1. Chapter 5 – Design of Passive Tag RFID Readers

2. Figure 5.1 A RFID reader interacting with a tag

3. Figure 5.2 Transmit spectrum mask example
PR-ASK modulated reader with an ETSI mask (Tari = 12.5μs, with data ‘1’ 0.5 Tari longer than data ‘0’)

4. Figure 5.3 An example of a RFID reader to tag communication packet

5. Figure 5.4 (a) ISO C tag modulation spectrum plot in reference to the carrier frequency: FM0 modulated

6. Figure 5.4 (b) ISO C tag modulation spectrum plot in reference to the carrier frequency: Miller subcarrier modulated

7. Figure 5.5 Protocol followed between a reader and a tag

8. Figure 5.6 A few example implementations of UHF ISO 18000-6C compliant RFID readers
Reproduced by permission of Impinj®, Inc.

9. Figure 5.7 Sensitivity and available tag power versus reader range

10. Figure 5.8 Block diagram of a generic RFID reader implementation

11. Figure 5.9 Illustration of antenna radiation pattern
(Reproduced from PolarPlot by permission of Bob Freeth)

12. Figure 5.10 Mono-static and bi-static configuration

13. Figure 5.11 A RFID transceiver implementation

14. Figure 5.12 DC offset correction

15. Figure 5.13 Self-jammer cancellation problem fomulation

16. Figure 5.14 Transmitter carrier leakage cancellation implementation

17. Figure 5.15 Tag reply collisions