Title:
アンテナ装置および無線通信装置
Document Type and Number:
Japanese Patent JP4956412
Kind Code:
B2
Abstract:
There is provided with an antenna device includes a conductive ground plane; an antenna including a radiating element; at least one variable capacitor having one end connected to the conductive ground plane; a plurality of switch elements having one ends connected to the other end of said at least one variable capacitor and other ends connected to the antenna at different locations; a switch controlling unit configured to control an ON/OFF state of each of the switch elements; and a capacitor controlling unit configured to control a capacitance of said at least one variable capacitor.
Inventors:
Maki Nishio
Application Number:
JP2007336557A
Publication Date:
June 20, 2012
Filing Date:
December 27, 2007
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H01Q23/00; H01Q1/50; H04B1/18
Domestic Patent References:
| JP11298231A | ||||
| JP10224142A | ||||
| JP2002261533A | ||||
| JP2002353867A |
Foreign References:
| WO2007084094A1 |
Attorney, Agent or Firm:
Kenji Yoshitake
Yasukazu Sato
Hiroshi Yoshimoto
Yasushi Kawasaki
Suzuki Junsei
Yasukazu Sato
Hiroshi Yoshimoto
Yasushi Kawasaki
Suzuki Junsei