Test PCD Antenna - AIT Austrian Institute of Technology

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RFID Testlab
MIFARE® Certification Institute
Document Nr. 9001-1
Test PCD Antenna
References:
Proximity:
Vicinity:
RFID:
PCB part number: 9001-1 V20
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/16
ISO/IEC CD 10373-6.2 (22.12.2008)
This design complies with ISO/IEC 10373-6 draft rev. 2.
ISO/IEC 10373-7:2008
ISO/IEC TR 18047-3
1. Schematic
The layout of the impedance matching network was designed to hold either the components
for 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) version
of 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 the
antenna coil.
Note:
Fitting for ISO/IEC 10373-7, ISO/IEC TR 18047-3 and ECMA-356 is the same as
for fc/128.
RFID Testlab
MIFARE® Certification Institute
Document 9001-1 rev. 2.4
page 1
Rext depends on the usable bit-rate according to the following table.
Impedance
matching network
for bit-rate of
fc/128
1
)
fc/64, fc/32, fc/16
2
)
Hmax
Rext value
Parts
Value
12 A/m
0.94 Ohm
R1 …. R5
4.7 Ohm
7.5 A/m
4.7 Ohm
R1A … R4A
4.7 Ohm
Rext - Circuit
1
) Also for ISO/IEC 10373-7, ISO/IEC TR 18047-3 and ECMA-356
) May also be used for fc/128
2
The input impedance shall be adjusted to (50±5) Ohms at a phase angle of ±5 degrees at the
operating 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
---
optional 1)
C1c
Capacitor, ceramics
---
optional )
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 Ohm 2)
10W thick film, low inductance,
e.g. BI technologies BPC 10
J1
SMB edge connector
1
e.g. Radiall R 114 665 000
1
) Optional, adjust for Zin = 50 Ohms
) Total resistance: 0.94 Ohm
2
Alternative fitting: C1a = C1b = 22pF, C2 = C3 = 100pF
RFID Testlab
MIFARE® Certification Institute
Document 9001-1 rev. 2.4
page 2
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
---
optional 1)
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 Ohm 2)
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
) Total resistance: 4.7 Ohm
2
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.
RFID Testlab
MIFARE® Certification Institute
Document 9001-1 rev. 2.4
page 3
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.
RFID Testlab
MIFARE® Certification Institute
Document 9001-1 rev. 2.4
page 4
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