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Title:
SURFACE RADIATION TYPE ANTENNA
Document Type and Number:
Japanese Patent JPH09116332
Kind Code:
A
Abstract:

To provide high gain/wide band performance not to fluctuate the radiation center of radio wave even at the time of wide band usage.

A surface radiation type antenna has a rectangular frame-shaped antenna element 3, for which the ratio of length between a short side 1 and a long side 2 is set from 1:2 to 1:6 and the length of the long side 2 is almost set to be 1/2 as long as a wavelength to be used or set equal with the wavelength to be used, and is provided with totally two pairs of power feeding points 4, 4, 4 and 4, two by two on the respective long sides 2 and 2, at the positions almost from 1/3 to 1/8 of a full length from both ends on the respective long sides 2 and 2. Then, the antenna element 3 is cylindrically formed so that the respective long sides 2 can form the outer edges of upper and lower terminal parts and the height equal with the short side 1 can be provided.


Inventors:
YAMAMOTO KIYOSHI
Application Number:
JP27433895A
Publication Date:
May 02, 1997
Filing Date:
October 23, 1995
Export Citation:
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Assignee:
SOUDAI KK
F II C KK
International Classes:
H01Q13/10; H01Q9/26; (IPC1-7): H01Q13/10
Attorney, Agent or Firm:
Nobumichi Miyata
Tadaaki Matsuda



 
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