5G multi-frequency broadband dual-polarization base station antenna loaded with antenna decoupling surface

Abstract

The invention discloses a 5G multi-frequency broadband dual-polarization base station antenna loaded with an antenna decoupling surface. The antenna comprises a metal reflecting plate, a plurality of metal baffles, a plurality of high-frequency units, a feed balun, a low-frequency unit and an antenna decoupling surface, wherein the feed balun is arranged at the middle position of the metal reflecting plate; the low-frequency unit is arranged on the feed balun; the plurality of metal baffles are arranged on the metal reflecting plate at equal intervals around the low-frequency unit; the plurality of high-frequency units are arranged on the metal reflecting plate at equal intervals around the low-frequency unit; and the antenna decoupling surface is disposed above the low frequency unit. According to the invention, the decoupling surface is loaded above common-caliber base station antennas to realize mutual coupling suppression between the common-caliber base station antennas, so that the isolation between different frequencies of the antennas is improved, and the radiation pattern of each frequency band antenna is stabilized.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a 5G multi-frequency broadband dual-polarization base station antenna loaded with an antenna decoupling surface. Background technique [0002] With the advent of the 5G era, the Ministry of Industry and Information Technology of my country has allocated new and higher frequency bands for 5G development and use for operators, and the 5G frequency bands allocated by each operator are different. Among them, China Mobile's 5G frequency band is 2.515-2.675GHz and 4.8-4.9GHz; China Telecom's 5G frequency band is 3.4-3.5GHz; China Unicom's 5G frequency band is 3.5-3.6GHz. While developing 5G, the previous 2G / 3G / 4G base stations cannot all be cancelled. Within a certain period of time, 2G / 3G / 4G / 5G will coexist, which leads to the shortage of base station site resources. How to use one antenna to cover multiple frequency bands becomes the key to saving resources of the base station site...

AI Technical Summary

Problems solved by technology

However, due to the installation of multiple antennas with different frequency bands in a small space, the mutual coupling problem between the antennas is very serious, which in turn leads to the degradation of the radiation performance of the antennas. Therefore, how to suppress the mutual coupling problem between the antennas becomes a common-aperture base station. Antenna research key

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