公开(公告)号：US5025493A

公开(公告)日：1991-06-18

申请号：US360823

申请日：1989-06-02

Applicant: James Cook, Jr.

Inventor： James Cook, Jr.

IPC: H01Q3/24 ,  H01Q21/29 ,  H01Q25/02

CPC classification number: H01Q25/02 ,  H01Q21/29 ,  H01Q3/24

Abstract: A multi-element antenna feed method and system which has superior side lobe characteristics over previous electronically scanned beam approaches is provided. A multi-element antenna feed system generally comprises a multi-element antenna, an antenna array processor, a receiver, a signal processor for automatic tracking of targets, and an antenna steering control mechanism. The multi-element antenna may comprise alternate configurations and the antenna array processor is coupled to the multi-element antenna. The antenna array processor particularly comprises a diode switching array for combining at least one output of the elements of the multi-element antenna with at least one other output of the multi-element antenna switchably selected via the diode switching array. The method allows control of the antenna system side lobes in both the scanned offset beam plane and the orthogonal plane by an amplitude weighted combination of the selected element beams. This results in an improved capability to reduce crosstalk betwen two orthogonal tracking channels, offset beam control versus frequency, and a wide frequency bandwidth.

Abstract translation: 提供了一种多元天线馈电方法和系统，其具有比先前的电子扫描光束方法更好的旁瓣特性。 多元件天线馈送系统通常包括多元件天线，天线阵列处理器，接收器，用于自动跟踪目标的信号处理器，以及天线转向控制机构。 多元天线可以包括替代配置，天线阵列处理器耦合到多元天线。 天线阵列处理器特别地包括二极管开关阵列，用于将多单元天线的元件的至少一个输出与通过二极管开关阵列切换选择的多元件天线的至少一个其它输出组合。 该方法允许通过所选元件波束的幅度加权组合来控制扫描的偏移波束平面和正交平面中的天线系统侧波瓣。 这导致改进的能力，以减少两个正交跟踪通道之间的串扰，偏移波束控制与频率以及宽频带宽度。