论文部分内容阅读
提出了一种基于遗传算法的超宽带天线的自动设计方法,并利用此方法设计了一种紧凑型共面波导馈电超宽带天线。所设计的天线采用印刷电路板上的共面波导(CPW)进行馈电,利用遗传算法对天线的贴片形状轮廓进行自动化设计和优化,最后得到一种新颖的UWB印刷缝隙天线。天线尺寸为32mm×32mm×0.787mm。仿真结果和实验结果表现出良好的一致性。实验结果表明,该天线在2.89~12.6GHz的频段内电压驻波比小于2,在整个UWB工作频段范围内有稳定的增益和良好的辐射方向特性。
An automatic design method of UWB antenna based on genetic algorithm is proposed. A compact CPW antenna with UWB antenna is designed by this method. The designed antenna is fed by coplanar waveguide (CPW) on the printed circuit board, and the antenna shape design is optimized by genetic algorithm. Finally, a novel UWB slot antenna is obtained. The antenna size is 32mm × 32mm × 0.787mm. The simulation results and experimental results show good consistency. The experimental results show that the VSWR of the antenna in the frequency range 2.89 ~ 12.6GHz is less than 2, and has stable gain and good radiation direction characteristics in the entire UWB operating frequency range.