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A Novel Antenna with a Feed Networks for RFID Reader at Ultra High Frequency

机译:一种具有馈电网络的新型天线,用于超高频RFID读取器

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摘要

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.
机译:介绍了天线和馈电网络,以供读者识别在840 MHz-845 MHz和920 MHz-925 MHz的超高频下用于中国的RFID射频识别。天线由正交放置在接地平面上的两个双L天线组成。引入用于获得天线圆极化特性的馈电网络,以分别控制每个双L天线的水平和垂直辐射电流。该天线还可以应用于ISO / IEC建议用于RFID的860 MHz-960 MHz超高频率。进行了仿真和测量,并获得了回波损耗小于-10dB的所需频带。

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