A bidirectional radiation co-rotation dual circularly polarized antenna based on 3D printing technology

Abstract

The invention discloses a bidirectional radiation co-rotation dual circularly polarized antenna based on 3D printing technology, comprising a circular waveguide with open circuits at both ends, and a first dielectric rod and a second dielectric rod respectively located on both sides of the circular waveguide. The circular waveguide is provided with a first differential port and a second differential port that are orthogonally arranged, and a pair of triangular metal layer gaps are respectively opened at the openings at both ends of the circular waveguide, and each pair of gaps is respectively ± ± with the x-axis. The included angle is 45 degrees, and a pair of notches located at the same end are symmetrical about the central axis of the antenna. The antenna is integrally formed by 3D printing technology, which is light in weight and easy to process. The waveguide wall is realized by electroplating a thin metal layer. The triangular notch on the waveguide wall has the function of a polarizer, through which circularly polarized radiation of bidirectional co-rotation can be realized. By switching the differential port of the feed, the dual circular polarization function can be realized, and the rotation direction of the circular polarization can be freely switched.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a bidirectional radiation co-rotation dual circularly polarized antenna based on 3D printing technology. Background technique [0002] 3D printing technology is an emerging processing technology that manufactures three-dimensional solid models by superimposing materials layer by layer. Different from the traditional three-dimensional model manufacturing process, such as: CNC, injection molding, etc., 3D printing adopts the method of adding materials, without the need for original embryos and molds, and can directly realize the processing of various complex structures based on computer graphics data. Its advantages are: it can simplify the manufacturing procedure, shorten the processing cycle, efficiently form complex structures, and have high material utilization rate, etc. At present, 3D printing technology has been widely used in various fields, including the field of antenna...

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problems existing in the prior art, such as narrow axial ratio bandwidth, low gain, asymmetrical radiation characteristics in two directions, complex antenna structure, difficult processing, single polarization mode, and difficulty in realizing free switching of rotation direction, etc., the present invention provides A bidirectional radiation co-rotation dual circularly polarized antenna based on 3D printing technology

Images