Analysis of Interference with WPT Mobile and Portable Devices That Use NFC
- Resource Type
- Academic Journal
- Authors
- Yanming Cheng; Ilkyoo Lee; Cheng Liu; Jing Niu
- Source
- IEIE Transactions on Smart Processing & Computing. 2019-10 8(5):380-384
- Subject
- Interference
WPT
NFC
MCL
MC
Maximum allowed transmitting power
- Language
- Korean
- ISSN
- 2287-5255
Currently, interest in wireless power transfer (WPT) is increasing for mobile- and portable-device applications. It is necessary to analyze the interference between WPT chargers and other wireless devices for the efficient use of frequency resources. In this paper, the impact of a WPT charger for a cellular phone and a near field communication (NFC) device is analyzed by using the minimum coupling loss (MCL) method and the Monte Carlo (MC) method. As a result, the difference in the maximum allowed transmitting power of a WPT charger is obtained based on different numbers of WPT chargers in order to protect NFC devices without a protection distance between them and the WPT charger. The analysis approach and results are expected to be used as a guideline to investigate the coexistence of low-power devices.