INDUCTANCE COIL FOR RFID TAG Russian patent published in 2024 - IPC G06K19/77 H01Q1/00 H01Q7/00 

FIELD: inductance coil.

SUBSTANCE: inductor is used in a RFID tag carrying an RF chip and a circuit board on which a template inductor is installed connected to the RF chip, and the RFID tag is installed in a bus; the inductor is held in a ring-shaped groove in the housing, which contains the circuit board, and rings the circuit board; the first end of the inductor protrudes from the housing and forms the first antenna element; the second end of the inductor protrudes from the housing and forms the second antenna element; the first element and the second element are located in parallel, and the length of the extension of the first element is greater than the length of the extension of the second element; the inductor and the template inductor form a coupling transformer and the number of turns of the inductor is less as compared to the number of turns of the template inductor.

EFFECT: improved communication characteristics when installing a RFID tag containing an inductance coil in the bus.

6 cl, 22 dwg