Title:
ANTENNA DIRECTIVITY CONTROL SYSTEM AND WIRELESS DEVICE PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2015/108133
Kind Code:
A1
Abstract:
Provided is an antenna directivity control system, comprising: an antenna having a plurality of antenna elements having different feed points; and a control means for controlling the weights of the antenna elements. The plurality of antenna elements each comprise: a feed element which is connected to the feed point; and a radiating element which is fed by being electromagnetically coupled to the feed element and functions as a radiating conductor. The control means adjusts the amplitude of signals at each of the feed points and controls the directivity of the antenna.
Inventors:
SAYAMA TOSHIKI (JP)
SONODA RYUTA (JP)
IKAWA KOJI (JP)
SONODA RYUTA (JP)
IKAWA KOJI (JP)
Application Number:
PCT/JP2015/051017
Publication Date:
July 23, 2015
Filing Date:
January 16, 2015
Export Citation:
Assignee:
ASAHI GLASS CO LTD (JP)
International Classes:
H01Q3/28; H01Q1/24; H01Q19/26; H01Q21/28
Foreign References:
| JP2006186600A | 2006-07-13 | |||
| JP2003198410A | 2003-07-11 | |||
| JP2011188385A | 2011-09-22 | |||
| JP2006270730A | 2006-10-05 |
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
Tadashige Ito (JP)
Tadashige Ito (JP)
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