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为了更好地分析小型卡塞格仑天线的方向图及其馈源的辐射图,需要对波纹喇叭相心的位置作一测定。对于卡氏天线来说,喇叭相心位置的确定是极其重要的,关系到天线系统的精确设计和合理安装,天线系统取得优异性能,相心的测定是必不可少的。我们利用手头现有的微波测试元件及转台进行了这项工作。本文叙述的方法虽对于波纹喇叭的相心而言,但也适用于其它等相面为球面波的无线电天线。
In order to better analyze the pattern of the small Cassegrain antenna and the radiation pattern of its feed, a determination of the position of the corrugated horn is required. For the card’s antenna, the location of the horn phase heart is extremely important, related to the precise design of the antenna system and reasonable installation, antenna system achieved excellent performance, in-line determination is essential. We did this with the existing microwave test components and turntables on hand. Although the method described in this paper is in accord with the ripple horn, it is also applicable to other radio antennas with spherical waves such as the equivalent surface.