Title:
HIGH-FREQUENCY FILTER ELEMENT
Document Type and Number:
Japanese Patent JP2002175920
Kind Code:
A
Abstract:
To provide a distributed constant line type filter element for high frequency having a steep damping characteristics.
This high-frequency filter element is constituted, in such a way that a coil-like conductor is provided in a magnetic insulator section 1 formed into a columnar shape. In addition, a grounding electrode 4 which forms a distributed constant line, together with the conductor 2 via the insulator section 1 is provided around the section 1. The conductor 2 is equipped with a first coil-like conductor 2a and a second coil-like conductor 2b, which is provided to generate a negative mutual inductance with respect to the first conductor 2a.
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Inventors:
UCHIDA KATSUYUKI
Application Number:
JP2000375110A
Publication Date:
June 21, 2002
Filing Date:
December 08, 2000
Export Citation:
Assignee:
MURATA MANUFACTURING CO
International Classes:
H01F17/00; H01F27/00; H03H7/075; H03H7/09; (IPC1-7): H01F27/00; H01F17/00; H03H7/075; H03H7/09
Attorney, Agent or Firm:
Kenzo Hara
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