Title:
FILTER DEVICE, ANTENNA DEVICE, AND ANTENNA MODULE
Document Type and Number:
WIPO Patent Application WO/2023/090250
Kind Code:
A1
Abstract:
A filter device (100) comprises: an LC-series resonator (RC1) for series resonance at a series resonance frequency (F1) by an inductor (L1) and a capacitor (C1); and an LC-series resonator (RC2) for series resonance at a series resonance frequency (F2) by an inductor (L2) and a capacitor (C2). In the filter device (100), the LC-series resonator (RC1) and the LC-series resonator (RC2) are connected in parallel, and are in parallel resonance at a parallel resonance frequency (F3). The series resonance frequency (F2) is lower than the series resonance frequency (F1), and the parallel resonance frequency (F3) is between the series resonance frequency (F1) and the series resonance frequency (F2).
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Inventors:
TACHIBANA SHINYA (JP)
Application Number:
PCT/JP2022/041921
Publication Date:
May 25, 2023
Filing Date:
November 10, 2022
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03H5/02; H01P1/20; H01Q5/314; H01Q21/28; H03H7/09
Foreign References:
| JP2000036721A | 2000-02-02 | |||
| JP2016122706A | 2016-07-07 | |||
| JP2016092525A | 2016-05-23 | |||
| JP2015159488A | 2015-09-03 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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