Title :
Optimization of Tag Antenna for RFID System
Author :
Wang, Dan ; Xu, Lei ; Huang, Huiming ; Sun, Daoheng
Author_Institution :
Dept. of Mech. & Electr. Eng., Xiamen Univ., Xiamen, China
Abstract :
Tag antenna can make RFID tags be read at a distance and do not require a line of sight between tag and reader. This paper describes design and optimization aspects of antenna coil of tag for RFID system in High Frequency (HF) band. An equivalent circuit of tag is established and a new detailed design method is demonstrated. An experimental formula with high efficiency is used to calculate the inductance of the coil. It also presents a method for inductor optimization for tag antenna design which can set different objective functions and constraints for corresponding purpose in different conditions easily. Through the calculation of Matlab, the result of this method is feasible and globally convergent.
Keywords :
HF antennas; radiofrequency identification; antenna coil; equivalent circuit; inductor optimization; radiofrequency identification; tag antenna; Coils; Constraint optimization; Design methodology; Design optimization; Equivalent circuits; Frequency; Hafnium; Inductance; Inductors; RFID tags; Q factor; RFID; design flow; equivalent circuit; optimization; tag antenna;
Conference_Titel :
Information Technology and Computer Science, 2009. ITCS 2009. International Conference on
Conference_Location :
Kiev
Print_ISBN :
978-0-7695-3688-0
DOI :
10.1109/ITCS.2009.145
