The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 02, 2018
Filed:
Apr. 22, 2016
Mitsubishi Electric Corporation, Chiyoda-ku, JP;
Tomohiro Mizuno, Chiyoda-ku, JP;
Noboru Kawaguchi, Chiyoda-ku, JP;
Takashi Takanezawa, Chiyoda-ku, JP;
Hidenobu Nishihara, Chiyoda-ku, JP;
Hiroto Ado, Chiyoda-ku, JP;
Mitsubishi Electric Corporation, Chiyoda-ku, JP;
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.