ANTENNA_1356 Datasheet, PDF (5/6 Pages) rfsolutions.ltd – Micro RWD MF (Mifare) Antenna Specification

ib technology
Example Antennas
A)
Wire wound coil 0.450mm diameter (26 swg) Enamelled Cu wire.
Antenna 6.5 cm internal diameter, 2 turns.
Inductance approx 1.2uH (micro Henry)
Maximum range: approx 5cm with ISO card transponders
C1/C2 = 22pF
C3/C4 = 220pF, Rext = 0R (zero ohm)
IBT Evaluation kit antenna
10mm between coil and PCB
assembly
65mm
TX1
GND
TX2
30mm long connecting wires with stripped
tinned ends (ribbon cable).
Antenna coil 65mm diameter, 2 turns 0.45mm diameter En Cu
wire (26 SWG). Wire covered in contact adhesive (“Evo-stik”)
or bound in PTFE tape to stiffen coil assembly.
B)
PCB antenna
Dimensions: 51 x 42 mm
Track width: 1.27 mm, 35uM Cu thickness
Distance between 2 turns: 1.75 mm
Number of turns: 4
Inductance approx 1.2uH
Rext = 0.5 R
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