Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ANTENNA DEVICE AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/054005
Kind Code:
A1
Abstract:
This antenna device (101A, 101B) comprises: a first radiating element (10); a second radiating element (20) with lower radiation efficiency than the first radiating element (10); a coupling element (30) that has a first coil (L1) and a second coil (L2) that are electromagnetically field coupled to each other; a first phase adjustment element (31); and a second phase adjustment element (32). With the first phase adjustment element (31) and the second phase adjustment element (32), in the resonance frequency that the second radiating element (20) has, a prescribed ratio of the current flowing in the second radiating element (20) is induced in the first radiating element (10). It is thereby possible to obtain an antenna device and an electronic apparatus comprising same, said antenna device comprising a parasitic radiating element provided in a limited installation region, and having a band widened by a power-feeding radiation element and the parasitic radiating element;

Inventors:
NASU TAKAFUMI (JP)
ISHIZUKA KENICHI (JP)
Application Number:
PCT/JP2020/030806
Publication Date:
March 25, 2021
Filing Date:
August 13, 2020
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01Q5/10; H01Q5/335; H01Q5/392; H01Q5/50; H01Q21/30
Domestic Patent References:
WO2019017098A12019-01-24
WO2018101284A12018-06-07
WO2018101285A12018-06-07
WO2019208044A12019-10-31
Foreign References:
JP2014053808A2014-03-20
Attorney, Agent or Firm:
KAEDE PATENT ATTORNEYS' OFFICE (JP)
Download PDF: