Missile-borne miniaturized multi-frequency-band reconfigurable conformal antenna

Abstract

The invention discloses a missile-borne miniaturized multi-frequency-band reconfigurable conformal antenna. The antenna comprises a radiation antenna layer, an antenna frequency band switching controlunit and frequency selection surface layers. The radiation antenna layer comprises a dipole antenna; the antenna frequency band switching control unit is connected with the dipole antenna on the radiation antenna layer, and is used for switching the working frequency bands of the dipole antenna to realize the reconfigurable frequency of the dipole antenna, wherein the number of the frequency selection surface layers is matched with the number of the working frequency bands of the dipole antenna; the number of the frequency selection surface layers is determined according to the number of theworking frequency bands of the dipole antenna; each frequency selection surface layer corresponds to the dipole antenna with a working frequency; and each frequency selection surface layer comprises asubstrate and a gap array arranged on the substrate. The frequency selection surface layer can resonate with the working frequency of the dipole antenna by designing the width of the substrate and the shape and the size of the gap array, so that a directional radiation function of an antenna system is realized.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a missile-borne miniaturized multi-band reconfigurable conformal antenna. Background technique [0002] The traditional missile-borne antenna system generally works in a single mode, that is, it is only responsible for completing the working mode under the requirements of a single frequency, a single function, and a specific pattern and polarization characteristics. In its structural design, many antennas are densely distributed on the surface of the carrier platform. This single-mode approximate discretization layout will cause serious problems of mutual interference between the antenna radiation structure and the installation structure, destroying the aerodynamic performance of the missile body, increasing the aerodynamic resistance, increasing the weight of the missile-borne equipment, and increasing the RCS value of the missile itself , It is not conducive to the improvement...

AI Technical Summary

Problems solved by technology

[0005] The existing FSS formed by periodic patch or slot display has poor performance, and cannot meet the signal reflection of different working frequency bands of the antenna system when the antenna system works in multiple frequency bands, resulting in the inability to realize the multi-band antenna pattern directional emission requirements.

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