US 12,080,955 B2
Wideband wire antenna
Jefferson Champion, Brest (FR); Stéphane Mallegol, Brest (FR); Ismaël Pele, Brest (FR); Erwan Goron, Brest (FR); Jessica Benedicto, Brest (FR); Noham Guy Philippe Martin, Brest (FR); Rozenn Allanic, Brest (FR); and Cédric Quendo, Brest (FR)
Assigned to THALES, Courbevoie (FR); UNIVERSITE DE BRETAGNE OCCIDENTALE, Brest (FR); and CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris (FR)
Filed by THALES, Courbevoie France (FR); UNIVERSITE DE BRETAGNE OCCIDENTALE, Brest (FR); and Centre national de la recherche scientifique, Paris (FR)
Filed on Dec. 19, 2022, as Appl. No. 18/084,398.
Claims priority of application No. 21 14098 (FR), filed on Dec. 21, 2021.
Prior Publication US 2023/0198157 A1, Jun. 22, 2023
Int. Cl. H01Q 5/25 (2015.01); H01Q 9/27 (2006.01)
CPC H01Q 5/25 (2015.01) [H01Q 9/27 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wideband wire antenna comprising:
a radiating element, the radiating element comprising at least one metal wire shaped around an axis of the antenna, in a transverse radiating plane;
a reflecting plane, the reflecting plane being transverse to the axis, the radiating plane being located at a predetermined height above the reflecting plane; and,
a substrate, the substrate being interposed between the radiating element and the reflecting plane, and having a constant thickness,
wherein a local relative electrical permittivity and/or a local relative electrical permeability f the substrate is a function of the radius, measured as a distance to the axis, and a height, measured as a distance to the reflecting plane, the local relative electrical permittivity and/or a local relative electrical permeability being, at constant height, increasing as a function of the radius, and, at constant radius, increasing as a function of the height at least for a portion of the substrate in the vicinity of the reflecting plane.