Metasurface flat lens-type beamforming antenna for radars and communication, capable of varying electromagnetic wave beam pointing angle by selecting one from electromagnetic wave sources, and requiring no chipset active phase shifters

Abstract

The present disclosure suggests: a primary device that changes a steering angle of a beam by repositioning radiation sources made of purely passive components and passing the beam through a metamaterial flat lens; components or the entirety of a device in which patches are arranged according to positions of radiation sources without using a power divider, and when a patch is selected through an RF switch, an electromagnetic wave is incident to a metamaterial lens, and by which a phase compensation value is implemented at each point of the metamaterial lens using a combination structure of metal circular patches within a metal ring, ensuring robust and sensitive resonant characteristics that adapt flexibly to changes in incidence direction, frequency signals, or process errors, thereby preventing any negative outcomes; and an operation method using a switch, so as to provide a solution that addresses problems of conventional beam steering antennas.

Dependencies are inferred from the claim text.