Title :
Impedance measurement of dipole antenna for EPC Global compliant RFID tag
Author :
da Costa, Flavia C. ; de Lima, Eduardo R. ; Yoshioka, Ricardo T. ; Bertuzzo, Jose Eduardo ; Koeppe, Jim
Author_Institution :
Dept. of Hardware, Eldorado Res. Inst., Campinas, Brazil
Abstract :
This paper presents the design, measurement methodology and results of a dipole antenna for a RFID tag compliant to EPC Global Gen2. The impedance of the proposed antenna is match at 915 MHz. The meander-line tag antenna dimensions were optimized and evaluated using the software CST Microwave Studio. S parameters of the fabricated antenna were measured using a two-port VNA. The impedance was computed and comparisons with the simulated values were done. It was observed that erroneous material specifications can cause a significant variation in the impedance results.
Keywords :
S-parameters; dipole antennas; electric impedance measurement; radiofrequency identification; EPC Global Gen2; EPC global compliant RFID tag; RFID tag compliant; S parameters; design; dipole antenna; fabricated antenna measurement; frequency 915 MHz; impedance measurement; material specifications; meander-line tag antenna dimensions; measurement methodology; software CST Microwave Studio; two-port VNA; Antenna measurements; Dipole antennas; Impedance; Impedance measurement; Ports (Computers); Radiofrequency identification;
Conference_Titel :
Microwave & Optoelectronics Conference (IMOC), 2013 SBMO/IEEE MTT-S International
Conference_Location :
Rio de Janeiro
DOI :
10.1109/IMOC.2013.6646483
