Title :
Impedance analysis of the fragment-type tag antenna using FDTD
Author :
Zusheng, Jin ; Hu, Yang ; Xingji, Tang ; Junjie, Mao
Author_Institution :
Coll. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha
Abstract :
The impedance matching between the tag antenna and the IC chip is a crucial problem attracting increasing attentions recently. This paper firstly presents a study on impedance calculation of a metal strip dipole using finite-difference time-domain (FDTD) method with unsplit perfectly matched layer (UPML) absorbing boundary condition. On this basis, the impedance characteristic of the fragment-type tag antenna is analyzed. More accurate results are obtained. Comparisons with the commercial software results show the accuracy and validity of the method.
Keywords :
dipole antennas; finite difference time-domain analysis; radiofrequency identification; FDTD; IC chip; finite-difference time-domain method; fragment-type tag antenna; impedance analysis; impedance matching; unsplit perfectly matched layer; Animals; Antenna feeds; Bandwidth; Broadband antennas; Dipole antennas; Finite difference methods; Impedance matching; Microstrip antennas; Radiofrequency identification; Time domain analysis; FDTD; RFID; fragment-type tag antenna;
Conference_Titel :
Antennas, Propagation and EM Theory, 2008. ISAPE 2008. 8th International Symposium on
Conference_Location :
Kunming
Print_ISBN :
978-1-4244-2192-3
Electronic_ISBN :
978-1-4244-2193-0
DOI :
10.1109/ISAPE.2008.4735193
