基于PCB的三频高回波损耗印制单极子天线

Triple-Band High Return Loss Printed Monopole Antenna Based on PCB

该文设计了一种印制于玻璃纤维环氧树脂基板的单极子天线,天线通过同轴线馈电,借助HFSS 13.0软件仿真可工作于3个频段,中心频率分别为2.45GHz、3.5GHz和5.55GHz,带宽分别约为400MHz、550MHz和800 MHz。在2.45GHz时回波损耗高达45dB。分析了参考地高度H1、辐射单元宽度W和辐射单元长度R2对天线参数S_(11)的影响。通过网络分析仪测量实物与软件仿真结果进行比较,二者基本吻合,具有一定的合理性。

A coaxial-fed monopole antenna printed in glass fiber epoxy resin was designed in this paper.It covers three frequency bands by software HFSS 13.0.And the resonant frequencies were 2.45 GHz、3.5 GHz and5.55 GHz respectively.The bandwidths were 400 MHz、550 MHz and 800 MHz respectively The return loss reached to 45 dB at 2.45 GHz.The influence of height H1,width W and length R2 on the antenna parameter S_(11) have been analyzed.The measured result and the simulation result have been compared by the network analyzer.The two are consistent,and proved the the design has a certain rationality.