A 5G large-scale array antenna

Abstract

The invention belongs to the technical field of mobile communication and discloses a 5G large-scale array antenna. The sandwich support plate part is located between a power distribution feed networkpart and a coupling calibration network part. The sandwich support plate part is a local hollow structure. The power distribution feed network part and the coupling calibration network part are connected by signals after welding. The radiating element is composed of several dual-polarized radiating oscillators which are fixedly connected with the power dividing and feeding network. A plurality ofdual-polarized radiators form a sub-array, and each sub-array leads to two dual-polarized channels, which are partially connected with the T / R module. The 5G large-scale array antenna provided by theinvention can still have excellent amplitude consistency and phase consistency under complex signal environment.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a large-scale dense array antenna related to a 5G mobile communication system. Background technique [0002] With the continuous development of my country's mobile communication technology, the research on the fifth-generation mobile communication system (5G) has entered a substantive stage, and major operators have started 5G coverage pilots in some cities in China. As one of the key core technologies of the 5G mobile communication system, large-scale array antenna technology, the current system has higher and higher requirements for the overall antenna. It can even be said that the improvement and improvement of large-scale array antenna technology has become a key factor in 5G wireless communication. A crucial support point for development. The key to the requirements for 5G large-scale array antennas is that they can support 3D beamforming and more powerful MIMO...

AI Technical Summary

Problems solved by technology

To achieve this goal, 5G large-scale array antennas have more radiating elements (number of radiating elements ≥ 64) and T / R component ports (number of ports ≥ 64) than conventional array antennas, and all T / R component ports and Excellent amplitude consistency and phase consistency between the calibration ports are prerequisites for the realization of 3D beamforming, while the 5G large-scale array antenna itself has a large number of radiating elements and more T / R component ports, the involved The environment of signal spurious coupling between radiating units is more complicated. At the same time, in the 5G era, the antenna and the main device mainly adopt a direct docking structure. When the antenna and the main device are integrated in one space, it is inevitable to be interfered by the large signal of the equipment power amplifier. These factors pose higher challenges to ensure antenna amplitude consistency and phase consistency

Images