Summary
International Symposium on Antennas and Propagation
2011
Session Number:FrD4
Session:
Number:FrD4-3
UHF RFID tag antenna for both dielectric and metallic objects
Jaeyul Choo, Jeongki Ryoo,
pp.-
Publication Date:2011/10/25
Online ISSN:2188-5079
Summary:
This paper presents a label tag and a radiator for both dielectric and metallic target objects of radio frequency identification (RFID). Good impedance matching is achieved by a cross-shaped loop when it places on dielectric objects and radiating patches, printed on a plastic substrate and a finite ground plane. After optimization and fabrication based on geometrical study, the manufactured tag shows half power bandwidth of 65 MHz (7.1%) and 17 MHz (1.9%), in free space and on the underlying radiator, respectively. Moreover we confirmed reading range of about 8 m in condition of 36 dBm EIRP in UHF RFID frequency band.