Title :
Antenna with wide beamwidth and high return loss for UHF RFID reader
Author :
Son, H.-W. ; Park, H. ; Cho, J.-H. ; Lee, K.-H. ; Jin, G.-J. ; Oh, M.-K.
Author_Institution :
Div. of Electron. & Inf. Eng., Chonbuk Nat. Univ., Jeonju, South Korea
Abstract :
A circularly polarized antenna with a wide beamwidth and high return loss is presented. The antenna consists of four U-shaped metal strips sequentially rotated and fed with a 90° phase difference. The antenna is designed for UHF RFID applications, and the experimental results show that it has a wide beamwidth of over 114° at 915 MHz and high return loss of over 34 dB in the 902-928 MHz range.
Keywords :
UHF antennas; antenna radiation patterns; polarisation; radiofrequency identification; U- shaped metal strip; UHF RFID reader; bandwidth 902 MHz to 928 MHz; beamwidth; circularly polarized antenna; frequency 915 MHz; loss 34 dB; return loss; Antenna measurements; Antenna radiation patterns; Feeds; Metals; Probes; Radiofrequency identification;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6349200
