Title:
ANTENNA DEVICE AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/157244
Kind Code:
A1
Abstract:
An antenna device (101) is configured into an electronic apparatus comprising: a housing that has a conductive frame (10); and a first feeder circuit (1) and a circuit board (20) that are stored in the housing. A radiating element includes a part of the frame (10) and a ground conductor (20G) of the circuit board (20). A part of the frame (10) has a first conductor part (11) and a second conductor part (12). The second conductor part (12) is electrically continuous with the ground conductor (20G) of the circuit board (20). The first conductor (11) has a first end (FE) and a second end (SE). The second end (SE) is disposed close to the second conductor part (12) while the first feeder circuit (1) is connected to the first conductor part (11) via a transformer matching circuit (31). Furthermore, a capacitance part (CP) is formed between the second end (SE) of the first conductor part (11) and the second conductor part (12).
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Inventors:
TANABE TOUMU (JP)
NASU TAKAFUMI (JP)
ISHIZUKA KENICHI (JP)
NASU TAKAFUMI (JP)
ISHIZUKA KENICHI (JP)
Application Number:
PCT/JP2020/048326
Publication Date:
August 12, 2021
Filing Date:
December 24, 2020
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03H7/38; H01Q1/24; H01Q1/50; H01Q9/14
Domestic Patent References:
| WO2016114182A1 | 2016-07-21 |
Foreign References:
| JP3211580U | 2017-07-27 | |||
| US20200021011A1 | 2020-01-16 | |||
| JP2012160817A | 2012-08-23 | |||
| JP2007194995A | 2007-08-02 |
Attorney, Agent or Firm:
KAEDE PATENT ATTORNEYS' OFFICE (JP)
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