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1.发明公开Dielectric filter, dielectric duplexer and communication apparatus incorporating the same 有权的介质滤波器，介质双工器和通信装置具有这样的电路布置
公开(公告)号：EP1093179A2
公开(公告)日：2001-04-18
申请号：EP00121700.9
申请日：2000-10-04
发明人： Tsukamoto, Hideki, (A170)Intellectual Prop. Dept. , Okada, Takahiro, (A170)Intellectual Prop. Dept. , Kuroda, Katsuhito, (A170)Intellectual Prop. Dept. , Ishihara, Jinsei, (A170)Intellectual Prop. Dept. , Kato, Hideyuki, (A170)Intellectual Prop. Dept.
CPC分类号： H01P1/2135 , H01P1/20336 , H01P1/2056 , H01P1/2136
摘要： A dielectric filter and a dielectric duplexer have structures of coupling between resonators, in which a range for determining the coupling strength between the resonators can be broadened and the polarity of the coupling can be changed. In addition, a communication apparatus incorporating the dielectric filter or the dielectric duplexer can be provided. Inside a dielectric member, (1) resonance line holes (2a, 2b) having resonance lines (5a, 5b) formed on the inner surfaces thereof are disposed. Both ends of each of the resonance line holes (2a, 2b) are open-circuited. The inner diameter of each of the resonance line holes (2a, 2b) is changed at some point in the longitudinal direction of each resonance line (5a, 5b) to form a stepped part.
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2.发明授权Dielectric filter, dielectric duplexer and communication apparatus incorporating the same 有权的介质滤波器，介质双工器和通信装置具有这样的电路布置
公开(公告)号：EP1093179B1
公开(公告)日：2006-05-17
申请号：EP00121700.9
申请日：2000-10-04
发明人： Tsukamoto, Hideki, (A170)Intellectual Prop. Dept. , Okada, Takahiro, (A170)Intellectual Prop. Dept. , Kuroda, Katsuhito, (A170)Intellectual Prop. Dept. , Ishihara, Jinsei, (A170)Intellectual Prop. Dept. , Kato, Hideyuki, (A170)Intellectual Prop. Dept.
CPC分类号： H01P1/2135 , H01P1/20336 , H01P1/2056 , H01P1/2136
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