Title :
Printed square quadrifilar spiral antenna for UHF RFID reader
Author :
Son, W.I. ; Lim, W.G. ; Lee, M.Q. ; Min, S.B. ; Yu, J.W.
Author_Institution :
Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon
Abstract :
This paper proposes the printed square quadrifilar spiral antenna (QSA) for mobile RFID reader. A folded inverted-F antenna structure is used as a spiral to increase the impedance of QSA. Results show that the array antenna has obtained a sharp 3 dB beamwidth, high gain and good axial ratio.
Keywords :
UHF antennas; antenna arrays; microstrip antennas; mobile antennas; radiofrequency identification; QSA impedance; UHF RFID reader; array antenna; folded inverted-F antenna structure; mobile RFID reader; printed square antenna; quadrifilar spiral antenna; Antenna arrays; Antenna measurements; Antennas and propagation; Electromagnetic wave polarization; Impedance; Mobile antennas; Radiofrequency identification; Satellite antennas; Spirals; UHF antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2007 IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-0877-1
Electronic_ISBN :
978-1-4244-0878-8
DOI :
10.1109/APS.2007.4395491
