共形于圆柱载体的串联阵列天线性能研究

摘要

In this paper,a novel conformal antenna array for cylindrical structure is proposed.By em-ploying the method of coplanar waveguide (CPW)series-fed,a wide bandwidth is realized.Then,based on that the effect of cylindrical carrier on the performance of the conformal antenna array is studied.The results show that the -10 dB bandwidth of the conformal antenna array without cylindrical carrier is from 2.1 GHz to 3.45 GHz (the relative bandwidth is 48.6 %).The maximum gain reaches 5.4 dBi. when the antenna array is conformal in cylindrical tube with different relative dieletric constant(εr= 1~8),different thickness (0~12 mm),it can still meet the bandwidth demand of from 2.4 GHz to 2.48 GHz wireless local area network(WLAN).And the usage requirement of currently complex wire-less communication equipment,also,it can work under the environment temperature from -60 ℃ to 100 ℃.%本文提出一种新型的可共形于圆柱载体的阵列天线.采用共面波导(CPW)串联馈电的方法实现了较宽的工作带宽.在此基础上，研究了圆柱形载体对该共形阵列天线性能的影响.结果表明：没有载体时，共形阵列天线的-10 dB带宽为2.1~3.45 GHz(相对工作带宽48.6%)，最大增益为5.4 dBi.加载相对介电常数介于1~8之间、厚度介于0~12 mm之间的柱形圆管载体后，该共形阵列天线依然满足覆盖无线局域网(WLAN)2.4~2.48 GHz的带宽要求，并且可以在-60℃~100℃的环境温度下工作，满足目前复杂的无线通信设备的使用需求.