毫米波Rotman透镜天线的计算机仿真设计

摘要

A millimeter-wave Rotman lens multibeam antenna with opetating frequency 37GHz and 7 beams is designed in this paper. The choices of Rotman lens focal length are analyzed to achieve the minimum phase errors. Rotman lens and antenna array are realized with microstrip and simulated together. Simulations show that this antenna can achieve multibeam and wide-angle scanning.%设计了一个频率在37 GHz的7波束毫米波Rotman透镜多波束天线.分析了透镜焦距的选择方法,以实现最小的相位误差.Rotman透镜采用微带形式实现,天线单元采用微带贴片天线,并实现了Rotman透镜与天线阵列的整体仿真.结果表明,该天线可以实现多波束宽角度的扫描特性.