Low-Cost Miniaturized NFC Antenna Design for Mobile Phone

Authors

  • Weijia Li 1 National Engineering Research Center of Electromagnetic Radiation Control Materials University of Electronic Science and Technology of China, Chengdu, 611731, China, 2 Key Laboratory of Multi-spectral Absorbing Materials and Structures of Ministry of Education University of Electronic Science and Technology of China, Chengdu, 611731, China
  • Difei Liang 1 National Engineering Research Center of Electromagnetic Radiation Control Materials University of Electronic Science and Technology of China, Chengdu, 611731, China 2 Key Laboratory of Multi-spectral Absorbing Materials and Structures of Ministry of Education University of Electronic Science and Technology of China, Chengdu, 611731, China
  • Liang Chen 1 National Engineering Research Center of Electromagnetic Radiation Control Materials University of Electronic Science and Technology of China, Chengdu, 611731, China 2 Key Laboratory of Multi-spectral Absorbing Materials and Structures of Ministry of Education University of Electronic Science and Technology of China, Chengdu, 611731, China
  • Li Zhang 1 National Engineering Research Center of Electromagnetic Radiation Control Materials University of Electronic Science and Technology of China, Chengdu, 611731, China 2 Key Laboratory of Multi-spectral Absorbing Materials and Structures of Ministry of Education University of Electronic Science and Technology of China, Chengdu, 611731, China
  • Longjiang Deng 1 National Engineering Research Center of Electromagnetic Radiation Control Materials University of Electronic Science and Technology of China, Chengdu, 611731, China 2 Key Laboratory of Multi-spectral Absorbing Materials and Structures of Ministry of Education University of Electronic Science and Technology of China, Chengdu, 611731, China

Keywords:

Magnetic substrate, miniaturization, NFC antenna

Abstract

A low-cost and miniaturized NFC antenna design for mobile phone is proposed. Among all the phone antennas, NFC antenna is the biggest one, thus leading to higher manufacturing costs and adverse conditions for device integration. It is well known that four radiation sides are used in the traditional NFC antennas However, this letter presents a novel single side radiation slender NFC antenna structure, which well solves the adjacent sides reverse current interference through magnetic substrate selectivity laying in the traditional slender NFC antenna. This proposed structure can not only save magnetic substrate materials, but also significantly increase the radiation capacity through asymmetric structure design, and ultimately lead to a 38% increase in the communication performance. Simulation and experiment results verify that this simple design can significantly reduce the cost, suggesting a good prospect in practical use.

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References

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Published

2019-07-01

How to Cite

[1]
Weijia Li, Difei Liang, Liang Chen, Li Zhang, and Longjiang Deng, “Low-Cost Miniaturized NFC Antenna Design for Mobile Phone”, ACES Journal, vol. 34, no. 07, pp. 1043–1049, Jul. 2019.

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