基于无线温度传感器的多频段单极子天线设计

Design of a multi-band monopole antenna for wireless temperature sensor

基于单极子天线的原理,文章利用HFSS高频仿真软件设计了一种应用于无线温度传感器的多频段单极子天线。该天线由2个辐射臂组成,在回波损耗小于-6 dB时形成了DCS1800(1710~1880 MHz)、PCS1900(1850~1990 MHz)等频段,且对应谐振频率的方向性良好。对天线实物分别进行的无源和有源测试结果表明,DCS1800、PCS1900等频段的阻抗匹配性能和发射、接收性能良好,在无线温度传感器上具有良好的应用前景。

Based on the principle of a monopole antenna,a multi-band monopole antenna for wireless temperature sensor is designed using HFSS high-frequency simulation software.The antenna consists of two radiating arms.When the return loss is less than-6 dB,there were DCS1800(17101880 MHz),PCS1900(18501990 MHz)and other frequency bands,the directivity of the corresponding resonance frequency is good.In addition,the passive and active tests were performed on the antenna,and the results show that the impedance matching performance and emission,receiving performance of DCS1800,PCS1900 and other frequency bands are good,which has certain practical value in wireless temperature sensor application.