Zhang, Q W; Loh, T H; Zhang, W X; Yang, Y; Huang, Z P; Qin, F (2022) A Low-Cost and Efficient Single Probe Based MIMO OTA Measurement Method. IEEE Transactions on Instrumentation and Measurement, 71. 6501215

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Abstract

As the multiple-input-multiple-output (MIMO) technologies being increasingly emerged in the arena of modern wireless systems, their cost-effective and efficient over-the-air (OTA) performance verification under arbitrary fading channels, especially, for high-volume beam-reconfigurable product verifications, play a crucial role towards their technology adoption. The two-dimensional (2D) multi-probe anechoic chamber (MPAC) MIMO OTA measurement method has been well developed, but requires both precise infrastructure and heavy calibration. Moreover, the extension to 3D channel model appears impractical for MPAC method with its significantly increased probe numbers in three-dimensional (3D) scenario. To address these challenges, we propose a novel single probe anechoic chamber (SPAC) measurement method that transforms the spatial synthesization of MPAC into time synthesization whereby the only source of measurement error can be restrained in the time synchronization. The wireless community can be widely benefited with this proposed low-cost and efficient methodology, especially in the research and product prototyping stage. In this paper, a proof of concept measurement system has been designed and implemented, which validates the efficiency of proposed solution.

Item Type:	Article
Subjects:	Electromagnetics > Wireless Communications
Divisions:	Electromagnetic & Electrochemical Technologies
Identification number/DOI:	10.1109/TIM.2022.3147908
Last Modified:	20 Feb 2023 11:00
URI:	https://eprintspublications.npl.co.uk/id/eprint/9576