Title:
RESONATOR, FILTER, AND COMMUNICATION DEVICE
Document Type and Number:
Japanese Patent JP3901130
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a resonator that is miniaturized by changing to step impedance and has high Qo, and to provide a filter having the resonator and a communication device.
SOLUTION: On a dielectric substrate 1, a conductive film 10 is formed. The conductive film 10 has conductor openings APa, APb operating as an inductive region and a conductor opening Apc operating as a capacitive region. Contrarily, a resonant element 100, where a multiple step ring resonant element comprising a conductor line aggregate 2' is formed on a substrate 15, is composed and is mounted to the conductor openings APa, APb operating as the inductive region, thus composing the resonator having high Qo.
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Inventors:
Hidaka Aoji
Makoto Abe
Makoto Abe
Application Number:
JP2003173746A
Publication Date:
April 04, 2007
Filing Date:
June 18, 2003
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
H01P7/08; H01P1/201; H05K1/16; H01P1/203; (IPC1-7): H01P7/08; H01P1/203; //H05K1/16
Domestic Patent References:
| JP2001251110A | ||||
| JP2000049512A | ||||
| JP10209720A | ||||
| JP3295301A | ||||
| JP62183202A | ||||
| JP2000244213A |
Attorney, Agent or Firm:
Hisao Komori