Title :
PIFA antenna with tilted circular polarization angle for RFID readers
Author :
Pflaum, S. ; Canneva, Florian ; Le Thuc, Philippe ; Kossiavas, G. ; Staraj, Robert
Author_Institution :
Lab. of Electron., Antennas & Telecommun. (L.E.A.T), Univ. of Nice Sophia-Antipolis, Sophia Antipolis, France
Abstract :
In this paper, a miniaturized circularly polarized (CP) antenna for RFID readers is presented. This structure, made up of two crossed PIFA has been designed to operate in the European RFID UHF band [0.865-0.868 GHz]. Thanks to two shorts circuits, miniaturization and CP are achieved with only one feed. By optimizing the different parameters of the structure, CP direction can be also tilted in a desired angle. The simulated impedance matching and axial ratio bandwidths are 4% and 16%, respectively. The realized gain is 1.85 dBi at 0.866 GHz. The overall dimensions of the structure are 0.5λ0 × 0.5λ0 × 0.06λ0.
Keywords :
UHF antennas; planar inverted-F antennas; radiofrequency identification; European RFID UHF band; PIFA antenna; RFID reader; circularly polarized antenna; frequency 0.865 GHz to 0.868 GHz; impedance matching; miniaturized antenna; tilted circular polarization angle; Antenna measurements; Gain; Microstrip antenna arrays; Polarization; Radiofrequency identification;
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.2013.6711526
