Phase-Gradient Huygens Metasurface Coatings for Dynamic Beamforming in Linear Antennas
arXiv:2303.10402 · doi:10.1109/TAP.2023.3297193
Abstract
The beamforming capabilities of conformal cylindrical Huygens metasurface (HMS) coatings for linear antennas are assessed. It is shown that by engineering the phase-gradient profile of the HMS, the original omnidirectional radiation pattern of the linear antenna can be shaped to form multi- or single-beam configurations. A closed-form expression for the phase-insertion profile of the cylindrical coating required to achieve the desired radiation pattern profile is derived, and several full-wave numerical examples supporting our claims are reported. A configuration exploiting a realistic HMS layout is also discussed and it is shown that, by making the metasurface reconfigurable through the use of tunable lumped elements, the radiated beams can be dynamically steered in space. This new design methodology could find application in smart electromagnetic environment scenarios for dynamically rerouting the signal towards multiple users.
This work has been submitted to the IEEE for possible publication
References in corpus (10)
- Achieving transparency with plasmonic coatings
- Theory, design, and experimental verification of a reflectionless bianisotropic Huygens' metasurface for wide-angle refraction
- Metasurfaces 3.0: a New Paradigm for Enabling Smart Electromagnetic Environments
- Waveform-Selective Mantle Cloaks for Intelligent Antennas
- Towards a Heterogeneous Smart Electromagnetic Environment for Millimeter-Wave Communications: An Industrial Viewpoint
- Quadratic-Gradient Metasurface-Dome for Wide-Angle Beam Steering Phased Array with Reduced Gain-Loss at Broadside
- Surface Impedance Modeling of All-Dielectric Metasurfaces
- Pulse-Driven Self-Reconfigurable Meta-Antennas
- On the Use of Nonlinear Metasurfaces for Circumventing Fundamental Limits of Mantle Cloaking for Antennas
- Metasurface Dome for Above-the-Horizon Grating Lobes Reduction in 5G-NR Systems