High Power Microwave Polarization Conversion Metalens Antenna

Abstract

The invention discloses a high-power microwave polarization conversion superlens antenna, which aims to solve the problem that the existing horn antenna does not have the polarization conversion function and the axial direction is not compact enough when matched with a waveguide circular polarizer. The invention consists of a horn antenna and a polarization conversion superlens. The horn antenna is composed of a first flange, a conical horn and a second flange. The polarization conversion superlens is composed of a plurality of polarization conversion superlens units arranged in a honeycomb shape. A through hole is drilled in the center of the polarization conversion superlens unit, and there are two arcuate columns inside the through hole, which respectively pass through the support rod and the through hole. The inner walls are connected, and two matching slots are respectively opened at both ends of the polarization conversion superlens unit. The cross-section of the polarization conversion metalens is a regular hexagon, which is closely arranged in a circle. The thickness of the invention is about one free space wavelength, the axial direction is more compact, and the power capacity is higher, the linear polarization mode can be directly converted into the circular polarization mode, and the circular polarization microwave mode can be radiated into the free space.

Description

technical field [0001] The invention relates to a radiation antenna in the technical field of high-power microwaves, in particular to a high-power microwave polarization conversion superlens antenna that can realize circularly polarized radiation. Background technique [0002] As a new discipline, high-power microwave has broad application prospects in both military and civilian fields. As an important part of the high-power microwave system, the high-power radiating antenna determines whether the energy generated by the high-power microwave source can be effectively radiated or concentrated on the target. At present, most high-power microwave radiating antennas are linearly polarized antennas, and it is difficult for electronic equipment received by circular polarization to play a role, and part of the energy will be lost due to polarization mismatch. Therefore, in order to improve the effect of high-power microwave antennas and expand the application range of high-power m...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a new type of high-power microwave polarization conversion metalens antenna, which has a compact structure and high gain, and is used to solve the problem that the existing horn antenna does not have the polarization conversion function, and it is not compatible with the circular pole of the waveguide. When the carburetor is matched, the axial direction is not compact enough, etc.

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