发明名称 |
Dielectric resonator, dielectric filter, dielectric duplexer, and communication apparatus incorporating the same |
摘要 |
The present invention provides a dielectric resonator, a dielectric filter, a dielectric duplexer capable of reducing leakage of electromagnetic waves and capable of being miniaturized, and a communication apparatus incorporating the same. In each of the dielectric resonator and filter, inside a dielectric block, there is formed a L-shaped inner-conductor-formed hole having a bend at some point of the hole in a manner extending from an outer surface of the dielectric block to a surface perpendicular to the outer surface. An inner conductor is formed on the inner surface of the inner-conductor-formed hole. On the substantially entire outer surfaces of the dielectric block, there is disposed an outer conductor, with one end of the inner-conductor-formed hole open-circuited and the remaining end of the hole short-circuited. Around the edge of the open-circuited end there is formed an outer coupling electrode. This structure enables formation of the dielectric resonator and the dielectric filter having the L-shaped inner-conductor-formed holes.
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申请公布号 |
US2002030559(A1) |
申请公布日期 |
2002.03.14 |
申请号 |
US20010948329 |
申请日期 |
2001.09.06 |
申请人 |
MURATA MANUFACTURING CO., LTD. |
发明人 |
HIROSHIMA MOTOHARU;KATO HIDEYUKI;TODA JUN |
分类号 |
H01P1/20;H01P1/205;H01P1/213;H01P7/04;(IPC1-7):H01P1/213 |
主分类号 |
H01P1/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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