US 12,367,372 B2
RFID assembly
Elies Ennabli, Lausanne (CH); and Eric Suligoj, Froideville (CH)
Assigned to ASSA ABLOY AB, Stockholm (SE)
Appl. No. 17/757,654
Filed by ASSA ABLOY AB, Stockholm (SE)
PCT Filed Nov. 27, 2020, PCT No. PCT/EP2020/083735
§ 371(c)(1), (2) Date Jun. 17, 2022,
PCT Pub. No. WO2021/121910, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 19218549 (EP), filed on Dec. 20, 2019.
Prior Publication US 2023/0019696 A1, Jan. 19, 2023
Int. Cl. G06K 19/077 (2006.01)
CPC G06K 19/07767 (2013.01) [G06K 19/07728 (2013.01); G06K 19/07786 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An RFID assembly comprising:
a support having a first surface;
a planar ultra high frequency (UHF) antenna with a read range of several meters, the UHF antenna being arranged on the first surface with an elongated shape and being electrically connected to a first integrated circuit; and
a high frequency (HF) or low frequency (LF) antenna with a read range of several millimeters, the HF or LF antenna being connected to a second integrated circuit and partially overlapping an end portion of the UHF antenna in a longitudinal direction of the same when viewed in a direction perpendicular to the first surface enabling capacitive coupling between the UHF antenna and the HF or LF antenna;
wherein an air gap is provided in the direction perpendicular to the first surface between the UHF antenna and the HF or LF antenna where the HF or LF antenna partially overlaps the end portion of the UHF antenna.