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公开(公告)号：US11444386B2
公开(公告)日：2022-09-13
申请号：US17055315
申请日：2019-05-14
Applicant: Paris Sciences et Lettres , Centre National de la Recherche Scientifique (CNRS) , UNIVERSITA DEGLI STUDI DI SIENA , Politecnico Di Torino , Ecole Supérieure De Physique Et De Chimie Industrielles De La Ville De Paris , Sorbonne Universite
IPC: H01Q15/00
Abstract: An antenna assembly, comprising: a single substrate having a lower surface and an upper surface; an isotropic source of spherical electromagnetic waves configured for emitting surface waves on the upper surface; a ground plane formed on the lower surface comprising a metallic deposit on the entire lower surface; an antenna element formed on the upper surface comprising a periodic patterns metasurface formed on the substrate by a texture of subwavelength patches, the antenna element comprising: a first-scale metasurface defined by a two-dimensional alternation of metal or metamaterial patches having closely spaced vertices in each contiguous element to form small gaps; a plurality of switches disposed in the gap between the vertexes of the patches, each switch permitting to connect several patches through the vertexes for defining a second-scale metasurface having a pattern thus forming the antenna element; wherein each patch has dimensions which do not depend on the frequency of the waves to be radiated, the antenna element configured for transform the emitting surface waves on leaky waves.
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公开(公告)号：US20190104723A1
公开(公告)日：2019-04-11
申请号：US15999294
申请日：2017-02-16
Applicant: POLITECNICO DI TORINO
Inventor： Giuseppe Vecchi , Gianluca Dassano , Giorgio Anengo
Abstract: System for the disinfection of agricultural soil includes an electric energy source, at least one radiofrequency or microwave generator connected to the electric energy source and arranged to convert the electric energy into electromagnetic power and a plow-like electromagnetic applicator connected to the radiofrequency or microwave generator via wave-guiding lines, the plow-like electromagnetic applicator being arranged to be inserted into the soil so as to transmit the electromagnetic power to the soil, thus obtaining a disinfection of the soil.
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公开(公告)号：US10602734B2
公开(公告)日：2020-03-31
申请号：US15999294
申请日：2017-02-16
Applicant: POLITECNICO DI TORINO
Inventor： Giuseppe Vecchi , Gianluca Dassano , Giorgio Giordanengo
Abstract: System for the disinfection of agricultural soil includes an electric energy source, at least one radiofrequency or microwave generator connected to the electric energy source and arranged to convert the electric energy into electromagnetic power and a plow-like electromagnetic applicator connected to the radiofrequency or microwave generator via wave-guiding lines, the plow-like electromagnetic applicator being arranged to be inserted into the soil so as to transmit the electromagnetic power to the soil, thus obtaining a disinfection of the soil.
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