Title :
Design of RFID tag antenna using an U-shaped tuning stub
Author :
Hua-Ming Chen ; Horng-Dean Chen ; Chien-Hung Chen ; Jin-Sen Chen
Author_Institution :
Inst. of Photonics & Commun., Nat. Kaohsiung Univ. of Appl. Sci., Kaohsiung, Taiwan
Abstract :
An UHF RFID tag antenna which is comprised of a U-shaped tuning stub and a dipole radiator for different permittivity surfaces is investigated, fabricated and measured. For a conjugate match to the NXP G2XM chip impedance of 29-j137 at 915 MHz, a dipole tag antenna (91 mm × 10 mm) with U-shaped stub connected to dipole arms was designed. Simple size adjustments of the U-shaped tuning stub and dipole radiator of the antenna allow for easy control of the antenna resistance and inductive reactance, from which the chip impedance requirement may be readily satisfied.
Keywords :
UHF antennas; dipole antennas; electric impedance; electric reactance; electric resistance; permittivity; radiofrequency identification; tuning; NXP G2XM chip impedance; U-shaped tuning stub; UHF RFID tag antenna; antenna resistance; dipole radiator; dipole tag antenna; inductive reactance; permittivity; Antenna measurements; Dipole antennas; Impedance; Permittivity; Radiofrequency identification; UHF antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-5315-1
DOI :
10.1109/APS.2013.6711529
