滤波器是邻频频道合成器的关键部件之一,而耦合问题又是滤波器设计的关键.本文论述了TE111双模圆柱腔椭圆函数滤波器中应用的简并腔模及腔间与端面的耦合设计.文中巧妙地使用调谐螺钉和耦合螺钉,解决了双模圆柱腔椭圆函数滤波器中应用的简并腔模及腔间与端面的耦合设计问题,最后给出了该方法设计出的产品的实测数据.该产品使用效果好,用户满意.

Filter is a key unit of adjacent frequency channel synthesizer and coupling problem is a key point in the design of a filter. In this paper, a coupling design problem of simple shunt cavity modes as well as cavity and end face, which are used in a TE 111 double mode cylindrical cavity elliptical function filter, is described and overcome by using tuned screws and coupling screws. Finally, actual measured data of the products designed using this method are given and customers are satisfied with this product.

TN713