Title:
DIELECTRIC WAVEGUIDE FILTER AND MOUNTING STRUCTURE THEREOF
Document Type and Number:
Japanese Patent JP3902072
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a dielectric waveguide filter, which is capable of attaining its input/output matching and preventing an electromagnetical field from leaking out from the exposed part of its dielectric body, so as to reduce its lower loss.
SOLUTION: Rectangular parallelopipe dielectric bodies are linked together into a dielectric waveguide filter, composed of a plurality of dielectric waveguide resonators, and a dielectric protruding end is provided to each of the input/ output end resonators. An input/output terminal conductor strip line is provided to each of the input/output end resonators so as to be equipped with an exposed dielectric part on both its side, extending from the input/output end resonator to the dielectric protruding end and terminated at the end face of the dielectric protruding end. The dielectric waveguide filter is coupled with the microstrip line or the coplanar line of a wiring board, which is formed longer than it is prescribed, so as to attain input/output impedance matching.
Inventors:
Hiroshi Kojima
Hiroyuki Kato
Akira Miyashita
Kazuhisa Sano
Hiroyuki Kato
Akira Miyashita
Kazuhisa Sano
Application Number:
JP2002166381A
Publication Date:
April 04, 2007
Filing Date:
June 07, 2002
Export Citation:
Assignee:
Toko Co., Ltd.
International Classes:
H01P1/203; H01P1/208; H01P1/20; (IPC1-7): H01P1/208; H01P1/20
Domestic Patent References:
| JP63232602A | ||||
| JP62058701A | ||||
| JP2001189601A | ||||
| JP10290104A | ||||
| JP2002135003A | ||||
| JP3270501A | ||||
| JP6169203A |
Foreign References:
| WO2002078119A1 |
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