Title:
CIRCULAR POLARIZED ANTENNA
Document Type and Number:
Japanese Patent JP2016092564
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To simplify and down-size an antenna structure, while maintaining the fractional bandwidth of various characteristics well, by narrowing the feeder line width without thinning a substrate.SOLUTION: On the surface of a printed board 60 having a ground pattern formed entirely on the back side, a plurality of radiation elements 11-44 are formed while being arranged in matrix at a predetermined mutual interval, feeder lines 15-45 are formed in a space surrounded by the radiation elements 11-44, and power having a preset phase shift, sequentially, is supplied from the feeder lines 15-45 to the plurality of radiation elements 11-44. Furthermore, a ground pattern is formed to surround the plurality of radiation elements 11-44 and feeder lines 15-45, on the surface of the printed board 60, while spaced apart by a non-conductive area of a constant width.SELECTED DRAWING: Figure 1
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Inventors:
TADA MASATOSHI
Application Number:
JP2014223974A
Publication Date:
May 23, 2016
Filing Date:
November 04, 2014
Export Citation:
Assignee:
HITACHI KOKUSAI YAGI SOLUTIONS INC
International Classes:
H01Q21/24; H01Q13/08; H01Q21/08
Domestic Patent References:
| JPH03157006A | 1991-07-05 | |||
| JPH02180408A | 1990-07-13 | |||
| JP2013214795A | 2013-10-17 |
Foreign References:
| US4063246A | 1977-12-13 |
Attorney, Agent or Firm:
Kurata Masatoshi
Nobuhisa Nogawa
Takashi Mine
Naoki Kono
Katsu Sunagawa
Tadashi Inoue
Tatsushi Sato
Takashi Okada
Nobuhisa Nogawa
Takashi Mine
Naoki Kono
Katsu Sunagawa
Tadashi Inoue
Tatsushi Sato
Takashi Okada