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:
Nov. 02, 2021
Filed:
Aug. 24, 2018
Southeast University, Nanjing, CN;
SOUTHEAST UNIVERSITY, Nanjing, CN;
Abstract
A direct radiation wireless digital communication system based on a digital programmable metamaterial, including a transmitting system and a receiving system, where information transmitted by the transmitting system is loaded to a programmable metamaterial, and is directly radiated into free space in a form of an ever-changing far-field pattern under the illumination of a feeding antenna; the receiving system collects electric field values received by receiving antennas located at different positions of a far-field region to obtain a far-field pattern, and recovers the transmitted original information according to a mapping relationship between the far-field pattern and a coding sequence. The system does not require a digital-to-analog conversion module and a frequency mixing module. The system also features an inherent secrete communication in the physical level which protects the transmitted information from being intercepted at a single point or any random points, and has the capabilities of self-adaption and self-perception.