Near-field communication device

• Main Authors: CHEIKH MOHAMED, LATHIERE FREDERIC
• Format: Patent
• Language: Chinese; English
• Published: 15.05.2020
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION

The subject of the present invention is a near field communication device (D') for the near field communication with a portable user apparatus (P). The near field communication device (D') comprises afirst communication antenna (A1) that is located on a first carrier (PCB1, PCB10); a first means (M1) used for activating the first antenna and located on a second carrier (PCB2, PCB20) which is located facing the first carrier (PCB1, PCB10) and is mechanically connected to the first carrier by pads (I). The invention proposing that the pads (I') are made of a conductive metal, and the device also comprises a second antenna (A2, A3, A20, A30, A2', A3') a first winding portion (A21, A31) of which is located at one end of the first carrier, and a second winding portion (A22, A32) is located atone end of the second carrier, wherein the two ends are opposite to one another, and the first portion and the second portion of each winding are electrically connected by the pad (I'), the second antenna emits an electromagne