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:
Aug. 13, 2013
Filed:
Mar. 30, 2011
Toshiaki Aizawa, Tokyo, JP;
Toshiaki Aizawa, Tokyo, JP;
Mitsumi Electric, Co., Ltd., Tokyo, JP;
Abstract
Provided is a patch antenna, an antenna unit and an antenna apparatus that can increase the directional gain of a patch antenna at a high angle of elevation and that can make the directional gain of a patch antenna at a given angle of elevation uniform at all azimuth angles. Patch antennahas patch antenna main bodyhaving antenna electrodeon its top surface, and a waveguidemounted on the top surface of patch antenna main body. Waveguidehas top platehaving a larger flat surface than patch antenna main bodyand having L-shaped sloton the flat surface, and spacerprovided between the top surface of patch antenna main bodyand top plateand separating antenna electrodeand top platea predetermined distance apart.