JOURNAL OF CHINA UNIVERSITIES OF POSTS AND TELECOM ›› 2017, Vol. 24 ›› Issue (1): 60-66.doi: 10.1016/S1005-8885(17)60188-2

• Wireless • Previous Articles     Next Articles

Novel physical probe configurations in a multi-probe based 3D MIMO OTA setup

Wang Weimin, Li Muyuan, Liu Yuan’an, Wu Yongle, Li Shulan   

  1. 1. Beijing Key Laboratory of Work Safety Intelligent Monitoring, Beijing University of Posts and Telecommunications 
    2. School of Electronic Engineering, Beijing University of Posts and Telecommunications
  • Received:2016-09-09 Revised:2017-01-18 Online:2017-02-28 Published:2017-02-28
  • Contact: Wei-Min WANG
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (61327806), and the Youth Foundation of Beijing University of Posts and Telecommunications (2016RC14). The Corresponding Patent (CN 106209284 A) is pending.

Abstract: In this paper, channel spatial characteristics which mainly depend on the spatial correlation are selected as the significant factors in over-the-air (OTA) testing for multiple input multiple output (MIMO) devices. The multi-probe anechoic chamber method, a promising candidate of the MIMO OTA testing methods, can reproduce the multipath environments in a controllable manner. A novel physical configuration based on the variation of relative positions of probes in a MIMO OTA setup is put forward to obtain better spatial characteristics. Two physical configurations are presented to make a comparison with the typical configuration in this paper. The simulation results show that by making a proper probe configuration, good channel simulation accuracy can be achieved. Meanwhile, in order to get better performance of emulating channel spatial characteristics, probes in the first and the last probe rings should be placed symmetrically in three dimensional (3D) physical probe configuration.

Key words: MIMO OTA, channel spatial characteristics, multi-probe anechoic chamber, physical configuration

CLC Number: