Title:
ANTENNA HAVING ELECTROMAGNETIC WAVE REFLECTOR USING OMNIDIRECTIONAL DIELECTRIC LENS DEVICE
Document Type and Number:
WIPO Patent Application WO/2010/050457
Kind Code:
A1
Abstract:
Provided is an antenna having a reflector using a dielectric lens, wherein a dielectric lens which is transparent to electromagnetic waves, a reflecting body which is at the focal point distance of the dielectric lens and reflects electromagnetic waves, and a holding mechanism which positions and holds the reflecting body at the focal point distance of the dielectric lens are provided. One surface of a dielectric lens formed in a shape obtained by cutting a sphere with two flat surfaces or curved surfaces is permitted to be the upper surface section and the other surface as the lower surface section, the holding mechanism has a structure which covers the upper surface section and the lower surface section, and radiowave absorbing bodies are arranged between the upper surface section and the holding mechanism covering the upper surface section and between the lower surface section and the holding mechanism covering the lower surface section. A port, which has a structure that penetrates a reflector from the reflecting surface of the reflecting body to the outside of a reflector and is capable of having an electromagnetic wave transmitting/receiving device attached thereto, is provided on the outer side of the penetrated reflector, and the port is positioned such that the long side of the rectangular opening section tilts 45° with respect to the ground. In the case where the electromagnetic wave transmitting/receiving device is attached to the port, electromagnetic waves can be transmitted and received through the port and the dielectric lens.
Inventors:
YONEMOTO Naruto (An Independent Administrative Institution 42-23, Jindaijihigashi-machi 7-chome, Chofu-sh, Tokyo 12, 〒1820012, JP)
米本成人 (〒12 東京都調布市深大寺東町７丁目４２番地２３ 独立行政法人電子航法研究所内 Tokyo, 〒1820012, JP)
KOUMURA, Akiko (An Independent Administrative Institution 42-23, Jindaijihigashi-machi 7-chome, Chofu-sh, Tokyo 12, 〒1820012, JP)
米本成人 (〒12 東京都調布市深大寺東町７丁目４２番地２３ 独立行政法人電子航法研究所内 Tokyo, 〒1820012, JP)
KOUMURA, Akiko (An Independent Administrative Institution 42-23, Jindaijihigashi-machi 7-chome, Chofu-sh, Tokyo 12, 〒1820012, JP)
Application Number:
JP2009/068376
Publication Date:
May 06, 2010
Filing Date:
October 27, 2009
Export Citation:
Assignee:
Electronic Navigation Research Institute, An Independent Administrative Institution (42-23, Jindaijihigashi-machi 7-chome Chofu-shi Tokyo, 12, 〒1820012, JP)
独立行政法人電子航法研究所 (〒12 東京都調布市深大寺東町７丁目４２番地２３ Tokyo, 〒1820012, JP)
Lenstar Co., Ltd. (10-23-701, Nakaikegami 2-chome Ota-ku Tokyo, 81, 〒1460081, JP)
株式会社レンスター (〒81 東京都大田区仲池上２－１０－２３－７０１ Tokyo, 〒1460081, JP)
YONEMOTO Naruto (An Independent Administrative Institution 42-23, Jindaijihigashi-machi 7-chome, Chofu-sh, Tokyo 12, 〒1820012, JP)
独立行政法人電子航法研究所 (〒12 東京都調布市深大寺東町７丁目４２番地２３ Tokyo, 〒1820012, JP)
Lenstar Co., Ltd. (10-23-701, Nakaikegami 2-chome Ota-ku Tokyo, 81, 〒1460081, JP)
株式会社レンスター (〒81 東京都大田区仲池上２－１０－２３－７０１ Tokyo, 〒1460081, JP)
YONEMOTO Naruto (An Independent Administrative Institution 42-23, Jindaijihigashi-machi 7-chome, Chofu-sh, Tokyo 12, 〒1820012, JP)
International Classes:
H01Q15/08; H01Q15/23
Attorney, Agent or Firm:
KUNUGI Taeko et al. (No.310 Nishishinjuku-Diamondpalace, 5-3 Nishishinjuku 3-chom, Shinjuku-ku Tokyo 23, 〒1600023, JP)
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