Dual Purpose Near- and Far-Field UHF RFID Coil Antenna With Non-Uniformly Distributed-Turns
Garcia Zuazola, Ignacio Julio
Batchelor, John C.
- Publisher: Institute of Electrical and Electronic Engineers
TK7871.6 | TK7871.67.M53
An Ultra-High-Frequency (UHF) Radio Frequency IDentification (RFID) coil antenna with Non-uniformly Distributed-Turns and realized using a segmented-line (SL) is proposed. The Segmented-Line Non-uniformly Distributed-Turns Coil (SL-NDTC) uses non-uniformly distributed turns radii that have been optimized for reactive and radiative read performance. This leads to a dual purpose near- and far-field antenna in a single unit. Simulations show a more focused magnetic-field (H-field)distribution in the near field of the SL-NDTC compared to more conventional coils. Single and dual turn designs are compared to\ud the SL-NDTC antenna to evidence enhanced near- and far-field performance in the latter.
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