Resonator and resonant component utilizing width vibration mode

Details Resonator and resonant component utilizing width vibration mode Resonator and resonant component utilizing width vibration mode

1996-04-02

1998-02-10

Lee, Benny

Wave transmission lines and networks

Coupling networks

Electromechanical filter

310348, 310367, H03H 900

Patent

active

057173656

ABSTRACT:
A piezoelectric resonator adapted for use in the band from several hundreds of kilohertz to 2 MHz utilizes a newly discovered width vibration mode and permits use of a simplified support structure which reduces stress on the resonator and reduces the overall size of the resonator. The resonator has a substantially rectangular cross-sectional shape having a pair of shorter sides and a pair of longer sides. To achieve the newly discovered vibration mode, the ratio of the length b of the longer sides to the length a of the shorter sides is set to be within +10% of a value given by

REFERENCES:
patent: 3891872 (1975-06-01), Nagata et al.
patent: 4511202 (1985-04-01), Kasai
patent: 5084647 (1992-01-01), Inoue et al.
patent: 5548179 (1996-08-01), Kaida

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