A Novel Antenna with a Feed Networks for RFID Reader at Ultra High Frequency
The antenna and feed networks are presented for reader applications of radio frequency identification at ultra high frequency of 840 MHz-845 MHz and 920 MHz-925 MHz that is allocated for RFID use in China. The antenna is composed of two dual-L antennas orthogonally placed on a ground plane. The feed networks which are used to attain circular polarization characteristics of the antenna are introduced to control horizontal and vertical radiation current flows for each dual-L antenna respectively. The antenna can also be applied to ultra high frequency of 860 MHz-960 MHz that is proposed for RFID use by ISO/IEC. The simulation and measurement were performed and the desired frequency bands with a return loss less than -10dB were achieved.
planar inverted “F antenna (PIFA) dual-L antenna radio-frequency identification (RFID) circular polarization ultra high frequency (UHF) the finite-difference time-domain (FDTD)
Min Yi Shufang Li Hongjie Liu Weijun Hong
Key Laboratory of Universal Wireless Communication,Ministry of Education Beijing University of Posts and Telecommunications,BUPT Beijing,China
国际会议
广州
英文
2008-11-19（万方平台首次上网日期，不代表论文的发表时间）