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Title:
STACKED LC FILTER
Document Type and Number:
WIPO Patent Application WO/2018/066339
Kind Code:
A1
Abstract:
The present invention provides a stacked LC filter in which the strength of magnetic coupling between inductors of adjacent LC resonators is adjusted without increasing the size thereof. A magnetic coupling adjustment inductor is provided in at least one LC resonator, the magnetic coupling adjustment inductor is formed by connecting a track-shaped conductor pattern 5a and a via conductor 2f, the track-shaped conductor pattern 5a is connected to a middle point X of a via conductor 2h, the via conductor 2f is connected to a ground conductor pattern 3, and a loop inductor of the LC conductor in which the magnetic coupling adjustment inductor is provided and the magnetic coupling adjustment inductor are magnetically coupled to a loop inductor of another LC resonator adjacent thereto.

Inventors:
OISHI, Akihito (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
Application Number:
JP2017/033356
Publication Date:
April 12, 2018
Filing Date:
September 14, 2017
Export Citation:
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Assignee:
MURATA MANUFACTURING CO., LTD. (10-1, Higashikotari 1-chome Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
International Classes:
H03H7/075; H01F17/00; H01F27/00; H03H7/09
Attorney, Agent or Firm:
KAWAMOTO, Takashi (Kawamoto Patent Office, Takemi-Building 411 218 Kannonji-cho, Fushimi-ku, Kyoto-sh, Kyoto 01, 〒6128101, JP)
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