Electrical Model Simulation for a UHF RFID System in Near and Far Fields

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Provided by: Nottingham Trent University
Topic: Mobility
Format: PDF
Radio Frequency IDentification (RFID) deployment is needed for efficient item identification. A simulation environment in HP-ADS (Advanced Design System of agilent technologies) of Ultra High Frequency (UHF) RFID systems is constructed in this paper. This paper simulates the system through an electrical model. The tag is represented by a simple empirical model representing the antenna and the chip. The chip is modeled by its impedance which varies with the code. The tag's model is suitable for near and far field applications. A wireless channel with path loss and variable distance factors establishes the reader-tag link.
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