发明申请
- 专利标题： Surface Acoustic Wave Filter and Duplexer Using Same
- 专利标题（中）： 表面声波滤波器和双工器使用相同
-
申请号： US13379617申请日： 2010-06-25
-
公开(公告)号： US20120098618A1公开(公告)日： 2012-04-26
- 发明人: Hiroyuki Tanaka
- 申请人： Hiroyuki Tanaka
- 申请人地址： JP Kyoto-shi, Kyoto
- 专利权人： KYOCERA CORPORATION
- 当前专利权人： KYOCERA CORPORATION
- 当前专利权人地址： JP Kyoto-shi, Kyoto
- 优先权： JP2009-152688 20090626; JP2009-248902 20091029
- 国际申请： PCT/JP2010/060878 WO 20100625
- 主分类号： H03H9/72
- IPC分类号： H03H9/72 ; H03H9/64
摘要：
An SAW filter and a duplexer excellent in electrical characteristics will be provided. An SAW filter has a piezoelectric substrate 40, a surface acoustic wave element 10 having a first IDT electrode 1 on the piezoelectric substrate 40, a first signal line 31 electrically connected to the first IDT electrode 1, and a ring-shaped reference potential line 9 which has a first intersecting portion intersecting with the first signal line 31 through an insulation member 41 and surrounds the surface acoustic wave element 10.
公开/授权文献
- US09041487B2 Surface acoustic wave filter and duplexer using same 公开/授权日：2015-05-26
信息查询
IPC分类:
