Method and device for testing correlation indexes of MIMO antenna

Abstract

The invention discloses a method for testing correlation indexes of a multiple input and multiple output (MIMO) antenna. The method comprises the following steps of: connecting each antenna and a tester through each matched load corresponding to each antenna included in the MIMO antenna; generating and sending target signals; receiving the target signals by each antenna and transmitting the received target signals to the tester by using the matched load corresponding to each antenna; acquiring the target signals sent by each antenna to obtain the test signals of each antenna and storing by the tester; and calculating the correlation indexes of the MIMO antenna according to the test signals of each antenna, which are stored in the tester. The invention also discloses a device for testing the correlation indexes of the MIMO antenna. The device comprises the matched load, a signal module, the tester and a calculation module. By adopting the method and the device, the correlation indexes of the MIMO antenna can be tested, so that the performance of the MIMO antenna can be reflected.

Description

technical field [0001] The invention relates to antenna index testing technology in wireless communication, in particular to a method and device for testing multiple input multiple output (MIMO, Multiple In&Multiple Out) antenna correlation index. Background technique [0002] With the application of MIMO technology in wireless communication technologies after 3G, in the evaluation of mobile terminals, the performance evaluation of the components that implement MIMO on the mobile terminal is added. Among them, the components that implement MIMO include: MIMO antennas, As well as the receiving circuit, baseband circuit and codec corresponding to each antenna included in the MIMO antenna, the performance evaluation method is specifically: simulate the base station and the spatial channel, so that the mobile terminal communicates with the simulated base station through the simulated spatial channel, And the throughput of the mobile terminal is measured, and the performance of t...

AI Technical Summary

Problems solved by technology

[0003] However, in the above test, the performance of the MIMO antenna in the components that implement MIMO, and the receiving circuit, baseband circuit, and codec corresponding to each antenna included in the MIMO antenna will affect the throughput, especially the codec will affect the throughput. Error correction coding is performed on the received information to improve the throughput. It can be seen that the throughput measured in the above method cannot strictly reflect the performance of the antenna and the matching degree between the receiving circuit, the baseband circuit and the antenna impedance, and cannot be obtained. Know the performance of the antenna, as well as the shortcomings of the design of the receiving circuit and baseband circuit

Images