Title:
ANTENNA MODULE, COMMUNICATION DEVICE HAVING ANTENNA MODULE MOUNTED THEREON, AND CIRCUIT BOARD
Document Type and Number:
WIPO Patent Application WO/2021/039075
Kind Code:
A1
Abstract:
An antenna module (100) is provided with: a multilayer-structured dielectric substrate (130); a radiation element (125); a power supply wiring (140); a filter device (105); and a ground electrode (GND1). The dielectric substrate has a first main surface (131) and a second main surface (132). The radiation element is formed on the first main surface of the dielectric substrate or in a layer on the inner side of the first main surface. A high-frequency signal is transmitted through the power supply wiring to the radiation element. The filter device is disposed in the power supply wiring. The ground electrode (GND1) is disposed in a layer between the radiation element and the filter device so as to face the radiation element. A recess (170) is formed in the second main surface of the dielectric substrate. The filter device is disposed at a position not overlapping the recess in a planar view from the normal direction of the dielectric substrate.
Inventors:
ARAI KOTA (JP)
Application Number:
PCT/JP2020/024808
Publication Date:
March 04, 2021
Filing Date:
June 24, 2020
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01Q1/24; H01Q13/08; H01Q23/00
Domestic Patent References:
| WO2018074377A1 | 2018-04-26 | |||
| WO2014045966A1 | 2014-03-27 |
Foreign References:
| JP2004274259A | 2004-09-30 | |||
| JP2005019649A | 2005-01-20 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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