公开(公告)号：US6081234A

公开(公告)日：2000-06-27

申请号：US891631

申请日：1997-07-11

申请人： John Huang ,  Ronald J. Pogorzelski

发明人： John Huang ,  Ronald J. Pogorzelski

IPC分类号： H01Q3/14 ,  H01Q3/46 ,  H01Q19/06

CPC分类号： H01Q3/14 ,  H01Q19/06 ,  H01Q3/46

摘要： A novel means of scanning a circularly polarized reflectarray antenna. The reflectarray is an array of metallic elements arranged on a surface designed to compensate for the various path lengths of the optical rays from an illuminating feed to the reflecting surface and then to the antenna aperture. With appropriate design, the phase in the aperture can be made to vary linearly in any desired direction and also to produce a radiated beam normal to the constant phase surface. In the case of circular polarization, this path length compensation can be accomplished by rotation of the individual elements.

摘要翻译： 扫描圆偏振反射阵列天线的新颖手段。 反射阵列是布置在表面上的金属元件阵列，设计成用于补偿从照明馈送到反射表面然后到天线孔径的光线的各种路径长度。 通过适当的设计，可以使孔径中的相位在任何所需方向上线性变化，并且还产生垂直于恒定相面的辐射光束。 在圆极化的情况下，可以通过各个元件的旋转来实现该路径长度补偿。