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:
Feb. 11, 2020
Filed:
Jul. 27, 2018
Nidec Corporation, Minami-ku, Kyoto, JP;
Wgr Co., Ltd., Shimogyo-ku, Kyoto, Kyoto, JP;
Hideki Kirino, Kyoto, JP;
Hiroyuki Kamo, Kyoto, JP;
NIDEC CORPORATION, Kyoto, JP;
WGR CO., LTD., 8E10 ADV. SCI., TECH. & MGMT., Kyoto, JP;
Abstract
A waveguide device for use in propagating an electromagnetic wave of a band having a shortest wavelength λm in free space includes: a first electrically conductive member having an electrically conductive surface and a first throughhole; a second electrically conductive member including a plurality of electrically conductive rods each having a leading end opposing the electrically conductive surface, the second electrically conductive member having a second throughhole which overlaps the first throughhole as viewed along an axial direction of the first throughhole; and an electrically-conductive waveguiding wall at least partially surrounding a space between the first throughhole and the second throughhole and being surrounded by the plurality of electrically conductive rods, the waveguiding wall allowing the electromagnetic wave to propagate between the first throughhole and the second throughhole. The height of the waveguiding wall is less than λm/2. The distance between an electrically conductive rod among the plurality of electrically conductive rods that is adjacent to the waveguiding wall and the outer periphery of the waveguiding wall is less than λm/2.