Multi-probe compact range antenna test system and generation method

Abstract

The invention discloses a multi-probe compact range antenna test system and a generation method. The multi-probe compact range antenna test system comprises an antenna array panel, an antenna radiation unit, a beamforming network, a polarization control turntable, a tested antenna, a test instrument, a multi-axis turntable and a control module; the test system adopts a one-dimensional, two-dimensional and three-dimensional uniform and non-uniform symmetrical distribution arrays, optimizes the number and positions of antenna radiation units through a mapping function, and optimizes and weightsthe amplitude and phase of each unit of the array through a beamforming network, so that spherical waves radiated by each array element are superposed to form a plane wave; high-quality plane waves are generated at a short distance, and near-field measurement of various devices, especially base station antenna testing of 5G communication, is realized.

Description

technical field [0001] The invention belongs to the field of electromagnetic field and microwave technology, in particular to a multi-probe compact field antenna testing system. Background technique [0002] With the release and promotion of 5G mobile communication standards, large-scale active antenna array technology, as one of the key technologies of 5G mobile communication technology, has received extensive attention from the industry. However, in 5G wireless transmission, the use of Massive MIMO enables the integration of base station antennas and radio frequency transceiver modules to better play the functions of communication algorithms such as beamforming and MIMO. All of these require that RF testing can only be performed over the air (OTA). Over-the-Air (OTA) testing is playing an increasingly important role in the development of wireless devices. After discussions among various manufacturers, the far field, near field, and compact field can all be used as test s...

AI Technical Summary

Problems solved by technology

[0005] The current proposed plane wave generator requires more antenna radiation elements in order to generate quasi-plane waves with higher quality, which greatly increases the complexity of the power distribution network and beamforming network

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