BAND PASS FILTER USING TEM MODE DIELECTRIC RESONATOR

Title:

BAND PASS FILTER USING TEM MODE DIELECTRIC RESONATOR

Document Type and Number:

Japanese Patent JP3494109

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a band pass filter using a TEM mode dielectric resonator which has good filtering performance and can be miniaturized.
SOLUTION: This band pass filter is provided with dielectric resonators 40 and 41 including dielectric blocks 400 and 410 respectively having upper plans, a lower plane and four side faces and a waveguide combining part 42 of an evanescent E mode. Each of the resonators 40 and 41 has metallic layers 401, 411; 402, 412 coated respectively to the upper plane and the lower plane and metallic layers 403, 413 coated to one of the four side faces, the side surface coated with the layers 403 and 413 are made to be short-circuited surfaces and the other three side surfaces are made to be open surfaces so as to operate as a λ/4 dielectric resonator and to maintain the TEM mode. The part 42, which combines both of the resonators 40 and 41 by the TEM mode, has a cut-off frequency higher than that of each of them.

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WO/2012/102385	TRANSMISSION LINE RESONATOR, BANDPASS FILTER USING TRANSMISSION LINE RESONATOR, SPLITTER, BALANCED-TO-UNBALANCED TRANSFORMER, POWER DISTRIBUTOR, UNBALANCED-TO-BALANCED TRANSFORMER, FREQUENCY MIXER, AND BALANCE-TYPE FILTER
JPH09186524	OSCILLATION CIRCUIT MODULE
WO/2004/105175	RING FILTER AND BROAD-BANDPASS FILTER USING SAME

Inventors:

Arun Chandra Kundu
Kenji Endo

Application Number:

JP2000068554A

Publication Date:

February 03, 2004

Filing Date:

March 13, 2000

Export Citation:

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