An Electrically Small Huygens Source Antenna with Reconfigurable Polarization

Abstract

The invention relates to a polarization reconfigurable electronically small Huygens source antenna and belongs to the technical field of antennas. The antenna is composed of a first dielectric substrate, a second dielectric substrate, a third dielectric substrate, an excitation source, solid copper columns, an electric dipole, a magnetic dipole, a coaxial cable and a 3D printing nylon bracket, wherein the second dielectric substrate is positioned below the first dielectric substrate, and is parallel to and mutually separated from the first dielectric substrate; the third dielectric substrate is positioned below the second dielectric substrate and is parallel to and mutually separated from the second dielectric substrate; the excitation source is attached to the lower surface of the third dielectric substrate; the electric dipole is attached to the upper surface of the second dielectric substrate; the magnetic dipole is attached to the upper surfaces of the first dielectric substrate and the third dielectric substrate and connected by virtue of four solid copper columns; the coaxial cable is arranged in a central position on the lower surface of the third dielectric substrate, and internal and external cores of the coaxial cable are connected with the excitation source. The polarization reconfigurable electronically small Huygens source antenna disclosed by the invention realizes reconfigurability of four polarized states under low profile and electronically small conditions, and has excellent radiation performance.

Description

technical field [0001] The invention belongs to the technical field of antennas, and relates to a polarization reconfigurable electrically small Huygens source antenna. Background technique [0002] Polarization reconfigurable technology has become one of the core technologies of next-generation wireless communication systems because it can realize frequency reuse, increase communication system capacity and reduce signal loss caused by multipath fading. At present, the methods to achieve polarization reconfigurability can be divided into the following three categories: 1. Designing reconfigurable radiators; 2. Designing reconfigurable feeding networks; 3. Adding parasitic structures. The above three methods can be used to design electrically large antennas with reconfigurable polarization, but they are not suitable for designing reconfigurable polarization of electrically small antennas. In addition, electrically small antennas have attracted much attention due to their adv...

AI Technical Summary

Problems solved by technology

The above three methods can be used to design electrically large antennas with reconfigurable polarization, but they are not suitable for designing reconfigurable polarization of electrically small antennas.

In addition, electrically small antennas have attracted much attention due to the advantages of small space occupation and easy integration. However, due to the limitation of electrically small size, electrically small antennas lead to poor directivity and low reconfigurability.

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