Title :
Influence of substrate types and reflector proximities over a NDTC antenna
Author :
Sharma, Ashok ; Garcia Zuazola, I.J. ; Batchelor, John C. ; Perallos, Asier
Author_Institution :
Deusto Inst. of Technol. - DeustoTech, Univ. of Deusto, Bilbao, Spain
Abstract :
The influence of dissimilar substrates and reflector proximities over a newly developed Non-uniformly Distributed-Turns Coil (NDTC) antenna for High-Frequency (HF) Radio Frequency IDentification (RFID) applications is presented. In the study, the performance of the HF-RFID NDTC antenna over various substrates with deposited conductor thicknesses is conducted. In addition, the effect over a conceivably encountered reflector in the proximity of the antenna is considered. Insensitive reflection coefficient (S11) responses for different substrate permittivities were experienced and the diverse conductor types and thicknesses contributed to a compromised magnetic-field (H-field) and recalculated matching network. The matching network additionally preserves resonance when the antennas is in close proximity to the reflector and a predictable H-field response for the separation range is shown.
Keywords :
antenna radiation patterns; permittivity; radiofrequency identification; reflector antennas; HF-RFID NDTC antenna reflector proximity; S11 response; deposited conductor thicknesses; high-frequency radio frequency identification application; insensitive reflection coefficient response; magnetic field matching network; nonuniformly distributed turn coil antenna; predictable H-field response; separation range; substrate permittivity; substrate proximity influence; Antennas; Coils; Conductors; Positron emission tomography; Radiofrequency identification; Substrates; Near-field; RFID; magnetically coupled coils;
Conference_Titel :
Antennas and Propagation Conference (LAPC), 2014 Loughborough
Conference_Location :
Loughborough
DOI :
10.1109/LAPC.2014.6996417
