电感耦合馈电偶极子标签天线阻抗调试分析  

Debugging Analysis on Impedance of Inductance Coupled Feeding Dipole Tag Antenna

作　　者：杨跃胜[1] 武岳山[1,2] 

机构地区：[1]深圳市远望谷信息技术股份有限公司,广东深圳518057 [2]西北大学信息科学与技术学院,陕西西安710127

出　　处：《移动通信》2017年第18期80-84,共5页Mobile Communications

摘　　要：结合电感耦合馈电偶极子标签天线模型,在理论上分析了该类型天线阻抗实部和虚部的调节方法,同时依据终端短路的射频传输线理论,分析了电感耦合环的近似长度值,利用HFSS仿真软件对天线模型进行仿真测试,使该天线阻抗调试理论方法得到充分验证。结合I^2C芯片主从测试多天线PCB板的需求,设计了一款宽频带电感耦合馈电偶极子标签天线,通过实际测试,任意一个标签读取距离超过2m,满足I^2C芯片主从测试的需求。In the light of the model of inductance coupled deeding dipole tag antenna, the adjustment method of the real part and imaginary part of this type of antenna impedance was analyzed. Based on the RF transmission line theory of terminal short circuit, the approximate length of inductance coupled loop was investigated. The antenna model was simulated and tested by means of HFSS software to sufficiently validate the impedance debugging theory and method of the antenna. According to the requirement of master-slave testing multi-antenna PCB of I2C chip, a broadband inductance coupled feeding dipole tag antenna was designed. The practical tests demonstrate that the reading distance of all of tags exceeds 2 m to meet the requirement of master-slave testing of I2C chip.

关 键 词：电感耦合 耦合馈电 偶极子 阻抗 电子标签 

分 类 号：TN929.5[电子电信—通信与信息系统]