[eBook Code] UHF RFID Technologies for Identification and Traceability (eBook Code, 1st)

Introduction ix

Chapter 1 Design and Performance of UHF TAG Integrated Circuits 1

1.1 Introduction 1

1.2 Integrated circuit atchitecture 2

1.3 RF to DC conversion: modeling the system 3

1.4 RF to DC conversion: proposed circuits and performances 21

1.5 Voltage limiter and regulator 26

1.6 Demodulator 27

1.7 Oscillator 29

1.8 Modulator 30

1.9 Digital blocks 31

1.10 Technology, performances and trends 32

1.11 Bibliography 36

Chapter 2 Design of UHF RFID Tags 41

2.1 Tag antenna design 41

2.2 Matching between the antenna impedance and the microchip impedance 65

2.3 RFID tag antennas using an inductively coupled feed 79

2.4 Combined RFID tag antenna for recipients containing liquids 83

2.5 Tag on metal 89

2.6 Bibliography 106

Chapter 3 The Backscattering Technique and Its Application 111

3.1 Backscattering principle of communication by between-base station and tag 112

3.2 The merit factor of a tag, Δσ e s or ΔRCS 116

3.3 Variations of Δσ e s = ƒ(a) 128

3.4 After the theory, RFID at UHF and SHF realities 128

3.5 Measuring ΔRCS 138

3.6 The "Radar" equation 144

3.7 Appendix: summary of the principal formulas 145

Chapter 4 RFID Markets 149

4.1 Introduction 149

4.2 Market inflection point: users 149

4.3 RFID: what for? 150

4.4 Open- and closed-loop applications 152

4.5 RFID return on investment 153

4.6 Many RFID technologies 156

4.7 Examples 157

4.8 Next RFID: product-embedded and seamless infrastructure 160

Index 169