赋形波束共形天线口径综合与方向图分析

摘要

In order to meet the special requirement of conformal antenna array,a novel shaped⁃beam aperture synthetic method of conformal antenna is proposed,the corresponding calculation and optimization results are provided.The Woodward and Chebyshev linear array synthetic methods are employed to obtain the planar array distribution,which is projected to the cylinder conformal array to achieve the required aperture distribution.The phase and amplitude errors are induced in the antenna elements,and the fabrication and experi⁃ment techniques are considered for error correction,which is valuable for antenna engineering design.The simulated radiation pattern indicates that the proposed method can be applied in shaped⁃beam and low sidelobe conformal aperture array.%针对工程领域对共形阵列天线波束的要求日渐特殊，给出了一种赋形波束共形天线口径的综合方法，以及相应的数值计算和优化结果。在直线阵的基础上结合Woodward综合理论和切比雪夫综合理论，并把综合结果通过投影口径综合法运用到柱面共形阵。将幅度与相位的误差引入各个天线单元通道中，同时考虑到现有加工试验手段对误差的修正，突出了本方法对天线工程设计的指导意义。仿真结果表明，用该方法可以综合常用波束形状和较低副瓣的共形天线口径。