Recent advances in bianisotropic boundary conditions: theory, capabilities, realizations, and applications
In recent years, new functionality and unprecedented wavefront control has been enabled
by the introduction of bianisotropic metasurfaces. A bianisotropic metasurface is …
by the introduction of bianisotropic metasurfaces. A bianisotropic metasurface is …
Extreme beam-forming with impedance metasurfaces featuring embedded sources and auxiliary surface wave optimization
We present the end-to-end design of compact passive and lossless metasurface antennas
with integrated feeds. The complete low-profile system consists of a single-layered reactive …
with integrated feeds. The complete low-profile system consists of a single-layered reactive …
The design of dual band stacked metasurfaces using integral equations
An integral equation-based approach for the design of dual-band stacked metasurfaces that
are invariant in 1-D is presented. The stacked metasurface will generate collimated beams …
are invariant in 1-D is presented. The stacked metasurface will generate collimated beams …
Fast and accurate optimization of metasurfaces with gradient descent and the woodbury matrix identity
A fast metasurface optimization strategy for finite-size metasurfaces modeled using integral
equations is presented. The metasurfaces considered are constructed from finite, patterned …
equations is presented. The metasurfaces considered are constructed from finite, patterned …
[PDF][PDF] Design of passive and lossless single layer metasurfaces for far field beamforming
A general synthesis technique for beamforming metasurfaces is presented which utilizes
accurate modeling techniques and rapid optimization methods. The metasurfaces …
accurate modeling techniques and rapid optimization methods. The metasurfaces …
Numerically Optimized Fourier Transform-Based Beamforming Accelerated by Neural Networks
Conventional beamforming methods for reconfigurable reflector antennas assume full
control over the amplitude and phase of the reflected field. Here, we develop a novel …
control over the amplitude and phase of the reflected field. Here, we develop a novel …
Accurate modeling and rapid synthesis methods for beamforming metasurfaces
A general synthesis technique for beamforming metasurfaces is presented which utilizes
accurate modeling techniques and rapid optimization methods. The metasurfaces …
accurate modeling techniques and rapid optimization methods. The metasurfaces …
Passive metasurface antenna with perfect aperture efficiency
A passive metasurface antenna with perfect aperture efficiency is presented. The
metasurface consists of an inhomogeneous impedance sheet placed above a conductor …
metasurface consists of an inhomogeneous impedance sheet placed above a conductor …
Polarization Converter Metasurface Using Machine Learning Methods for Bandwidth Enhancement
D Chatzichristodoulou, P Vryonides… - … on Modern Circuits …, 2024 - ieeexplore.ieee.org
This manuscript presents the design of a polarization converter metasurface (MTS) where
Machine Learning (ML) and Deep Learning (DL) methods were used, to enhance its …
Machine Learning (ML) and Deep Learning (DL) methods were used, to enhance its …
Accelerated optimization of metasurfaces with the Woodbury matrix identity
Direct optimization of the impedances of a metasurface is difficult due to the large number of
subwavelength elements comprising a metasurface. Gradient-based optimization …
subwavelength elements comprising a metasurface. Gradient-based optimization …