Holographic Tensor Metasurface for Simultaneous Wireless Powers and Information Transmissions Using Polarization Diversity

Abstract

A holographic tensor metasurface (HTM) is proposed from the energy perspective to achieve flexible regulations of polarization and energy distributions for simultaneous transmissions of power and information. A dual‐polarization receiving metasurface with high isolation is also proposed to enable simultaneous receptions of power and information. Based on the two metasurfaces, a novel system for simultaneous wireless information and power transmissions (SWIPT) is established, which can transmit microwave powers and information signals by flexibly regulating the electromagnetic waves in different polarizations. The proposed HTM can generate non‐diffraction Bessel beams of two polarizations to keep high‐power transfer efficiency in an environment with obstacles. A rectifier circuit is designed with a wide dynamic range to integrate with the receiving metasurface to capture the strong powers and weak signals simultaneously. The effect of different modulations on the rectification efficiency of microwave‐to‐DC and the performance of the SWIPT system are analyzed. The SWIPT system is verified by experiments to realize simultaneous transmissions of information and powers by only using the metasurfaces, which is beneficial to integrate the wireless sensor networks, communication modules, and artificial intelligence algorithms to build up smart cities.

Wideband directional-fed holographic metasurface with integrated monopole and parabolic reflector for far-/near-field beams manipulations

“…On the other hand, in the microwave band, one of the most important applications is the holographic metasurface [10,11]. Holographic metasurface can be applied to orbital angular momentum wireless communication, wireless power transfer and radar systems [12,13]. Taking radar systems as an example, holographic metasurface is designed with specific beamforming and scattering properties for more efficient target detection and localization.…”