. 4, Oct. 1974; pp. 244-256.
Sheahan et al.-"Crystal and Mechanical Filters", IEEE Trans. on Circuits and Systems, vol. CAS-22, No. 2, Feb. 1975; pp. 69-89.

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