Title:
ANTENNA DEVICE AND WIRELESS COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/079430
Kind Code:
A1
Abstract:
Provided are an antenna device which can be operated for multiple frequencies and allows simple miniaturisation, and a wireless communication device comprising said antenna device. This antenna device comprises: a dielectric substrate; a planar first antenna element which operates with waves of a first frequency and is provided on one surface of the dielectric substrate, one end of said first antenna element being electrically connected to a power supply unit provided on the other surface of the dielectric substrate; and a planar second antenna element which operates with waves of a second frequency, is provided on the other surface so as to at least partly overlap the first antenna element in a plan view of the dielectric substrate, one end of said second antenna element being electrically connected to a grounding unit provided on said other surface, the other end being positioned closer to the power supply unit than the grounding unit.
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Inventors:
SHINOJIMA TAKAHIRO (JP)
KOGA YOHEI (JP)
BAN YASUMITSU (JP)
TONOOKA TABITO (JP)
SAKITA SATOSHI (JP)
YOSHIKAWA MANABU (JP)
KOGA YOHEI (JP)
BAN YASUMITSU (JP)
TONOOKA TABITO (JP)
SAKITA SATOSHI (JP)
YOSHIKAWA MANABU (JP)
Application Number:
PCT/JP2019/041501
Publication Date:
April 29, 2021
Filing Date:
October 23, 2019
Export Citation:
Assignee:
FUJITSU CONNECTED TECH LTD (JP)
International Classes:
H01Q5/378; H01Q1/38; H01Q5/385; H01Q9/30
Foreign References:
| US20150288074A1 | 2015-10-08 | |||
| US20080258979A1 | 2008-10-23 | |||
| JP2004201278A | 2004-07-15 |
Attorney, Agent or Firm:
IP FIRM SHUWA (JP)
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