User's Manual Part 1

13,56 MHz Multitag Reader Module, Version 0.9v
ACG Identification Technologies AT Page 51
9.1.4 Antenna matching circuit:
Figure 9-4: Antenna matching circuit
9.1.4.1 Connecting scheme
Pin Nr Pin Description
1 ARX Antenna RX
2 ATX1 Antenna TX
5 RFU Not connected
6 TGND Antenna ground
Figure 9-5: Antenna connecting scheme
9.1.4.2 Component values:
Component Description
C1 100 pF
C3 68 pF
C4 0R0 (jumper)
C5 8-40 pF
R
8,2 kΩ
Figure 9-6: Antenna components
C3
C4
R
C1
C5
L
A
nt
Pin 1
Pin 2
Pin 6
Pin 5