发明授权
- 专利标题： Band elimination filter and dielectric resonator therefor
- 专利标题（中）： 带除滤波器及其介质谐振器
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申请号： US414133申请日： 1989-09-28
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公开(公告)号： US4996506A公开(公告)日： 1991-02-26
- 发明人: Youhei Ishikawa , Toshiro Hiratsuka , Hirotsugu Abe , Hisashi Takagaki , Sadao Yamashita
- 申请人： Youhei Ishikawa , Toshiro Hiratsuka , Hirotsugu Abe , Hisashi Takagaki , Sadao Yamashita
- 申请人地址： JPX
- 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： JPX
- 优先权： JPX63-243173 19880928; JPX63-126591[U] 19880928
- 主分类号： H01P1/205
- IPC分类号： H01P1/205 ; H01P7/10
摘要：
A band elimination filter which includes at least one or more TM-mode dielectric resonators each including a ceramic casing with an electrically conductive film formed over its inner surface or outer surface, and a dielectric column disposed in a cavity in the ceramic casing, and an electrode provided on the ceramic casing, out of contact with the electrically conductive film, with transmission lines being connected to the electrode.
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