Extending the range of NFC capable devices

Near Field Communication (NFC) is a short range radio frequency technology. Because of the short range, cloning attacks of NFC devices are impractical. To make this possible, you would need to be very close to the tag. Currently, a lot of research has been done on NFC range extension. However, almost all of this research is executed in a lab environment that is not comparable to a day-to-day working environment. During this research, we research NFC range extension in a day-to-day environment. Specifically, we look at the size of the rectangular loop antenna using a mathematical formula. Also, we research the optimal orientation and angle of NFC tags compared to the antenna. Finally, we are also researching the impact on the range when multiple NFC tags are introduced within the range of the NFC reader. At the end of this research we were able to extend the range of NFC to 13.4 cm by creating our own antennas. We also identified that the length of the wire, diameter of the wire and the angle of the smart card does influence the range of NFC. However, orientation does not. Introducing multiple smart cards into the range would influence the reliability of the identification of smart cards.