Ferrite-loaded dual-polarization low-profile strong-coupling ultra-wideband phased array antenna

Abstract

The invention discloses a ferrite-loaded dual-polarization low-profile strong-coupling ultra-broadband phased array antenna, which includes a four-sided split annular metamaterial wide-angle impedance matching layer, a strong-coupling planar overlapping dipole unit, and a double Y-shaped Feed balun, X-type frequency selective surface, combined ferrite mesh, reflective floor with integrated microstrip power divider; the upper surface antenna of the strong coupling planar overlapping dipole unit works in the vertical polarization state, and the lower surface The antenna works in a horizontally polarized state; the top and bottom of the double Y-feed balun are respectively welded to the strong-coupling planar overlapping dipole unit and the reflection floor of the integrated microstrip power divider; the combined ferrite mesh is located at Specific location between the X-type frequency selective surface and the reflective floor with integrated microstrip power splitter. The present invention achieves dual-polarization characteristics through careful design of dipole arrangement, and loads ferrite material to achieve low-profile physical characteristics and excellent radiation performance such as ultra-wideband and wide-angle scanning.

Description

technical field [0001] The invention belongs to the technical field of antenna engineering, and in particular relates to a ferrite-loaded dual-polarization low-profile strong-coupling ultra-wideband phased array antenna. Background technique [0002] The phased array antenna is composed of uniformly arranged radiating elements one by one. By controlling the feeding phase of the radiating elements, the shape of the radiation pattern can be changed to realize fast scanning of the beam. In recent years, whether it is a radar system, a radio astronomy system or a wireless communication system, phased array antennas have been involved in more and more fields, and more and more performance requirements have emerged accordingly. First of all, the profile height of the antenna is one of the most important considerations in terms of physical size. With the continuous increase of space utilization, the profile height of the antenna should be reduced to achieve the integration and conf...

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Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the ferrite-loaded dual-polarization low-profile strong-coupling ultra-broadband phased array antenna provided by the present invention solves the problem of narrow antenna bandwidth and limited scanning angle in the existing phased array antenna , the problem with higher profile

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