Title:
アンテナ装置
Document Type and Number:
Japanese Patent JP7109016
Kind Code:
B2
Abstract:
To provide an antenna device and an antenna system which can easily be miniaturized with high sensitivity and can easily control a directional characteristic.SOLUTION: The antenna device includes an antenna 12 which supplies or receives power, and a magnetic conductor type reflective plate 14, adjacent to the antenna 12, which neither supplies nor receives power. The magnetic conductor type reflective plate 14 includes an LC auxiliary circuit 16 in which unit LC circuits 16a, each having an inductor L and a capacitor C connected in series, are connected in a two-dimensional shape, and an electric field component is set in a manner capable of being reflected in the same phase in a predetermined frequency band. By the arrangement of the antenna 12 close to the magnetic conductor type reflective plate 14, a radio wave is relatively strongly radiated or incident in a specific part of a direction that the antenna 12 faces. The LC auxiliary circuit 16, having the plurality of unit LC circuits 16a connected in a two dimensional shape, has another inductor L3 connected in a three dimensional shape.SELECTED DRAWING: Figure 1
Inventors:
Fujii Masafumi
Tatsuya Tokushima
Tatsuya Tokushima
Application Number:
JP2018028376A
Publication Date:
July 29, 2022
Filing Date:
February 21, 2018
Export Citation:
Assignee:
National University Corporation Toyama University
Tateyama Kagaku High Technologies Co., Ltd.
Tateyama Kagaku High Technologies Co., Ltd.
International Classes:
H01Q15/14; H01Q19/10
Domestic Patent References:
| JP2009033324A | ||||
| JP2004108816A | ||||
| JP2006010345A | ||||
| JP2012211778A | ||||
| JP2009296559A |
Foreign References:
| CN107317118A |
Attorney, Agent or Firm:
Hirosawa Isao
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