volume | PIER Journals

Abstract

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.

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Dr. Ji-Hong Kim

Dr. Jong-Won Kwon

Dr. Jin-Yong Kim

Dr. Min-Gyo Jeong

Dr. Sang-Hyeon Bae

Prof. Wang-Sang Lee