Invention Grant
US08729982B2 Cross-coupling filter elements in resonant structures with bulk waves having multiple harmonic resonances
有权
具有多次谐波谐振的体波的谐振结构中的交叉耦合滤波器元件
- Patent Title: Cross-coupling filter elements in resonant structures with bulk waves having multiple harmonic resonances
- Patent Title (中): 具有多次谐波谐振的体波的谐振结构中的交叉耦合滤波器元件
-
Application No.: US13127920Application Date: 2009-11-05
-
Publication No.: US08729982B2Publication Date: 2014-05-20
- Inventor: Dorian Gachon , Sylvain Ballandras
- Applicant: Dorian Gachon , Sylvain Ballandras
- Applicant Address: FR Paris FR Besancon
- Assignee: Centre National de la Recherche Scientifique (C.N.R.S.),Universite de Franche-Comte
- Current Assignee: Centre National de la Recherche Scientifique (C.N.R.S.),Universite de Franche-Comte
- Current Assignee Address: FR Paris FR Besancon
- Agency: Young & Thompson
- Priority: FR0857517 20081105
- International Application: PCT/FR2009/052138 WO 20091105
- International Announcement: WO2010/052433 WO 20100514
- Main IPC: H03H9/54
- IPC: H03H9/54 ; H03H9/56 ; H03H9/02
Abstract:
The elementary filter of the HBAR type includes two resonators (20, 22) of the HBAR type which are each formed by a transducer (8) and a substrate (12) which are coupled in a suitable manner by electroacoustic waves. The first resonator (20), the second resonator (22) and the coupling element (28) by way of evanescent waves include the same monobloc acoustic substrate (12) which is arranged facing and coupled to the piezoelectric transducer (8) by waves having the same longitudinal or transverse vibration mode through the same reference electrode (10).
Public/Granted literature
Information query
IPC分类:
