Title :
Design of a UHF RFID metal tag for long reading range using a cavity structure
Author :
Lee, Kyoung Hwan ; Lee, Jin-Seong ; Kim, Goojo ; Yeo, Junho ; Moon, Byung Hyun ; Yang, Jeenmo ; Kim, Hee Cheol
Author_Institution :
Ubiquitous Technol. Res. Center, Daegu
Abstract :
A novel UHF RFID metal tag antenna using a cavity structure for long reading range is proposed. The size of the proposed tag is 176.0 x 61.0 x 31.0 (mm3) and it can be applied for large metal materials and heavy equipments. The measured reading range is about 1 lm in free space and 15 m when attached to a metal plate. The reading range of the tag at attached to a metal is 4m better than that of the tag in free space.
Keywords :
UHF antennas; radiofrequency identification; UHF RFID metal tag antenna; cavity structure; metal plate; radio frequency identification; Animals; Antenna measurements; Banking; Dipole antennas; Helical antennas; Impedance; Inorganic materials; RFID tags; Radiofrequency identification; UHF measurements;
Conference_Titel :
Microwave Conference, 2008. APMC 2008. Asia-Pacific
Conference_Location :
Macau
Print_ISBN :
978-1-4244-2641-6
Electronic_ISBN :
978-1-4244-2642-3
DOI :
10.1109/APMC.2008.4958397
