Title :
Broadband single-fed single-patch circularly polarized antenna for UHF RFID applications
Author :
Kwa, Hao Wei ; Qing, Xianming ; Chen, Zhi Ning
Author_Institution :
Nat. Univ. of Singapore, Singapore
Abstract :
A broadband single-fed single-patch circularly polarized antenna for UHF RFID application has been presented in this paper. The simulated and measured results have shown desirable performance with the gain of Gt7 dBic, VSWR of Lt2, and AR of Lt3 dB within the frequency range of 0.84-0.935 GHz (10.7%). The antenna is also low cost due to the simple structure and no use of any dielectric substrate. Due to the broadband performance covering most of the UHF RFID band, this proposed antenna can be considered a versatile reader antenna considering its relatively good performance and low cost.
Keywords :
UHF antennas; antenna feeds; broadband antennas; electromagnetic wave polarisation; microstrip antennas; radiofrequency identification; UHF RFID application; broadband single-fed single-patch circularly polarized antenna; dielectric substrate; frequency 0.84 GHz to 0.935 GHz; versatile reader antenna; Antenna measurements; Broadband antennas; Costs; Dielectric measurements; Frequency measurement; Gain measurement; Polarization; Radiofrequency identification; UHF antennas; UHF measurements;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2041-4
Electronic_ISBN :
978-1-4244-2042-1
DOI :
10.1109/APS.2008.4619871
