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. 04, 2020
Filed:
Nov. 12, 2015
Nagasaki University, Nagasaki, JP;
Git Japan Incorporated, Shiga, JP;
Takafumi Fujimoto, Nagasaki, JP;
Nagasaki University, Nagasaki, JP;
Abstract
A planar antenna includes a patch conductor formed on a front surface of a dielectric substrateso to be obliquely arranged in relation to an orthogonal axis of the dielectric substrate, the patch conductor having an elliptic shape; a microstrip linefor feeding power to a bottom part of the patch conductor; and a ground conductor plateformed on a back surface of the dielectric substrate at a position thereof that is not overlapped with the patch conductor. By forming the patch conductor to be inclined only by θ, circular polarization characteristics in which axial ratio is 3 dB or less are given and the wideband such that the frequency bandwidth in which VSWR characteristics are 2 or less is 2 through 5 GHz and the wideband in UWB High band can be attained. The antenna characteristics in which any radiation directivity on the zenith direction does not depend on the frequency are obtained.