Title:
A radio communications system, an antenna module, and electronic equipment
Document Type and Number:
Japanese Patent JP6110656
Kind Code:
B2
Abstract:
Provided is a wireless communication system which has excellent communication characteristics even between antenna modules having antenna coils between which there is a large difference in outside diameter. The wireless communication system includes: a first antenna module including a first antenna coil; and a second antenna module including a second antenna coil and capable of communication by receiving a magnetic field transmitted from the first antenna module, in which the first antenna coil and the second antenna coil have mutually different outside diameters, and, out of the first antenna coil and the second antenna coil, the antenna coil having a larger outside diameter is formed in such a way that the area of an opening portion inside the innermost perimeter of an antenna pattern is not more than 120% of the outside diameter area of the other antenna coil having a smaller outside diameter.
Inventors:
Katsuhisa Orihara
Norio Saito
Akihiro Fukuda
Hiroyuki Yoshitaka
Masayoshi Kanno
Norio Saito
Akihiro Fukuda
Hiroyuki Yoshitaka
Masayoshi Kanno
Application Number:
JP2012280235A
Publication Date:
April 05, 2017
Filing Date:
December 21, 2012
Export Citation:
Assignee:
Dexerials Co., Ltd.
International Classes:
H01Q7/00; H01Q1/24; H01Q7/06; H01Q9/27
Domestic Patent References:
| JP2001217640A | ||||
| JP2005108110A | ||||
| JP2002246830A | ||||
| JP2001313515A | ||||
| JP2011015376A | ||||
| JP2007214754A |
Attorney, Agent or Firm:
Akira Koike
Seiji Iga
Toshiya Fujii
Nobuhiro Noguchi
Yusei Atsuya
Seiji Iga
Toshiya Fujii
Nobuhiro Noguchi
Yusei Atsuya