Filter with acoustically coupled resonators

Details Filter with acoustically coupled resonators Filter with acoustically coupled resonators

2007-12-04

2007-12-04

Summons, Barbara (Department: 2817)

Wave transmission lines and networks

Coupling networks

Electromechanical filter

C333S195000

Reexamination Certificate

active

10508979

ABSTRACT:
A component operating with surface-proximal acoustic waves, in particular a filter with novel structure, has interdigital transducers arranged in serial and parallel branches, which are acoustically coupled with one another in different configurations. The component provides a loss-poor filter with simultaneously space-saving arrangement of the filter elements.

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Ruppel et al, “SAW Devices for Consumer Communication Applications”,IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, vol. 40, No. 5, Sep. 1993, pp. 438-452.

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