articleIEEE AccessJan 1, 2020GOLD OA

Reconfigurable Intelligent Surface-Based Wireless Communications: Antenna Design, Prototyping, and Experimental Results

LDLinglong DaiBWBichai WangMWMin WangXYXue YangJTJingbo Tan

Center for Information Technology · Tsinghua University · +9 more institutions

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Abstract

One of the key enablers of future wireless communications is constituted by massive multiple-input multiple-output (MIMO) systems, which can improve the spectral efficiency by orders of magnitude. In existing massive MIMO systems, however, conventional phased arrays are used for beamforming. This method results in excessive power consumption and high hardware costs. Recently, reconfigurable intelligent surface (RIS) has been considered as one of the revolutionary technologies to enable energy-efficient and smart wireless communications, which is a two-dimensional structure with a large number of passive elements. In this paper, we develop a new type of high-gain yet low-cost RIS that bears 256 elements. The…

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Topics & keywords

Topics
Keywords
  • Computer science
  • Wireless
  • Embedded system
  • Reconfigurable antenna
  • Rapid prototyping
  • Antenna (radio)
  • Computer architecture
  • Telecommunications
UN Sustainable Development Goals
  • Affordable and clean energy
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