A Decomposition Method for MIMO OTA Performance Evaluation


Diagnosis and troubleshooting are critical to efficiently detecting the imperfections and improving the radio frequency designs for wireless systems in research and development stage. For achieving these, this paper proposes a decomposition method for the measurement of multi-input multi-output (MIMO) devices' over-the-air (OTA) performance. By using the proposed method, the antenna active envelope correlation coefficient, the radiated sensitivity of each receiver, the total isotropic sensitivity, the self-interference, and the desensitization can all be achieved separately, and in OTA working mode. In consideration of the MIMO system's complex array antennas and radio frequency receivers, the parameters obtained by this decomposition method are significant for discovering the imperfections, for debugging, and for improving the design of the devices. It is a valuable tool to raise the debugging efficiency of MIMO systems.


Electrical and Computer Engineering


National Natural Science Foundation (China)
Chinese Ministry of Education. Chinese Mobile Research Foundation


This work was supported by the Chinese Ministry of Education-China Mobile Research Foundation under Grant MCM 20150101 and National Natural Science Foundation of China under Grant 61671203.

Keywords and Phrases

Antenna arrays; Diagnosis; MIMO systems; Radio waves; Receiving antennas; Antenna measurement; Decomposition methods; MIMO communication; Multi input multi output; Over the airs; Performance evaluations; Radio frequencies; Sensitivity; Program debugging; Multi-input multi-output (MIMO); Over-the-air (OTA)

International Standard Serial Number (ISSN)

0018-9545; 1939-9359

Document Type

Article - Journal

Document Version


File Type





© 2018 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Sep 2018