Wideband dual polarized base station antenna

Abstract

The invention discloses a wideband dual polarized base station antenna, and belongs to the technical field of mobile communication base station antennas. The wideband dual polarized base station antenna comprises a radiation unit and a reflecting plate, and is characterized in that the radiation unit is composed of a dipole antenna provided with L-shaped slots, the reflecting plate is arranged below the dipole radiation unit, and the reflecting plate and the radiation unit feed in a coaxial connection mode; the radiation structure of the dipole antenna is formed by placing dipoles inclining by 45 degrees in a crossed manner, openings of the L-shaped slots of the dipole antenna are oppositely arranged, and crossed opposite corners of the dipole antenna are connected through two connecting pieces. By adopting the structure disclosed by the invention, the dipole radiation unit provided with the L-shaped slots increases a current path and realizes miniaturization of the antenna, the radiation structure is formed by placing the two dipoles inclining by 45 degrees in a crossed manner, thereby forming large coupling, and realizing wideband characteristics. The wideband dual polarized base station antenna is simple in design, convenient to process and assemble, good in production conformity, convenient for batch production and high in production efficiency, and has the advantages of wide band, dual polarization and the like.

Description

technical field [0001] The invention relates to a broadband dual-polarization base station antenna unit, which belongs to the technical field of mobile communication base station antennas. Background technique [0002] With the rapid development of mobile communication systems, base station antennas are also developing in various directions such as broadband / multi-frequency, dual polarization, miniaturization, low cost, concealment and intelligence, and the requirements for base station antennas are also increasing. The higher, especially the gain, bandwidth characteristics, half power angle fluctuation characteristics with frequency, cross polarization characteristics and so on. [0003] In the mobile communication system, the base station antenna plays an important role, and its performance directly affects the communication quality of the entire communication system. However, the distribution of base station antennas in cities is becoming more and more dense, and the inte...

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Problems solved by technology

[0003] In the mobile communication system, the base station antenna plays an important role, and its performance directly affects the communication quality of the entire communication system. However, the distribution of base station antennas in cities is becoming more and more dense, and the interference between base stations is also increasing. Seriously, there are many problems such as insufficient working frequency band, complicated processing and assembly, high cost, poor production consistency, etc.

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