antenna coil
TRANSCRIPT
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RFID Testlab page 1MIFARE
® Certification Institute
Document 9001-1 rev. 2.4
RFID TestlabMIFARE
® Certification Institute
Document Nr. 9001-1
Test PCD Antenna PCB part number: 9001-1 V20
References:Proximity: ISO/IEC 10373-6:2001 for bit rate fc/128
ISO/IEC 10373-6:2001/FDAM 5:2005 for bit rates fc/64, fc/32 and fc/16ISO/IEC CD 10373-6.2 (22.12.2008)This design complies with ISO/IEC 10373-6 draft rev. 2.
Vicinity: ISO/IEC 10373-7:2008RFID: ISO/IEC TR 18047-3
1. Schematic
The layout of the impedance matching network was designed to hold either the componentsfor the basic bit-rate fc/128 version of ISO/IEC 10373-6:2001 as well as ISO/IEC 10373-7,
ISO/IEC TR 18047-3 and ECMA-356 or for the high bit-rates (fc/64, fc/32 and fc/16) versionof ISO/IEC 10373-6:2001/FDAM 5:2007.
Following draft rev. 2 of ISO/IEC 10373-6, the resistor Rext is wired on the ground side of theantenna coil.
Note: Fitting for ISO/IEC 10373-7, ISO/IEC TR 18047-3 and ECMA-356 is the same as for fc/128.
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Rext depends on the usable bit-rate according to the following table.
Impedance
matching networkfor bit-rate of Hmax Rext value Parts Value Rext - Circuit
fc/1281) 12 A/m 0.94 Ohm R1 …. R5 4.7 Ohm
fc/64, fc/32, fc/162) 7.5 A/m 4.7 Ohm R1A … R4A 4.7 Ohm
1) Also for ISO/IEC 10373-7, ISO/IEC TR 18047-3 and ECMA-356
2) May also be used for fc/128
The input impedance shall be adjusted to (50±5) Ohms at a phase angle of ±5 degrees at theoperating frequency of 13.56 MHz by C4 (and optionally C1c).
2. Parts list
2.1 Fitting for bit rate fc/128:
Reference Part Value Notes
C1a Capacitor, ceramics 47 pF 200VDC, COG
C1b Capacitor, ceramics --- optional1)
C1c Capacitor, ceramics --- optional1)
C2 Capacitor, ceramics 150 pF 200VDC, COG
C3 Capacitor, ceramics 47 pF 200VDC, COG
C4 Trim-capacitor 4.2 – 20 pF e.g. Murata TZ03R300F169B00
R1 – R5 Power resistors 5 x 4.7 Ohm2)
10W thick film, low inductance,e.g. BI technologies BPC 10
J1 SMB edge connector e.g. Radiall R 114 665 000
1) Optional, adjust for Zin = 50 Ohms
2) Total resistance: 0.94 Ohm
Alternative fitting: C1a = C1b = 22pF, C2 = C3 = 100pF
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2.2 Fitting for bit rates fc/64, fc/32 and fc/16:
Reference Part Value Notes
C1a Capacitor, ceramics 47 pF 200VDC, COG
C1b Capacitor, ceramics 33 pF 200VDC, COG
C1c Capacitor, ceramics --- optional1)
C2 Capacitor, ceramics 100 pF 200VDC, COG
C3 Capacitor, ceramics 47 pF 200VDC, COG
C4 Trim-capacitor 5 – 30 pF e.g. Murata TZ03R300F169B00
R1A – R4A Power resistors 4 x 4.7 Ohm2)
10W thick film, low inductance,e.g. BI technologies BPC 10
J1 SMB edge connector e.g. Radiall R 114 665 000
1) Optional, adjust for Zin = 50 Ohms
2) Total resistance: 4.7 Ohm
Note: For the fc/128 version fit resistors in places R1 … R5 only for the fc/64, fc/32 and fc/16 version fit places R1A … R4A only.
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3. Printed circuit board layout
Note: For the fc/128 version fit resistors in places R1 … R5 only for the fc/64, fc/32 and fc/16 version fit places R1A … R4A only.