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Interference Analysis and Experimental Results of Passive UHF RFID Systems in Sub-1 GHz Wireless Communications Systems

By Ji-Hong Kim, Jong-Won Kwon, Jin-Yong Kim, Min-Gyo Jeong, Sang-Hyeon Bae, and Wang-Sang Lee
Progress In Electromagnetics Research C, Vol. 76, 129-137, 2017


As ultra high frequency (UHF) radio frequency identification (RFID) technology, a smart recognition technology, has been gradually spreading to various applications, and several sub-1 GHz wireless technologies are being standardized and developed. As such technologies operate at a specific frequency band (902-928 MHz industrial, scientific, and medical (ISM) bands), the impact of RF interference due to performance degradation of UHF RFID technology on the interference signal is emerging as a new obstacle. In this paper, we investigate the interference analysis and experimental results of passive UHF RFID systems in sub-1GHz wireless communications systems. By considering interference signal frequency and power, interference deployment, antenna polarization, RF system-level analysis, and experimental verification are conducted to evaluate the impact of performance degradation in the UHF RFID system on the interference signal.


Ji-Hong Kim, Jong-Won Kwon, Jin-Yong Kim, Min-Gyo Jeong, Sang-Hyeon Bae, and Wang-Sang Lee, "Interference Analysis and Experimental Results of Passive UHF RFID Systems in Sub-1 GHz Wireless Communications Systems," Progress In Electromagnetics Research C, Vol. 76, 129-137, 2017.


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