A dual-polarized base station antenna based on shared symmetrical array arms

Abstract

The invention discloses a dual-polarization base station antenna based on shared symmetrical array arms, the antenna comprises a dielectric plate, four microstrip feeder wires are printed on the top surface of the dielectric plate, the four microstrip feeder wires are respectively arranged along two diagonal lines of the dielectric plate, four shared array arms are printed on the bottom surface ofthe media plate, the four shared array sub-arms are respectively located at positions opposite to the four microstrip feed wires on the bottom surface of the dielectric plate, a microstrip feed wireand an opposite shared array sub-arm are connected with one end of a coaxial cable, and an antenna reflector plate in the horizontal direction is arranged directly below the dielectric plate. The antenna disclosed by the invention shares one polarized symmetrical array sub-arm with another orthogonally polarized symmetrical array sub-arm, realizes two radiation with different polarizations respectively, can greatly reduce antenna radiator size and antenna profile, and has the advantages of stable frequency bandwidth, gain and wave lobe width, etc.

Description

technical field [0001] The invention belongs to the field of wireless communication, in particular to a dual-polarized base station antenna based on shared symmetrical array sub-arms in the field. Background technique [0002] With the development of wireless communication technology, dual-polarized antennas have been widely used because they have two orthogonal polarization directions for radiation, which can greatly reduce the multipath effect in wireless communication and improve the quality of wireless communication. In the field of base station communication, with the development of base station communication technology, base station communication puts forward higher and higher requirements on the design and specifications of base station antennas. In the case of limited installation space and size, the size of the base station antenna is compressed to become smaller and smaller. In addition, considering the compatibility with mobile communication frequency bands such ...

AI Technical Summary

Problems solved by technology

In order to solve the coupling problem between antennas, new technologies such as electromagnetic bandgap (EBG) structures and metamaterials (Metamaterial) are widely used in antenna decoupling, but this will greatly increase the complexity of antenna design and manufacturing costs, and at the same time reduce the It has a huge impact on the radiation performance such as the radiation pattern of the base station antenna

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