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An RTS-Based Near-Field MIMO Measurement Solution—A Step Toward 5G.
- Source :
-
IEEE Transactions on Microwave Theory & Techniques . Jul2019, Vol. 67 Issue 7, p2884-2893. 10p. - Publication Year :
- 2019
-
Abstract
- Multiple-input and multiple-output (MIMO) over-the-air (OTA) measurements have helped 4G wireless systems significantly for the communication throughput and to enhance the network stability. However, there remains a potential challenge, which may substantially obstruct the OTA test methodologies being adopted in 5G evaluations. According to the MIMO OTA measurement standards, throughput tests should be conducted in the far-field. As a result, a general system covering all the 4G frequency bands should be larger than 3.6 m, and even tens of meters for 5G. In addition to the cost of the chamber hardware, a sizeable footprint of building space is also required for the test system. Consequently, conducting far-field tests directly incurs excessively high costs in 5G. A compact system with dimensions of 1.9 m for 5G MIMO OTA is proposed in this paper, where a near-field to far-field transformation method is adopted into the current standard MIMO OTA test approach (the radiated two-stage approach), and the throughput in the near field is measured. Compared to existing test systems, the compact solution can achieve a cost reduction by at least an order of magnitude and obtain comparable results as a full-scale certification system. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00189480
- Volume :
- 67
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Microwave Theory & Techniques
- Publication Type :
- Academic Journal
- Accession number :
- 137295141
- Full Text :
- https://doi.org/10.1109/TMTT.2019.2901687