Beam switching antenna based on frequency selective surface

Abstract

The present application provides a beam switching antenna based on frequency selective surface, comprising an antenna unit and several frequency selective surfaces arrays. The frequency selective surfaces arrays are sequentially connected around the antenna unit as a central axis, forming a columnar structure with a polygonal cross-section. Each frequency selective surfaces array is equipped with at least two active control components configured to optimize the radiation performance of electromagnetic waves emitted by the antenna unit through the corresponding frequency selective surfaces arrays. By adjusting these active control components, the radiation direction of the centrally positioned antenna unit can be dynamically altered, enabling omnidirectional beam scanning for the beam-switching antenna. This design ensures excellent transmission performance and maintains high gain across the operational frequency band of the antenna.

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