Title:
ANTENNA
Document Type and Number:
Japanese Patent JP3296399
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an antenna with which the shape of upper surface is made thin and horizontal plane gain characteristics are uniform.
SOLUTION: The vertical beam width of beams 12-1, 12-3, 12-4 and 12-6 positioned in the azimuth of mirror symmetricity to the plane direction of antenna 1, among four beams from 12-1 to 12-6 at least generated from antenna 11, is made n-fold as wide as the vertical beam width of beams 12-2 and 12-5. Besides, the horizontal plane beam width of beams 12-2 and 12-5 is made n-fold as wide as the horizontal beam width of beams 12-1, 12-3, 12-4 and 12-6 so that the radiation gain in all the horizontal plane azimuths of antenna 1 can be uniformly covered.
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Inventors:
Kazuhiro Uehara
Kenichi Kagoshima
Tomohiro Seki
Kenichi Kagoshima
Tomohiro Seki
Application Number:
JP24350595A
Publication Date:
June 24, 2002
Filing Date:
September 21, 1995
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
H01Q21/06; G06F1/16; H01Q1/24; H01Q13/08; (IPC1-7): H01Q1/24; H01Q13/08; H01Q21/06
Domestic Patent References:
| JP63303523A | ||||
| JP4347911A | ||||
| JP550811U |
Attorney, Agent or Firm:
Masatake Shiga
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