公开(公告)号：US06448938B1

公开(公告)日：2002-09-10

申请号：US09879807

申请日：2001-06-12

申请人： Bing Chiang ,  Kenneth M. Gainey ,  James A. Proctor, Jr.

发明人： Bing Chiang ,  Kenneth M. Gainey ,  James A. Proctor, Jr.

IPC分类号： H01Q2160

CPC分类号： H04B7/086 ,  H01Q1/246 ,  H01Q3/26 ,  H01Q5/50 ,  H01Q21/0018 ,  H01Q25/00 ,  H04B7/0617

摘要： A phased array antenna provides a subscriber unit with an ability to transmit and receive signals in different directions to allow for optimum gain in both directions, simultaneously. In this way, refraction and multipath effects resulting from communication signals operating at different frequencies can be compensated for to improve gain in both the forward and reverse links. Frequency selective components are coupled to respective antenna elements. At least two weighting structures are coupled to the frequency selective components to produce independently steerable beams having spectrally separated signals. The weighting structures may include phase shifting elements to steer the beams independently and include at least one variable gain amplifying component to independently amplify the signals received by or transmitted by the respective antenna, thereby optimizing the respective shapes of the beams. By having independently steerable and shapable beams, the directive antenna is attractive for use in a multi-band and/or multipath environment, same frequency or spread spectrum network.

摘要翻译： 相控阵天线为用户单元提供了在不同方向发送和接收信号的能力，以同时实现两个方向的最佳增益。 以这种方式，可以补偿由在不同频率操作的通信信号产生的折射和多径效应，以改善正向和反向链路中的增益。 频率选择分量耦合到相应的天线元件。 至少两个加权结构耦合到频率选择分量以产生具有频谱分离信号的独立可控的波束。 加权结构可以包括相移元件以独立地引导光束，并且包括至少一个可变增益放大分量以独立地放大由相应天线接收或发射的信号，从而优化波束的相应形状。 通过具有独立的可导向和可成形的光束，指令天线对于在多频带和/或多径环境，相同频率或扩频网络中使用是有吸引力的。