Radiation from vertical dipole sources placed inside a grounded dielectric slab covered with a thin microstructured metal screen having annular geometry is studied. The screen is represented through a locally homogenized surface impedance dyadic independent of the azimuthal coordinate, hence is a homogenized omnidirectional metasurface. The excited field is also omnidirectional; we propose here both analytical and numerical models for the calculation of its far-field pattern, the former valid for radially constant surface impedances, the latter valid for piecewise-constant impedances.
Baccarelli, P., & Galli, A. (2014). Radiation from vertical dipole sources in the presence of homogenized omnidirectional metasurfaces. In Proc. 8th European Conference on Antennas and Propagation 2014 (pp.1933-1934) [10.1109/EuCAP.2014.6902119].
Titolo: | Radiation from vertical dipole sources in the presence of homogenized omnidirectional metasurfaces | |
Autori: | ||
Data di pubblicazione: | 2014 | |
Citazione: | Baccarelli, P., & Galli, A. (2014). Radiation from vertical dipole sources in the presence of homogenized omnidirectional metasurfaces. In Proc. 8th European Conference on Antennas and Propagation 2014 (pp.1933-1934) [10.1109/EuCAP.2014.6902119]. | |
Abstract: | Radiation from vertical dipole sources placed inside a grounded dielectric slab covered with a thin microstructured metal screen having annular geometry is studied. The screen is represented through a locally homogenized surface impedance dyadic independent of the azimuthal coordinate, hence is a homogenized omnidirectional metasurface. The excited field is also omnidirectional; we propose here both analytical and numerical models for the calculation of its far-field pattern, the former valid for radially constant surface impedances, the latter valid for piecewise-constant impedances. | |
Handle: | http://hdl.handle.net/11590/327936 | |
ISBN: | 978-889070184-9 | |
Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |