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Patent Searching and Data


Title:
INDUCTOR ELEMENT AND LC FILTER
Document Type and Number:
WIPO Patent Application WO/2014/141559
Kind Code:
A1
Abstract:
Provided are: an inductor element for high-frequency use, having increased inductance, reduced internal resistance, and being capable of obtaining a high Q value; and an LC filter comprising same. The LP filter (1) is formed by a first inductor and a second inductor that are connected in parallel, and a capacitor (C12) connected to a ground. The first inductor and second inductor connected in parallel are connected between in input terminal (IN) and an output terminal (OUT). The capacitor (C12) is connected to the output terminal (OUT). The first inductor and second inductor are formed so as to be magnetic field-coupled in a direction that strengthens the coupling therebetween, if a current input from the input terminal (IN) flows therethrough.

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Inventors:
KISHIMOTO, Ken (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
Application Number:
JP2013/084009
Publication Date:
September 18, 2014
Filing Date:
December 19, 2013
Export Citation:
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Assignee:
MURATA MANUFACTURING CO., LTD. (10-1, Higashikotari 1-chome Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
International Classes:
H03H7/09; H01F17/00; H01F27/00
Foreign References:
JP2003338556A
JP2008205216A
JP2005244286A
JP2010530153A
JP2008042433A
Attorney, Agent or Firm:
KAEDE PATENT ATTORNEYS' OFFICE (1-4-34, Noninbashi Chuo-ku, Osaka-sh, Osaka 11, 〒5400011, JP)
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