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. 23, 2021
Filed:
Jun. 13, 2016
Nec Corporation, Tokyo, JP;
Takahide Yoshida, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
An object of the present invention is to provide a method for designing a gradient index lens enabling to easily and accurately drive an antenna. According to the present invention, a virtual domain a boundary of which includes a curved focal plane in a uniform-refractive-index type lens with a uniform refractive index, and a physical domain a boundary of which includes a planar focal plane in a gradient index lens with a non-uniform refractive index and that is a quasiconformal map of the virtual domain are set, the quasiconformal map of a virtual medium parameter that is a medium parameter including at least one of a dielectric constant and magnetic permeability characterizing the virtual domain is calculated as a physical medium parameter in the physical domain, and the gradient index lens based on the physical medium parameter is designed by spatially arranging a medium parameter adjustment element set in advance.