Title:
PLANE ANTENNA DEVICE
Document Type and Number:
Japanese Patent JP3892154
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a plane antenna device more hardly being affected by multipath by sufficiently suppressing sensitivity to incident waves from the rear face side of a ground plane.
SOLUTION: A ground plane 5 is provided around the plane antenna 10 and also a choke is constructed around the rear surface side of the ground plane 5 by providing a ring-shaped conductor plate 6 and a conductor wall 7 on the rear surface side of the ground plane 5. Thus, the reflected waves from the lower parts than a horizontal plane is trapped to be hardly affected by the multipath.
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Inventors:
Asahi Kitahata
Kubo Yoshitaka
Kubo Yoshitaka
Application Number:
JP24127198A
Publication Date:
March 14, 2007
Filing Date:
August 27, 1998
Export Citation:
Assignee:
FURUNO ELECTRIC COMPANY,LIMITED
International Classes:
H01Q13/08; H01Q17/00; (IPC1-7): H01Q13/08; H01Q17/00
Domestic Patent References:
| JP8265037A | ||||
| JP4140906A | ||||
| JP62066412U | ||||
| JP11284429A | ||||
| JP63174409A | ||||
| JP548415U | ||||
| JP10335924A |
Foreign References:
| US5559521 | ||||
| GB2266192A | ||||
| GB2067842A |
Attorney, Agent or Firm:
Hisao Komori
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