Title:
DIRECTIONAL ANTENNA FOR WIRELESS LAN
Document Type and Number:
Japanese Patent JP2005045494
Kind Code:
A
Abstract:
To provide a directional antenna for wireless LAN (local area network) whose beam width is adjustable and which can prevent throughput from decreasing.
Provided are a plurality of radiation elements 3a to 3e and switching means 5A and 5B of switching the number of the radiation elements 3a to 3e to radiate radio waves among those radiation elements 3a to 3e.
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Inventors:
SUZUKI SHIGEFUMI
Application Number:
JP2003202446A
Publication Date:
February 17, 2005
Filing Date:
July 28, 2003
Export Citation:
Assignee:
HITACHI CABLE
International Classes:
H01Q3/24; H01Q21/06; H04B7/10; (IPC1-7): H01Q3/24; H01Q21/06; H04B7/10
Attorney, Agent or Firm:
Nobuo Kinutani