一种UHF频段RFID手持读写器天线的设计
发布时间：2018-12-13 13:34
【摘要】：通过在辐射贴片和地板上开槽的方法设计了一款适用于UHF频段RFID(radio frequency identification)手持机的小型圆极化天线,并利用有限元仿真软件HFSS13.0对天线的特性进行了仿真验证。结果表明:辐射贴片尺寸为68 mm×68 mm时, 10 dB回波损耗阻抗带宽达49 MHz,在895~945 MHz驻波比小于2,最大增益可达 0.61dB。与传统阅读器天线相比,在使用相同介质且保证更高增益的前提下天线尺寸缩减了20%,最大增益调高了0.39dB。
[Abstract]:A small circularly polarized antenna suitable for UHF band RFID (radio frequency identification) handsets is designed by means of slot on the radiation patch and floor. The characteristics of the antenna are simulated by the finite element simulation software HFSS13.0. The results show that when the size of radiation patch is 68 mm 脳 68 mm, the impedance bandwidth of 10 dB echo is 49 MHz, and the VSWR of 895 dB 945 MHz is less than 2, and the maximum gain can reach 0.61 dB. Compared with the traditional reader antenna, the antenna size is reduced by 20 and the maximum gain is increased by 0.39 dB under the condition of using the same medium and ensuring higher gain.
【作者单位】： 重庆邮电大学光电工程学院;
【基金】：重庆市教委科学技术研究基金资助项目(No.KJ100512) 重庆市自然科学基金资助项目(No.CSTC 2010BB2412) 重庆市大学生创新创业训练计划资助项目(No.201210617010) 重庆邮电大学大学生科研训练计划资助项目
【分类号】：TN821.1;TP391.44
[Abstract]:A small circularly polarized antenna suitable for UHF band RFID (radio frequency identification) handsets is designed by means of slot on the radiation patch and floor. The characteristics of the antenna are simulated by the finite element simulation software HFSS13.0. The results show that when the size of radiation patch is 68 mm 脳 68 mm, the impedance bandwidth of 10 dB echo is 49 MHz, and the VSWR of 895 dB 945 MHz is less than 2, and the maximum gain can reach 0.61 dB. Compared with the traditional reader antenna, the antenna size is reduced by 20 and the maximum gain is increased by 0.39 dB under the condition of using the same medium and ensuring higher gain.
【作者单位】： 重庆邮电大学光电工程学院;
【基金】：重庆市教委科学技术研究基金资助项目(No.KJ100512) 重庆市自然科学基金资助项目(No.CSTC 2010BB2412) 重庆市大学生创新创业训练计划资助项目(No.201210617010) 重庆邮电大学大学生科研训练计划资助项目
【分类号】：TN821.1;TP391.44
【参考文献】
相关期刊论文 前4条
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