Physical Review, 67, 351.
Electromagnetic Coupling in RFID 247
13
RFID Tags for Metallic Object Identi?¬?cation
Mun Leng Ng, Kin Seong Leong, and Peter H. Cole
CONTENTS
13.1 Introduction ...................................................................................................................... 249
13.2 Electromagnetic Waves near Metallic Surfaces ........................................................... 250
13.3 Effects of Metallic Surfaces on RFID Tag Antennas................................................... 251
13.4 RFID Tag Antennas Suitable for Metallic Surfaces..................................................... 253
13.4.1 RFID Tag with a Simple Rectangular Patch Antenna................................... 253
13.4.2 RFID Tag with a Small Loop Antenna............................................................ 255
13.4.3 Other RFID Tags ................................................................................................. 258
13.5 Conclusion ........................................................................................................................ 258
References................................................................................................................................... 258
13.1 Introduction
RFID is a technology that has existed for many years, but it is only recently that it has
experienced the rapid growth that has arisen from application of this technology in various
supply chains.
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