	US 12,113,298 B2
	Multiband antenna
Nicolas Attaja, Le Haillan (FR); Mauro Ettorre, Rennes (FR); Ronan Sauleau, Acigne (FR); and Davy Guihard, Le Haillan (FR)
Assigned to ARIANEGROUP SAS, Les Mureaux (FR); CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris (FR); and UNIVERSIE DE RENNES 1, Rennes (FR)
Appl. No. 18/688,635
Filed by ARIANEGROUP SAS, Les Mureaux (FR); CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris (FR); and UNIVERSITE DE RENNES 1, Rennes (FR)
PCT Filed Aug. 29, 2022, PCT No. PCT/FR2022/051615 § 371(c)(1), (2) Date Mar. 1, 2024, PCT Pub. No. WO2023/031543, PCT Pub. Date Mar. 9, 2023.
Claims priority of application No. 2109169 (FR), filed on Sep. 2, 2021.
Prior Publication US 2024/0275047 A1, Aug. 15, 2024
Int. Cl. H01Q 5/30 (2015.01); H01Q 1/28 (2006.01)

CPC H01Q 5/30 (2015.01) [H01Q 1/28 (2013.01)]

11 Claims

1. An antenna comprising at least one first resonant cavity and a second resonant cavity, each resonant cavity being closed by a base at one end and comprising a radiating element superimposed on the base of the resonant cavity, the radiating element of the first cavity being able to transmit a signal on a first frequency band and the radiating element of the second cavity being able to transmit a signal on a second frequency band separate from the first frequency band, wherein a first distance between the base- and the radiating element of the first cavity differs from a second distance (h2) between the base and the radiating element of the second cavity, the antenna also comprising a third resonant cavity closed by a base at one end and comprising a radiating element superimposed on the base of the third resonant cavity, the radiating element of the third cavity being able to transmit a signal on a third frequency band separate from the first and second frequency bands, and a third distance between the base and the radiating element of the third cavity differing at least from the first or second distance, the different resonant cavities of the first cavity being distributed over the circumference of the first cavity with minimum angular spacing θ_min=360×(1−0.25)/n, and maximum angular spacing θ_max=360×(1+0.25)/n between two consecutive cavities, with n the number of different resonant cavities of the first cavity.