Patent ID: 9276557
Filing Date: 2016-03-01
CPC Classification: H03H

Claim Text:
1. An acoustically coupled frequency selective radio frequency (RF) device, comprising: a piezoelectric substrate; a plurality of electrodes overlying the substrate; a pair of RF input terminals, at least one of which is electrically connected to at least one of said electrodes; and a pair of output RF terminals, at least one of which is electrically connected to at least one other of said electrodes; wherein at least some of said electrodes are electromechanically reconfigurable between a state in which the electrode is closer to a face of the piezoelectric substrate such that the electrode is piezoelectrically coupled to the piezoelectric substrate, and at least one state in which the electrode is farther from the face of the piezoelectric substrate, and wherein: an acoustic propagation axis is defined on the piezoelectric substrate; the electrodes of said plurality are elongate in a direction parallel to the face of the substrate and perpendicular to the propagation axis; the plurality of electrodes includes at least an input array of electrodes electrically connected to the input RF terminal and an output array of electrodes electrically connected to the output RF terminal; and the plurality of electrodes includes at least one array of electrodes in which at least some electrodes are individually selectable and that is reconfigurable by changing the selection of electrodes to be placed in the state that is closer to the substrate face.