Title :
T-matching variation effect of RFID tag antenna for 915MHz
Author :
Costa, Flavia C. ; Yoshioka, Ricardo T. ; Lima, Eduardo R. ; Leite, Fernando I.
Author_Institution :
Design House Dept., Eldorado Res. Inst., Campinas, Brazil
Abstract :
In this paper, a miniature antenna for a passive UHF RFID tag is designed. The simulation is carried out by using CST Microwave Studio program based on the Finite Integral Technique (FIT). The T-Match dimensions were optimized and evaluated using the CST Microwave Studio and S parameters of the fabricated antenna were measured using a two-port VNA. A calibration procedure was used to correct the error that the material specifications can cause in the impedance results. Moreover, the proposed antenna is simple structure, with a low profile and easy fabrication.
Keywords :
S-parameters; UHF antennas; integral equations; radiofrequency identification; telecommunication computing; CST Microwave Studio program; FIT; S parameters; T-match dimensions; T-matching variation effect; calibration procedure; finite integral technique; frequency 915 MHz; passive UHF RFID tag antenna; two-port VNA; Antennas; Gain measurement; Impedance; Microwave measurement; Semiconductor device measurement; UHF measurements; Impedance measurement; T-match; UHF RFID tag antenna;
Conference_Titel :
Brasil RFID, 2014 IEEE
Print_ISBN :
978-1-4799-7045-2
DOI :
10.1109/BrasilRFID.2014.7128951
