High-power mode conversion super-lens antenna capable of realizing beam deflection

Abstract

The invention discloses a high-power mode conversion super-lens antenna capable of realizing the beam deflection, and aims to solve the problems that a high-power microwave antenna does not have a mode conversion function and is lengthy in axial structure. The antenna is composed of a horn antenna, a polarization conversion super lens, a positioning flange plate and a mode conversion super lens. The polarization conversion super lens is formed by arranging and combining a plurality of polarization conversion super lens units in a honeycomb shape, two arch-shaped columns and two supporting rodsare arranged in a through hole in the center of each unit, and two matching grooves are formed in the two ends of each unit respectively. The cross section of each polarization conversion super-lensunit is a regular hexagon and the polarization conversion super-lens units are closely arranged into a circle. The mode conversion super lens is formed by arranging and combining a plurality of mode conversion super lens units in a honeycomb shape, and two arch columns and two supporting rods are arranged in a through hole in the center of each unit. The cross sections of the mode conversion superlens units are regular hexagons and are closely arranged into a circle. The invention has the advantages of compact axial direction, compact axial structure and low loss, can realize mode conversion,and can change the emitting direction of the wave beam.

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 mode conversion metalens antenna capable of beam deflection. Background technique [0002] As an emerging subject, 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 radiation antenna determines whether the energy generated by the high-power microwave source can be effectively radiated or concentrated on the target. At present, the microwave modes generated by most high-power microwave sources (such as virtual cathode oscillators, relativistic return wave tubes, magnetic insulated wire oscillators, etc.) are rotational axisymmetric modes, such as the TM of the circular waveguide. 01 Die, TE 01 mode and coaxial waveguide TEM mode, etc. These modes have rotational symmetry around the waveguide axis due to the field dist...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome that most current high-power microwave antennas do not have the functions of mode conversion, polarization conversion and beam deflection, and the axial structure is redundant when used in conjunction with mode converters, circular polarizers and curved waveguides, For the shortcomings of large transmission loss, a new type of high-power mode-conversion metalens antenna that can realize beam deflection is provided, which has a compact structure, high gain, and high power capacity

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