Title:
ANTENNA DEVICE
Document Type and Number:
Japanese Patent JP2018125668
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an antenna device that can reduce deterioration of radio field intensity within a desired angle range in the antenna device having a cover.SOLUTION: The antenna device comprises: an antenna substrate 151 having a transmission antenna 151a that transmits a millimeter wave band radio wave in which width in a second direction D2 being almost orthogonal to a first direction D1 spreads out in a predetermined angle range toward a first direction D1 side; a reflection substrate 141 that is disposed being inclined relative to the first direction D1 in an orientation toward an opposite direction side when being more apart from the antenna substrate 151 in the second direction D2, among reflection substrates 141, 142 being disposed in the opposite direction side from the first direction D1 side, of the antenna substrate 151; and a cover 110 that covers the antenna substrate 151 and the reflection substrates 141, 142. The reflection substrates 141, 142 have thickness t1 in which the wave reflected by a first surface of one of the reflection substrates 141, 142 and the wave reflected by a second surface of the other of the reflection substrates 141, 142 offset each other.SELECTED DRAWING: Figure 6
Inventors:
KANEDA KUNIHIKO
YAMAGUCHI MANABU
SHINKAI SOTARO
SAKURAI HIROSHI
YAMAGUCHI MANABU
SHINKAI SOTARO
SAKURAI HIROSHI
Application Number:
JP2017015783A
Publication Date:
August 09, 2018
Filing Date:
January 31, 2017
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
H01Q15/18; H01Q1/12; H01Q1/42; H01Q15/14
Attorney, Agent or Firm:
Hiromori Arai
Eisaku Teratani
Shinichi Michisaka
Eisaku Teratani
Shinichi Michisaka