Title :
A new resonant frequency tunable RFID tag antenna design
Author :
Zhang, Li ; Li, Xiuping
Author_Institution :
Sch. of Telecommun. Eng., Beijing Univ. of Posts & Telecommun., Beijing
Abstract :
A. new resonant frequency tunable double-arm square spiral RFID tag antenna is proposed. It consists of two square spiral arms and two tunable stubs attached to the edge of them. The antenna shows 40 MHz bandwidth under the condition of voltage standing wave ration (VSWR) less than 2, and can work at different UHF band standards from 840 MHz to 960 MHz by tuning the position of the two stubs at the end range of the square spiral arms. The dimension of the antenna is around 78 mmtimes50 mm and 1.76 dBi gain is obtained by simulation.
Keywords :
UHF antennas; radiofrequency identification; UHF band; bandwidth 40 MHz; double-arm square spiral RFID tag antenna; frequency 840 MHz to 960 MHz; resonant frequency tunable RFID tag antenna; square spiral arms; tunable stub; Antennas and propagation; Arm; Bandwidth; Broadband antennas; Europe; RFID tags; Radiofrequency identification; Resonant frequency; Spirals; UHF antennas;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2008. ICMMT 2008. International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-1879-4
Electronic_ISBN :
978-1-4244-1880-0
DOI :
10.1109/ICMMT.2008.4540652
