US 12,230,885 B2
RF device with isolated antennas
Madani Kartout, Rueil Malmaison (FR)
Assigned to SAGEMCOM BROADBAND SAS, Rueil Malmaison (FR)
Filed by SAGEMCOM BROADBAND SAS, Rueil Malmaison (FR)
Filed on Oct. 14, 2022, as Appl. No. 17/966,308.
Claims priority of application No. 2110982 (FR), filed on Oct. 15, 2021.
Prior Publication US 2023/0120328 A1, Apr. 20, 2023
Int. Cl. H01Q 21/28 (2006.01); H01Q 9/28 (2006.01); H01Q 21/20 (2006.01)
CPC H01Q 21/28 (2013.01) [H01Q 9/285 (2013.01); H01Q 21/20 (2013.01)] 29 Claims
OG exemplary drawing
 
1. An RF device comprising:
a first antenna set comprising a first antenna and a second antenna, the first and second antennas being planar in shape and both lying in a common first plane, the first antenna being arranged to operate in a first frequency band and the second antenna being arranged to operate in a second frequency band;
a first isolator, the first isolator being planar in shape and lying in the first plane between the first and second antennas, the first isolator having at least one branch that is electrically conductive, the first isolator being electrically floating, the first isolator being arranged to reduce first coupling by electromagnetic radiation between the first and second antennas in the first frequency band and/or in the second frequency band;
at least one second isolator having at least one electrically conductive branch, the second isolator being electrically floating, the second isolator being positioned on one side of a particular antenna selected from the first and second antennas, said side of the particular antenna being remote from the first isolator, the second isolator being arranged to correct a modification to the directivity of the particular antenna as caused by the presence of the first isolator.