Title :
RFID Smart Shelf With Confined Detection Volume at UHF
Author :
Medeiros, Carla R. ; Costa, Jorge R. ; Fernandes, Carlos A.
Author_Institution :
Inst. de Telecomun., Lisbon
fDate :
6/30/1905 12:00:00 AM
Abstract :
This letter presents a smart shelf configuration for radio frequency identification (RFID) application. The proposed shelf has an embedded leaking microstrip transmission line with extended ground plane. This structure, when connected to an RFID reader, allows detecting tagged objects in close proximity with proper field confinement to avoid undesired reading of neighboring shelves. The working frequency band covers simultaneously the three world assigned RFID subbands at ultrahigh frequency (UHF). The concept is explored by full-wave simulations and it is validated with thorough experimental tests.
Keywords :
UHF antennas; microstrip antennas; radiofrequency identification; transmission lines; UHF antennas; extended ground plane; microstrip antennas; microstrip transmission line; radiofrequency identification; reader antenna; smart shelf configuration; Microstrip antennas; near fields; radio frequency identification (RFID); reader antenna; smart shelf;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2008.2008672
