【摘要】 本文利用空间谐波法导出了小张角环加载波纹圆锥喇叭中表面波的传播方程，利用数值方法求解该方程，并分析了表面波在喇叭内的传播及辐射特性。数值计算结果与实测值吻合一致。结果表明，喇叭内激励的表面波主要影响喇叭的Ｅ面辐射场和交叉极化辐射场。更多还原

【Abstract】 The propagation equation for surface wave excitated along corrugated horns with ringload slots derived by using the space harmonic technique. The propagation and radiation characteristics for surface wave along corrugated horns with ring-load slots have been investigated. The measured characteristics agree well with the theory.The results show the surface wave excitated in the horn has influences mainly on the crosspolarization and E-plane radiation field. A theoretical basis and practical example is provided for designing corrugated horns with ring-load slots with better performancies .更多还原