公开(公告)号：US5684491A

公开(公告)日：1997-11-04

申请号：US379820

申请日：1995-01-27

申请人： Edward M. Newman ,  Alfred R. Lopez ,  Gary A. Schay ,  John F. Pedersen

发明人： Edward M. Newman ,  Alfred R. Lopez ,  Gary A. Schay ,  John F. Pedersen

IPC分类号： H01Q3/26 ,  H01Q3/24 ,  H01Q21/28 ,  H01Q25/00 ,  H04B7/04 ,  H04B7/10 ,  H04B7/26 ,  H04W16/24 ,  H04W16/28 ,  H01Q3/02 ,  H01Q3/12

CPC分类号： H04W16/28 ,  H01Q25/00 ,  H01Q3/24 ,  H04B7/0408 ,  H04B7/0491 ,  H04W16/24

摘要： In a cellular type communication system a sector antenna 12 provides coverage of a sector with a relatively low receive gain. A multi-beam antenna 20 covers the same sector with a plurality of narrower beams 21', 22', 23' and 24' providing higher gain. A multi-beam antenna system 10 provides higher gain operation by selecting the one of the narrower beams 21', 22', 23' or 24' currently providing best reception of a signal transmitted by a user and coupling that selected beam to a system receiver 18. Beam selection is accomplished by sequentially coupling each narrow beam to a microprocessor based control unit 40 and storing samples of user signals as received in each narrow beam on a continuing repetitive basis. The stored samples are then analyzed in order to select the beam currently providing best reception. If, based on analysis of subsequent samples, a different one of beams 21', 22', 23' or 24' provides best reception (because of user movement or changing transmission conditions) that different beam is coupled to the system receiver 18. Spaced diversity reception is achieved by providing a second multi-beam antenna 20a and enabling the system receiver 18 to choose either of two, or both, inputs. Fail/safe operation is provided by coupling the sector antenna 12 to the system receiver 18 in the absence of coupling of a superior narrow beam signal.

摘要翻译： 在蜂窝式通信系统中，扇区天线12提供具有较低接收增益的扇区的覆盖。 多波束天线20用提供更高增益的多个较窄波束21'，22'，23'和24'覆盖相同的扇区。 多波束天线系统10通过选择目前提供由用户发送的信号的最佳接收的较窄波束21'，22'，23'或24'中的一个来提供更高的增益操作，并将该选择的波束耦合到系统接收机 光束选择通过将每个窄光束顺序地耦合到基于微处理器的控制单元40并且以连续重复的方式存储在每个窄光束中接收的用户信号的样本来实现。 然后分析存储的样本以选择当前提供最佳接收的波束。 如果根据后续采样的分析，不同的光束21'，22'，23'或24'提供了不同光束耦合到系统接收器18的最佳接收（因为用户移动或改变传输条件）。间隔 通过提供第二多波束天线20a并且使系统接收机18能够选择两个或两个输入中的任一个来实现分集接收。 通过在不存在上级窄波束信号的耦合的情况下将扇形天线12耦合到系统接收器18来提供故障/安全操作。

公开(公告)号：US5907816A

公开(公告)日：1999-05-25

申请号：US881263

申请日：1997-06-24

申请人： Edward M. Newman ,  Alfred R. Lopez ,  Gary A. Schay ,  John F. Pedersen

发明人： Edward M. Newman ,  Alfred R. Lopez ,  Gary A. Schay ,  John F. Pedersen

IPC分类号： H01Q3/26 ,  H01Q3/24 ,  H01Q21/28 ,  H01Q25/00 ,  H04B7/04 ,  H04B7/10 ,  H04B7/26 ,  H04W16/24 ,  H04W16/28 ,  H04B1/16

CPC分类号： H04W16/28 ,  H01Q25/00 ,  H01Q3/24 ,  H04B7/0408 ,  H04B7/0491 ,  H04W16/24

摘要： In a cellular type communication system a sector antenna 12 provides coverage of a sector with a relatively low receive gain. A multi-beam antenna 20 covers the same sector with a plurality of narrower beams 21', 22', 23' and 24' providing higher gain. A multi-beam antenna system 10 provides higher gain operation by selecting the one of the narrower beams 21', 22', 23' or 24' currently providing best reception of a signal transmitted by a user and coupling that selected beam to a system receiver 18. Beam selection is accomplished by sequentially coupling each narrow beam to a microprocessor based control unit 40 and storing samples of user signals as received in each narrow beam on a continuing repetitive basis. The stored samples are then analyzed in order to select the beam currently providing best reception.

摘要翻译： 在蜂窝式通信系统中，扇区天线12提供具有较低接收增益的扇区的覆盖。 多波束天线20用提供更高增益的多个较窄波束21'，22'，23'和24'覆盖相同的扇区。 多波束天线系统10通过选择目前提供由用户发送的信号的最佳接收的较窄波束21'，22'，23'或24'中的一个来提供更高的增益操作，并将该选择的波束耦合到系统接收机 光束选择通过将每个窄光束顺序地耦合到基于微处理器的控制单元40并且以连续重复的方式存储在每个窄光束中接收的用户信号的样本来实现。 然后分析存储的样本以选择当前提供最佳接收的波束。

公开(公告)号：US5872544A

公开(公告)日：1999-02-16

申请号：US794705

申请日：1997-02-04

申请人： Gary A. Schay

发明人： Gary A. Schay

IPC分类号： H01Q1/24 ,  H01Q13/10 ,  H01Q19/10 ,  H01Q21/10 ,  H01Q21/12 ,  H01Q21/29 ,  H01Q21/24

CPC分类号： H01Q21/29 ,  H01Q1/246 ,  H01Q13/10 ,  H01Q19/104 ,  H01Q21/10 ,  H01Q21/12 ,  H01Q21/293

摘要： A 90 degree azimuth beamwidth is achieved in a narrow cellular antenna, by inclusion of sidewalls. To improve front-to-back performance, slot radiating elements extending through the sidewalls re-radiate signals behind the antenna. Signals re-radiated from the slot elements are effective to partially cancel signals otherwise radiated behind the antenna as a result of diffraction. H-shaped slots are described for sidewall use and side-to-side slots are described for endwall use. Slots may be dielectrically loaded by contiguous portions of a radome.

摘要翻译： 通过包含侧壁，在窄的蜂窝天线中实现90度方位角波束宽度。 为了提高前后性能，延伸穿过侧壁的槽辐射元件重新辐射天线后面的信号。 从时隙元件重新辐射的信号有效地部分地消除由于衍射而在天线之后辐射的信号。 描述了用于侧壁使用的H形槽，并且针对端壁使用描述了侧对侧槽。 插槽可以由雷达罩的连续部分介电地加载。