28 GHz 5G OTA Test Using Optically-transparent Reflective Surface Fabricated by Electroforming

Cheonga Lee, Dong-Ha Jun, Myeonggin Hwang, Daehyeon Kim, Y. Yoon, Suho Chang, Donggeun An, Sang-Hyun Park, C. Chae, W. Hong
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Abstract

This paper validates the feasibility of deploying passive reflective surfaces to eliminate the radio shadowing regions in mmWave (28 GHz) fifth-generation (5G) wireless communications. The proposed optically-transparent reflective surface is fabricated by an electroforming process. To confirm the performance of the proposed reflective surface, the radiation pattern is measured in a far-field chamber. In addition, 5G real-time over-the-air (OTA) tests are implemented. Through single-tone and error vector magnitude (EVM) OTA measurements, the received power, EVM, and link throughputs are measured. As a result, radio shadowing regions are diminished in a non-line-of-sight (NLOS) path by approximately 15 dB through the deployment of the proposed optically transparent reflective surface.
电铸透明反射表面的28 GHz 5G OTA测试
本文验证了在毫米波(28ghz)第五代(5G)无线通信中部署无源反射面以消除无线电阴影区域的可行性。所提出的光学透明反射表面是通过电铸工艺制造的。为了确认所提出的反射表面的性能,在远场室中测量了辐射方向图。此外,还实施了5G实时空中OTA (real-time over- air)测试。通过单音和误差矢量幅度(EVM) OTA测量,可以测量接收功率、EVM和链路吞吐量。因此,通过部署所提出的光学透明反射表面,无线电阴影区域在非视距(NLOS)路径中减少了约15 dB。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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