Title :
Simulated results for single layer dual mode antennas for UHF RFID tag using open stubs
Author :
Worasawate, D. ; Pechsuwan, Sittikit
Author_Institution :
Dept. of Electr. Eng., Kasetsart Univ., Bangkok, Thailand
Abstract :
This paper proposes a single layer structure of a tag antenna for UHF RFID. The antenna can be used in both metallic and non-metallic surfaces. The antenna operates as a microstrip antenna when it is attached to a metallic surface and operates as a dipole antenna when it is attached to a non-metallic surface. The antenna is designed on Teflon substrate with the thickness of 1.52 mm to match NXP UCODE G2XL. The RFID-chip impedance is a resistor of 1385 ohm in parallel with a capacitor of 1.16 pF. This gives the impedance of 16-j147 ohm at 922.5 MHz. The simulated antenna impedance and reading range of the antenna are reported.
Keywords :
UHF antennas; capacitors; dipole antennas; electric impedance; microstrip antennas; radiofrequency identification; resistors; NXP UCODE G2XL; RFID-chip impedance; UHF RFID tag antenna; capacitance 1.16 pF; capacitor; dipole antenna impedance; frequency 922.5 MHz; metallic surface; microstrip antenna; nonmetallic surface; open stub; resistance 1385 ohm; resistor; single layer dual mode antenna; size 1.52 mm; teflon substrate; Admittance; Dipole antennas; Impedance; Microstrip; Microstrip antennas; Radiofrequency identification; UHF RFID; dipole antenna; dual mode antenna; microstrip antenna; passive RFID;
Conference_Titel :
Communications and Information Technologies (ISCIT), 2013 13th International Symposium on
Conference_Location :
Surat Thani
Print_ISBN :
978-1-4673-5578-0
DOI :
10.1109/ISCIT.2013.6645827
