公开(公告)号：US20080129416A1

公开(公告)日：2008-06-05

申请号：US11845362

申请日：2007-08-27

Applicant: Alexandre VOLATIER ,  Pascal Ancey ,  Bertrand Dubus

Inventor： Alexandre VOLATIER ,  Pascal Ancey ,  Bertrand Dubus

IPC: H03H9/00 ,  H01L41/22

CPC classification number: H03H9/60 ,  H03H9/583 ,  H03H9/584 ,  H03H9/587 ,  H03H9/588 ,  H03H9/589 ,  Y10T29/42

Abstract: A switchable filter may include a first acoustic resonator including first electrodes, and a first resonant layer between the first electrodes and having electrostrictive material. The switchable filter may further include a second acoustic resonator including second electrodes, and a second resonant layer between the second electrodes and having electrostrictive material. The second acoustic resonator may be acoustically coupled with the first acoustic resonator. At least one of the first electrodes and at least one of the second electrodes may be arranged between the first resonant layer and the second resonant layer. The electrostrictive material may adjust a resonance and a filter switching of the first and second acoustic resonators as a function of a control voltage applied to terminals of the first and second acoustic resonators. Two electrodes from one of the first electrodes and the second electrodes may be filter input electrodes. Two electrodes from one of the first electrodes and the second electrodes may be filter output electrodes.

Abstract translation: 可切换滤波器可以包括包括第一电极的第一声谐振器和在第一电极之间并具有电致伸缩材料的第一谐振层。 可切换滤波器还可以包括包括第二电极的第二声谐振器和在第二电极之间并具有电致伸缩材料的第二谐振层。 第二声谐振器可以与第一声谐振器声学耦合。 第一电极中的至少一个和第二电极中的至少一个可以布置在第一谐振层和第二谐振层之间。 电致伸缩材料可以根据施加到第一和第二声谐振器的端子的控制电压来调节第一和第二声谐振器的谐振和滤波器切换。 来自第一电极和第二电极之一的两个电极可以是滤波器输入电极。 来自第一电极和第二电极之一的两个电极可以是滤波器输出电极。