Title :
Double loop matching technique for robust UHF RFID tag antennas
Author :
Heino, Mikko ; Toivanen, Jalmari ; Holopainen, J. ; Viikari, Ville
Author_Institution :
Dept. of Radio Sci. & Eng., Aalto Univ., Espoo, Finland
Abstract :
This paper presents a double resonance UHF RFID antenna suitable for most capacitive chips. The antenna incorporates two inductive loops that facilitate broadband matching. The paper studies how different dimensions in the antenna affect the input impedance. It is shown that the input impedance can be tuned with three structural parameters. The wide impedance bandwidth of the antenna improves the antenna performance when the environment varies making it more robust.
Keywords :
UHF antennas; loop antennas; radiofrequency identification; broadband matching; double loop matching technique; inductive loops; robust UHF RFID tag antennas; wide impedance bandwidth; Antenna measurements; Broadband antennas; Impedance; Permittivity; Radiofrequency identification; Robustness;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6904977
