3D printing linear-to-circular polarization scanning antenna

Abstract

The application relates to the technical field of antennas, in particular to a 3D printing linear polarization conversion circular polarization scanning antenna, which comprises a phase gradient metasurface, a linear polarization conversion circular polarization metasurface lens and a feed horn antenna arranged in a coaxial line from top to bottom and not in contact with each other in sequence, the phase center of the feed horn antenna is located on the focal point of the linear polarization conversion circular polarization metasurface lens, and the phase gradient metasurface and the linear polarization conversion circular polarization metasurface lens rotate in opposite directions along the same axis. The application realizes two-dimensional beam control through the phase gradient metasurface and the linear polarization conversion circular polarization metasurface lens, so that the application has good beam scanning performance and high electromagnetic wave conversion efficiency, has the characteristics of high gain and low scanning loss, and is formed by adopting the 3D printing technology, so that the production cycle and cost are greatly shortened, precise control of the antenna radiation mode can be realized, and the application can be widely applied in the fields of communication, radar and satellite.

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