Title :
U-shaped slot-array antenna for RFID shelf in the UHF
Author :
Choi, Wonkyu ; Bae, Ji-Hoon ; Chae, Jong-Suk ; Park, Chan-Won
Author_Institution :
RFID/USN Res. Group, Electron. & Telecommun. Res. Inst. (ETRI), Daejeon, South Korea
Abstract :
This paper presents a linearly polarized slot-array antenna that consists of slots series-fed by a microstrip line for RFID shelf applications in the UHF band in which the end of the line is shorted to the ground plane by the via-hole. The radiating element of the antenna is the U-shaped slot fed by the travelling and standing current wave formed on the microstrip line left shorted-end. The gain of the designed 3×6 slot-array antenna is about 4dBi and the fractional return-loss bandwidth of less than -10dB about 5.5% at 920MHz.
Keywords :
UHF antennas; antenna feeds; radiofrequency identification; slot antenna arrays; RFID shelf; UHF band; frequency 920 MHz; linearly polarized slot-array antenna; microstrip line; series-fed antenna; u-shaped slot-array antenna; Antenna arrays; Microstrip; Microstrip antennas; Radiofrequency identification; Slot antennas; UHF antennas; RFID; array antenna; reader antenna;
Conference_Titel :
Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on
Conference_Location :
Spokane, WA
Print_ISBN :
978-1-4244-9562-7
DOI :
10.1109/APS.2011.5996566
