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Title:
DIRECTIONAL CHARACTERISTIC VARIABLE ANTENNA
Document Type and Number:
Japanese Patent JP2014165754
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a directional characteristic variable antenna capable of facilitating change and adjustment of a directional characteristic at and after the installation.SOLUTION: Around an antenna, there is provided a directional characteristic changing member for changing a directional characteristic of the antenna by absorbing or reflecting an electric wave in the vicinity to the antenna. In addition, there is provided an adjustment device for adjusting a positional relationship between the directional characteristic changing member and the antenna and maintaining a state thereof.

Inventors:
TANAKA MASANORI
MAEDA TAKASHI
IEUJI SAKU
Application Number:
JP2013036170A
Publication Date:
September 08, 2014
Filing Date:
February 26, 2013
Export Citation:
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Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
H01Q3/20; H01Q15/18; H01Q17/00; H01Q19/185
Domestic Patent References:
JP2003178341A2003-06-27
JPH088631A1996-01-12
JP2003060431A2003-02-28
JP2007336356A2007-12-27
JP2001357423A2001-12-26
Attorney, Agent or Firm:
Minoru Kudo
Keisaku Nakao