EP 3628104 A1 20200401 - ANTENNA SYSTEM FOR NFC READER
Title (en)
ANTENNA SYSTEM FOR NFC READER
Title (de)
ANTENNENSYSTEM FÜR NFC-LESER
Title (fr)
SYSTÈME D'ANTENNE POUR LECTEUR NFC
Publication
Application
Priority
- SK 500312017 A 20170427
- IB 2018052929 W 20180427
Abstract (en)
[origin: WO2018198082A1] Two solenoid antennas (2, 3) with a ferrite core are placed mutually in parallel and outside the groundplan of the flat spiral antenna (1). Longitudinal axes (4) of the solenoid antennas (2, 3) are in parallel with the lateral sides of the flat spira antenna (1) and the distance between the longitudinal axes (4) of the solenoid antennas (2, 3) is 0,5 to 1,25 times the width of the flat spiral antenna (1) at most. The middle of the flat spira antenna (1) lies in a zone defined by the prolonged longitudinal axes (4) of the solenoid antennas (2, 3). The solenoid antennas (2, 3) are connected to the same output of the excitation element; preferably the solenoid antennas (2, 3) are identical. The flat spiral antenna (1) can be connected to the NFC chip (7) thorugh the low noise amplifier (6). The solenoid antennas (2, 3) can be on one side of the printed circuit board (5) and the flat spiral antenna (1) can be on the opposite side of the printed circuit board (5).
IPC 8 full level
H01Q 1/22 (2006.01); G06K 19/077 (2006.01); H01Q 7/00 (2006.01); H01Q 7/06 (2006.01); H01Q 21/29 (2006.01); H04B 5/00 (2006.01)
CPC (source: EP)
G06K 7/10316 (2013.01); H01Q 1/2216 (2013.01); H01Q 7/00 (2013.01); H01Q 7/06 (2013.01); H01Q 21/29 (2013.01); H04B 5/26 (2024.01); H04B 5/43 (2024.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2018198082 A1 20181101; EP 3628104 A1 20200401; SK 500312017 A3 20181105
DOCDB simple family (application)
IB 2018052929 W 20180427; EP 18730101 A 20180427; SK 500312017 A 20170427