Title:
ANTENNA DEVICE AND PORTABLE WIRELESS EQUIPMENT COMPRISING THE SAME
Document Type and Number:
Japanese Patent JP2017204776
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To increase a communication distance of an antenna device.SOLUTION: An antenna device comprises: a first metal layer 101 that has first and second regions 111 and 112; a coil pattern 10A that has first and second terminals 13 and 14; a first wiring pattern P1 connected between the first region 111 of the first metal layer 101 and the first terminal 13 of the coil pattern 10A; and a second wiring pattern P2 connected between the second region 112 of the first metal layer 101 and the second terminal 14 of the coil pattern 10A. At least a part of a loop antenna 10L is formed by the first metal layer 101, the first wiring pattern P1, and the second wiring pattern P2. Due to this invention, since the antenna device is configured by the coil pattern and the loop antenna, a communication distance can be increased compared with a case where the antenna device is configured only by the loop antenna.SELECTED DRAWING: Figure 9
Inventors:
KOMACHI TOSHIFUMI
TOMONARI TOSHIO
ASO HIROFUMI
TOMONARI TOSHIO
ASO HIROFUMI
Application Number:
JP2016096309A
Publication Date:
November 16, 2017
Filing Date:
May 12, 2016
Export Citation:
Assignee:
TDK CORP
International Classes:
H01Q7/04; H01Q1/24; H01Q5/328; H01Q5/335; H01Q7/06; H04M1/02
Attorney, Agent or Firm:
Mitsuhiro Washito
Ogata Japanese
Yasuyuki Kurose
Ogata Japanese
Yasuyuki Kurose