发明授权
US07012480B2 Surface acoustic wave filter, balanced type filter and communication device
有权
表面声波滤波器，平衡型滤波器和通信装置
- 专利标题： Surface acoustic wave filter, balanced type filter and communication device
- 专利标题（中）： 表面声波滤波器，平衡型滤波器和通信装置
-
申请号： US10850243申请日： 2004-05-20
-
公开(公告)号： US07012480B2公开(公告)日： 2006-03-14
- 发明人: Hiroyuki Nakamura , Narihiro Mita , Shigeru Tsuzuki , Toru Yamada
- 申请人： Hiroyuki Nakamura , Narihiro Mita , Shigeru Tsuzuki , Toru Yamada
- 申请人地址： JP Osaka
- 专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址： JP Osaka
- 代理机构： RatnerPrestia
- 优先权： JP2001-165730 20010531; JP2001-255280 20010824; JP2001-349885 20011115
- 主分类号： H03H9/64
- IPC分类号： H03H9/64 ; H03H9/72 ; H03H9/42
摘要：
A balanced type filter includes at least one balanced type terminal. At least one predetermined reactance element is connected between the balanced type terminal and another terminal. A parallel resonance circuit is formed by parasitic components existing between the balanced type terminal and the other terminal, and the reactance element. The other terminal is of balanced type or unbalanced type.
公开/授权文献
信息查询
