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A Dual Resonance Near Field Communication Coil for EMF Reduction in Near Field Communication and Wireless Power Transfer Dual Coil System
- Source :
- 2019 IEEE International Symposium on Electromagnetic Compatibility, Signal & Power Integrity (EMC+SIPI).
- Publication Year :
- 2019
- Publisher :
- IEEE, 2019.
-
Abstract
- Current wireless power transfer (WPT) technology is widely used for various applications because of convenience and safety. One of the typical application of the WPT system is the near-field communication (NFC) system utilized mobile WPT system. However, WPT systems have problems with electromagnetic field (EMF) leakage which can cause electromagnetic interference (EMI) issues on the nearby electrical devices. In this paper, we propose the dual resonance NFC coil for EMF reduction. Proposed dual resonance coil generates resonance not only at the NFC operating frequency of 13.56 MHz but also at the wireless charging frequency 130 kHz. When comparing the proposed NFC coil with a typical NFC antenna, the total EMF level of the WPT system is reduced by 3.96 dB at 130 kHz without any effect at the NFC operating frequency of 13.56 MHz.
- Subjects :
- Electromagnetic field
Physics
business.industry
020208 electrical & electronic engineering
Electrical engineering
020206 networking & telecommunications
02 engineering and technology
Inductive charging
Electromagnetic interference
Near field communication
EMI
Electromagnetic coil
0202 electrical engineering, electronic engineering, information engineering
Wireless
Wireless power transfer
business
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- 2019 IEEE International Symposium on Electromagnetic Compatibility, Signal & Power Integrity (EMC+SIPI)
- Accession number :
- edsair.doi...........2dd0a2612852224f50dca3c155a39067