摘要
简要介绍了比幅测向基本原理，并分析目前2种交叉波束的形成方法；结合2种交叉波束形成方法的优缺点，提出了一种适合宽频带比幅测向且用移相器和3dB定向耦合器移相来形成交叉波束的方法；根据工作中心频率设计天线间距和移相器移相大小，并利用3dB定向耦合器将交叉波束的交叉点保持在某个固定电平附近；同时对其进行仿真分析，取得良好的效果。
The paper introduces the fundamental principle of direction finding with amplitude comparison and analyses two ways of forming cross beam. Considering the relative merits of the two kinds of methods, the paper presents a new way to form cross beam with phaser and 3dB directional coupler which is suitable for broad band fit in with direction finding with amplitude .comparison. The method＂ keeps the junction of cross beam at near a fixed electric level using 3dB directional coupler and by designing the antennae spacing and phaser phaseshift according to working center frequency. A simulation analysis has been carried out and has got good result.
出处
《装备指挥技术学院学报》
2007年第6期65-68,共4页
Journal of the Academy of Equipment Command & Technology
基金
国家高技术发展计划资助项目
关键词
比幅测向
交叉波束
移相器
定向耦合器
direction finding with amplitude comparison
cross beam
phaser
directional coupler
