CYLINDRICAL CAVITY RESONATOR TYPE FILTER AND CYLINDRICAL CAVITY RESONATOR

PROBLEM TO BE SOLVED: To provide a cylindrical cavity resonator type filter which improves attenuating characteristics of a frequency band which is slightly higher than a passing band. SOLUTION: In the cylindrical cavity resonator type filter, a plurality of the cylindrical cavity resonators 1, in w...

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Bibliographic Details
Main Authors TANAKA TOSHIHIRO, KOBAYASHI TOA
Format Patent
LanguageEnglish
Published 24.09.2004
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
WAVEGUIDES
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Summary:PROBLEM TO BE SOLVED: To provide a cylindrical cavity resonator type filter which improves attenuating characteristics of a frequency band which is slightly higher than a passing band. SOLUTION: In the cylindrical cavity resonator type filter, a plurality of the cylindrical cavity resonators 1, in which open windows are formed to the input end and the output end for electromagnetic waves, are mutually connected via a hole part of a coupling plate 6b through the open window formed to its own flange 11 and the open window formed to a flange 11 of the other cylindrical cavity resonator. A conductive member is mounted to the open window of each cylindrical cavity resonator 1. The conductive member does not substantially affect the resonance frequency in a basic mode compared with the state before mounting it. It only enhances the resonance frequency in a high-order mode. COPYRIGHT: (C)2004,JPO&NCIPI
Bibliography:Application Number: JP20030055977