Journal
IEEE WIRELESS COMMUNICATIONS
Volume 28, Issue 2, Pages 106-113Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/MWC.001.2000267
Keywords
Metasurfaces; Antenna arrays; Wireless communication; Metamaterials; Transceivers; Receiving antennas; Hardware
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Metasurfaces are a promising technology for using massive arrays of antennas in a cost and power efficient manner. While currently mainly used as passive reflecting devices, they also have the potential to act as active reconfigurable antennas with advanced signal processing capabilities for next generation wireless transceivers.
Next generation wireless base stations and access points will transmit and receive using an extremely massive numbers of antennas. A promising technology for realizing such massive arrays in a dynamically controllable and scalable manner with reduced cost and power consumption utilizes surfaces of radiating metamaterial elements, known as metasurfaces. To date, metasurfaces are mainly considered in the context of wireless communications as passive reflecting devices, aiding conventional transceivers in shaping the propagation environment. This article presents an alternative application of metasurfaces for wireless communications as active reconfigurable antennas with advanced analog signal processing capabilities for next generation transceivers. We review the main characteristics of metasurfaces used for radiation and reception, and analyze their main advantages as well as their capability to reliably communicate in wireless networks. As current studies unveil only a portion of the potential of metasurfaces, we detail a list of exciting research and implementation challenges which arise from the application of metasurface antennas for wireless transceivers.
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