宽带双脊喇叭天线的设计与分析

摘要

As an important form of wide-band antenna, the ridged horn has been widely used in radar engineering. Based on ansoft HFSS software simulation technique, the paper suggests a method design of the wide-band ridged horn,which is composed of three parts：the design of co axial-ridged waveguide conversion,horn,and calculation of ridged curve. It gets some ideal result using Ansoft electromagnetic simulation software. The test results show that the antenna matches well in the frequency between ten OHz to twenty GHz.%加脊喇叭作为宽带天线的一种重要形式在雷达工程上的应用已愈来愈广泛。结合Ansoft HFSS软件仿真技术,给出了一种宽带加脊喇叭设计方法,把加脊喇叭天线的设计分解成简单的三个部分来进行,即同轴脊波导变换部分、喇叭部分、脊曲线的求解部分。运用Ansoft电磁场仿真软件进行优化,得到较理想的结果。实测结果表明,这种天线在（10~20）GHz的带宽内匹配良好。