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Title:
MULTILAYER BOARD, LOW-PASS FILTER, HIGH-PASS FILTER, MULTIPLEXER, HIGH-FREQUENCY FRONT-END CIRCUIT, AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/160139
Kind Code:
A1
Abstract:
The purpose of the present invention is to suppress the occurrence of stray capacitance. A multilayer board (1) comprises: a pair of first capacitor electrodes (31, 32); a pair of second capacitor electrodes (41, 42); and a dielectric substrate (2). The pair of first capacitor electrodes (31, 32) is provided on the dielectric substrate (2) so as to face opposite each other in a thickness direction (D1) of the dielectric substrate 2. The pair of second capacitor electrodes (41, 42) is provided on the dielectric substrate (2) so as to face opposite each other in the thickness direction (D1). A first element and a second element, the pair of second capacitor electrodes (41, 42), the pair of first capacitor electrodes (31, 32), and a ground electrode are positioned in this order in the thickness direction (D1) on the dielectric substrate (2). At least a portion of the pair of second capacitor electrodes (41, 42) overlaps the pair of first capacitor electrodes (31, 32) in the plan view of the thickness direction (D1).

Inventors:
TSUKAMOTO, Hideki
Application Number:
JP2019/005867
Publication Date:
August 22, 2019
Filing Date:
February 18, 2019
Export Citation:
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Assignee:
MURATA MANUFACTURING CO., LTD. (10-1, Higashikotari 1-chome Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
International Classes:
H03H7/01; H03H7/46; H04B1/40; H05K3/46
Domestic Patent References:
WO2015059963A12015-04-30
WO2017002661A12017-01-05
WO2009072251A12009-06-11
Foreign References:
JP2002016467A2002-01-18
JP2003046358A2003-02-14
JP2004336250A2004-11-25
JP2007123993A2007-05-17
Attorney, Agent or Firm:
HOKUTO PATENT ATTORNEYS OFFICE (Umeda Square Bldg, 12-17 Umeda 1-chome, Kita-ku, Osaka-sh, Osaka 01, 〒5300001, JP)
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