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. 30, 2022
Filed:
Jun. 28, 2018
Nec Corporation, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
An object is to advantageously control a phase of an electromagnetic wave with high efficiency at target operational frequency band. A phase control device () comprising a two-dimensional array of three-dimensional units () and configured to shift a phase of an electromagnetic wave passing through the three-dimensional units (). The two nearest three-dimensional units () having same phase shift coverage are configured such that the distance difference from phase center of the phase control device () to the units () is a wavelength of a reference frequency f, and the reference frequency fis higher than center frequency fof operational frequency band and not higher than the highest frequency fof the operational frequency band.