Title:
ANTENNA DEVICE
Document Type and Number:
Japanese Patent JP2018164149
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an antenna device which enables the enhancement of a degree of design freedom of a substrate including EBG and an antenna.SOLUTION: An antenna device comprises: a dielectric substrate; at least first and second radiators disposed in a first wiring layer included in the dielectric substrate; a first reflector disposed in a range of a second wiring layer included in the dielectric substrate, provided that the range includes a range to which the first radiator is projected in a layer thickness direction of the dielectric substrate; a second reflector disposed in a range of the second wiring layer, including a range to which the second radiator is projected in the layer thickness direction; and a first electromagnetic bandgap disposed between the first and second radiators. The first electromagnetic bandgap includes: a first patch disposed in the first wiring layer; a first grounding electrode disposed in a third wiring layer at a position different from the second wiring layer in the layer thickness direction of the dielectric substrate; and a first via-hole which connects the first patch with the first grounding electrode, and extending in the layer thickness direction.SELECTED DRAWING: Figure 4
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Inventors:
MURATA TOMOHIRO
SATO JUNJI
SATO JUNJI
Application Number:
JP2017059191A
Publication Date:
October 18, 2018
Filing Date:
March 24, 2017
Export Citation:
Assignee:
PANASONIC CORP
International Classes:
H01Q15/14; H01Q1/38; H01Q1/52; H01Q21/28
Attorney, Agent or Firm:
Koichi Washida