发明授权
- 专利标题： Dielectric filter, dielectric duplexer, and communication device
- 专利标题（中）： 介质滤波器，介质双工器和通信设备
-
申请号： US10752577申请日： 2004-01-08
-
公开(公告)号： US06853266B2公开(公告)日： 2005-02-08
- 发明人: Hirofumi Miyamoto
- 申请人： Hirofumi Miyamoto
- 申请人地址： JP Kyoto
- 专利权人： Murata Manufacturing Co., Ltd.
- 当前专利权人： Murata Manufacturing Co., Ltd.
- 当前专利权人地址： JP Kyoto
- 代理机构： Dickstein, Shapiro, Morin & Oshinsky, LLP.
- 优先权： JP2000-391399 20001222
- 主分类号： H01P1/205
- IPC分类号： H01P1/205 ; H01P1/213 ; H01P7/04 ; H01P5/12 ; H01P1/20
摘要：
Resonator holes are provided so as to extend between opposing surfaces of a dielectric filter. At least one of the resonator holes have large-diameter hole portions, and small-diameter hole portions communicating with the large-diameter hole portions, respectively. The small-diameter hole portions are provided in one of the opposing surfaces. The axes of the small-diameter hole portions and the axes of the large-diameter hole portions are displaced, respectively, such that the displacement distance P therebetween is within a range which satisfies the relationship R−r
公开/授权文献
信息查询
