Title :
RFID Tag Antenna Design Based on an Improved Coupling Source Shape
Author :
Xu-Bao Sun ; Jun Xie ; Mao-Yong Cao
Author_Institution :
Coll. of Inf. & Electr. Eng., Shandong Univ. of Sci. & Technol., Qingdao, China
Abstract :
An improved coupling source structure for radio frequency identification (RFID) tag antenna is proposed, which can not only achieve broadband operation, but can also easily carry out a complex conjugate impedance match between antenna and RFID chip. The impedance bandwidth of the proposed antenna is approximately 15% (842-985 MHz) with respect to the center frequency of 925 MHz and covers the entire UHF RFID frequency band. It is confirmed that this kind of antenna is suitable for all the different tag antennas´ applications.
Keywords :
UHF antennas; couplings; radiofrequency identification; RFID chip; RFID tag antenna design; bandwidth 842 MHz to 985 MHz; broadband operation; complex conjugate impedance; coupling source shape; radio frequency identification tag antenna; Gain; radio frequency identification (RFID); tag antenna; wideband;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2013.2255856
