Title:
アンテナ装置及び受信装置
Document Type and Number:
Japanese Patent JP4769629
Kind Code:
B2
Abstract:
It is an object of the present invention to provide an antenna capable of reducing a backside gain while keeping the sensitivity of overall antenna to a certain level. Particularly, in the case of an antenna subject to a circularly polarized wave, it is an object of the invention to provide an antenna capable of reducing the sensitivity of a left-handed circularly polarized wave more than ever before as well as keeping the sensitivity of a right-handed circularly polarized wave to a certain level. The antenna of the invention includes a plurality of ground conductors, a radiation conductor provided via a dielectric on a part of the above-mentioned ground conductor. The notch is formed on at least one of the above-mentioned ground conductors. The notch is formed outside of the area opposite to the above-mentioned radiation conductor.
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Inventors:
Kenichi Iio
Application Number:
JP2006133539A
Publication Date:
September 07, 2011
Filing Date:
May 12, 2006
Export Citation:
Assignee:
FURUNO ELECTRIC COMPANY,LIMITED
International Classes:
H01Q13/08
Domestic Patent References:
| JP2005192165A | ||||
| JP10335924A | ||||
| JP2003115715A | ||||
| JP2006067260A | ||||
| JP11284429A | ||||
| JP3107203A | ||||
| JP2006148688A |
Attorney, Agent or Firm:
Masatsugu Odong