Design of NFC Tag Loop Antenna Based on PCB Material

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Abstract:

The Near Field Communication (NFC) is a short-range radio technology operating in the frequency of 13.56 MHz. This paper introduces a kind of double sided PCB loop antenna which is designed for small size NFC tag working in complex environment, and proposes a solution to improve the quality factor of NFC tag. Based on the electromagnetic wave theory, the NFC communication protocol and the tag equivalent circuit, we discuss the effect of inductance and resistance to the resonance point and the quality factor of NFC tag with MATLAB mathematical tools. Then we use ADS software to modeling and simulation of the label and loop antenna. The designed NFC tag loop antenna meets the resonant requirements and has good properties of S11 and quality factor.

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547-550

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December 2014

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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