Retrieval of Polarizability Matrix for Metamaterials

Intelligent Time-Varying Metasurface Transceiver for Index Modulation in 6G Wireless Networks

“…E pq (θ, φ)Γ t pq e j(kc((p−1)dx sin θ cos φ+(q−1)dy sin θ sin φ)) , (8) where θ and φ denote angles in spherical coordinates, E pq (θ, φ) is the pattern response, and k c = 2π λ c is the wavenumber. We scan the reflected beam by coding the RI-MTS with a progressively varying phase shift.…”

“…Lately, TMAA based on metasurfaces (MTSs) have drawn significant interest in the engineering community [5] because of their ability to control and manipulate electromagnetic (EM) waves in a sub-wavelength thickness through modified boundary conditions [6,7]. The MTS, viewed as a two-dimensional (2-D) equivalent of metamaterials (MTMs), is a synthetic electromagnetic (EM) surface composed of sub-wavelength patches, or meta-atoms, printed on one or more dielectric substrate layers [8]. Through careful engineering of each meta-atom, MTSs can transform an incident EM wave into an arbitrarily tailored transmitted or reflected wavefront [9][10][11][12].…”