Title:
アンテナ装置
Document Type and Number:
Japanese Patent JP6558106
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To efficiently arrange a planar coil antenna and a high frequency antenna in a limited space in a housing of a portable radio device and secure good antenna characteristics of the planar coil antenna and the high frequency antenna.SOLUTION: An antenna device 1 includes: a planar coil antenna 10 having a loop shape or a spiral shape; a high frequency antenna 20 which is provided so as to overlap with a part of the planar coil antenna 10 in a plan view; and a magnetic sheet 30 which overlaps with other part of the planar antenna 10 and does not overlap with the high frequency antenna 20 in the plan view.SELECTED DRAWING: Figure 3
Inventors:
Toshifumi Komachi
Hirofumi Aso
Tomonari Toshio
Hirofumi Aso
Tomonari Toshio
Application Number:
JP2015136738A
Publication Date:
August 14, 2019
Filing Date:
July 08, 2015
Export Citation:
Assignee:
tdk Corporation
International Classes:
H01Q7/04; H01Q1/24; H01Q7/06; H01Q21/28
Domestic Patent References:
| JP2007060382A | ||||
| JP2016213540A |
Attorney, Agent or Firm:
Mitsuhiro Washito
Ogata Japanese
Yasuyuki Kurose
Ogata Japanese
Yasuyuki Kurose