本文从工作原理上和设计尺寸上,辨别了在圆波导口端平面附近的平面上,开挖环形槽的90°波纹喇叭、同轴多模馈源和法兰盘扼流槽喇叭的相同处和不同处。介绍了它们的性能并给出了方向图波纹宽度公式,重点是90°波纹圆喇叭。从工程设计角度出发,将形形色色的90°波纹圆喇叭分为“复合式”的、“纯”的、“退后式”的和“组槽”的,共四类来进行考察。 In this paper, from the working principle and the design dimension, we distinguish the 90 ° ripple horn, the coaxial multimode feed and the flange of the choke horn at the same plane in the vicinity of the plane of the end face of the circular waveguide. And different place. Their properties are presented and the waviness width of the pattern is given, with a focus on a 90 ° ripple circular horn. From the engineering design point of view, all kinds of 90 ° ripple circular speakers are divided into “compound”, “pure”, “back” and “group slot” for a total of four kinds of inspection.