Title:
Antenna system
Document Type and Number:
Japanese Patent JP6157788
Kind Code:
B2
Abstract:
An antenna device includes a main-reflector including a main-reflector hole, an additional main-reflector, a sub-reflector, and an additional sub-reflector. The main-reflector surrounds an outer edge of the additional main-reflector, and has a reflective surface on the same side as the additional main-reflector. The sub-reflector faces the main-reflector hole on the reflective surface side of the additional main-reflector, and has a reflective surface facing the reflective surface of the additional main-reflector. The additional sub-reflector surrounds an outer edge of the sub-reflector, and has a reflective surface on the same side as the sub-reflector. The main-reflector reflects an incident electromagnetic wave toward the additional sub-reflector, the additional sub-reflector reflects toward the additional main-reflector the electromagnetic wave reflected by the main-reflector, the additional main-reflector reflects toward the sub-reflector the electromagnetic wave reflected by the additional sub-reflector, and the sub-reflector reflects toward the reflector hole the electromagnetic wave reflected by the additional main-reflector.
Inventors:
Tomohiro Mizuno
Noboru Kawaguchi
Takanezawa Takane
Hidenobu Nishihara
Hiroto Ado
Noboru Kawaguchi
Takanezawa Takane
Hidenobu Nishihara
Hiroto Ado
Application Number:
JP2017514202A
Publication Date:
July 05, 2017
Filing Date:
April 22, 2016
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H01Q19/18; H01Q19/13
Domestic Patent References:
| JP52104847A | ||||
| JP51118354A | ||||
| JP63283209A | ||||
| JP2001156539A | ||||
| JP6257302A | ||||
| JP4119115U |
Foreign References:
| US20110215190 |
Attorney, Agent or Firm:
Kimura Mitsuru
Koji Yashima
Mie Hideki
Koji Yashima
Mie Hideki