Title :
Novel circular polarization antenna for a UHF bandwidth RFID reader
Author :
Chun, Jong-Hun ; Sanguk, Shin ; Youngeun, An ; Seo, Jang-Weon ; Park, Jongan
Author_Institution :
Dept. of Silver Care Welfare, Jeonnam Provincial Coll., South Korea
Abstract :
This study designed a new circular polarization wave that separates original signals into two signals with phase difference of 90deg using hybrid coupler with 0.16 dB insert loss and phase difference of 90deg and provides them for two strip lines with a length of lambda/2 to realize circular polarization wave reader proposed in this study. This study designed a radiation plate with cross section of 13.4 cm times 13.4 cm having two feed points using phase difference of 90deg to improve power efficiency.
Keywords :
UHF antennas; antenna feeds; antenna radiation patterns; electromagnetic coupling; polarisation; radiofrequency identification; waveguide couplers; UHF bandwidth RFID reader; antenna feeds; circular polarization antenna; hybrid coupler insert loss; radiation plate phase difference design; Bandwidth; Directive antennas; Feeds; Insertion loss; Polarization; Radiofrequency identification; Reflection; Reflector antennas; Signal design; UHF antennas; Circular polarization antenna; RFID reader; UHF bandwidth;
Conference_Titel :
Consumer Electronics, 2009. ISCE '09. IEEE 13th International Symposium on
Conference_Location :
Kyoto
Print_ISBN :
978-1-4244-2975-2
Electronic_ISBN :
978-1-4244-2976-9
DOI :
10.1109/ISCE.2009.5156892
