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    Electronic phase shifter with enhanced phase shift performance
    1.
    发明授权
    Electronic phase shifter with enhanced phase shift performance 失效

    公开(公告)号：US06992546B2

    公开(公告)日：2006-01-31

    申请号：US11022483

    申请日：2004-12-22

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

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

    IPC: H01P1/18

    CPC classification number: H01P1/185

    Abstract: A varactor based phase shifter that increases phase shift range using a lower characteristic impedance between quadrature ports than is used at its input/output ports. The circuit makes use of a four port coupler arrangement that imbeds a quarter wave impedance transformation between the input port and the quadrature ports as well as between the quadrature ports and the output port. The characteristic impedance across the quadrature ports is therefore less than the characteristic impedance across the input and output ports. In one implementation, reducing a characteristic input/output impedance of 50 to a 20 ohm quadrature port impedance results in a phase shift range increase of more than 50%.

    Low cost multiple pattern antenna for use with multiple receiver systems
    2.
    发明授权
    Low cost multiple pattern antenna for use with multiple receiver systems 失效
    低成本多模式天线，用于多个接收机系统

    公开(公告)号：US06894653B2

    公开(公告)日：2005-05-17

    申请号：US10664413

    申请日：2003-09-17

    Applicant: Bing Chiang ,  Kenneth M. Gainey ,  James A. Proctor, Jr. ,  Antoine J. Rouphael ,  Griffin K. Gothard ,  Michael J. Lynch

    Inventor： Bing Chiang ,  Kenneth M. Gainey ,  James A. Proctor, Jr. ,  Antoine J. Rouphael ,  Griffin K. Gothard ,  Michael J. Lynch

    IPC: H01Q1/22 ,  H01Q3/26 ,  H01Q3/44 ,  H01Q9/16 ,  H01Q19/26 ,  H01Q19/32 ,  H01Q21/06 ,  H01Q21/08 ,  H01Q21/20 ,  H01Q21/29 ,  H01Q3/00

    CPC classification number: H01Q3/2641 ,  H01Q1/22 ,  H01Q1/2258 ,  H01Q9/16 ,  H01Q19/26 ,  H01Q19/32 ,  H01Q21/08 ,  H01Q21/20 ,  H01Q21/29

    Abstract: An antenna assembly includes at least two active or main radiating omni-directional antenna elements arranged with at least one beam control or passive antenna element used as a reflector. The beam control antenna element(s) may have multiple reactance elements that can electrically terminate it to adjust the input or output beam pattern(s) produced by the combination of the active antenna elements and the beam control antenna element(s). More specifically, the beam control antenna element(s) may be coupled to different terminating reactances to change beam characteristics, such as the directivity and angular beamwidth. Processing may be employed to select which terminating reactance to use. Consequently, the radiator pattern of the antenna can be more easily directed towards a specific target receiver/transmitter, reduce signal-to-noise interference levels, and/or increase gain by using Radio Frequency (RF), Intermediate Frequency (IF), or baseband processing. A Multiple-Input, Multiple-Output (MIMO) processing technique may be employed to operate the antenna assembly with simultaneous beam patterns.

    Abstract translation: 天线组件包括至少两个有源或主辐射全向天线元件，其布置有用作反射器的至少一个光束控制或无源天线元件。 波束控制天线元件可以具有多个电抗元件，其可以电气端接它，以调节由有源天线元件和波束控制天线元件的组合产生的输入或输出波束图案。 更具体地，波束控制天线元件可以耦合到不同的终止电抗以改变诸如方向性和角波束宽度的波束特性。 可以使用处理来选择要使用的终止电抗。 因此，通过使用射频（RF），中频（IF）或更高的频率，可以更容易地将天线的辐射器模式引向特定目标接收器/发射器，降低信噪比干扰电平和/或增加增益 基带处理。 可以采用多输入多输出（MIMO）处理技术来操作具有同时波束图案的天线组件。

    Low cost multiple pattern antenna for use with multiple receiver systems
    5.
    发明授权
    Low cost multiple pattern antenna for use with multiple receiver systems 失效
    低成本多模式天线，用于多个接收机系统

    公开(公告)号：US07253783B2

    公开(公告)日：2007-08-07

    申请号：US11101914

    申请日：2005-04-08

    Applicant: Bing Chiang ,  Kenneth M. Gainey ,  James A. Proctor, Jr. ,  Antoine J. Rouphael ,  Griffin K. Gothard ,  Michael J. Lynch

    Inventor： Bing Chiang ,  Kenneth M. Gainey ,  James A. Proctor, Jr. ,  Antoine J. Rouphael ,  Griffin K. Gothard ,  Michael J. Lynch

    IPC: H01Q3/00

    CPC classification number: H01Q3/2641 ,  H01Q1/22 ,  H01Q1/2258 ,  H01Q9/16 ,  H01Q19/26 ,  H01Q19/32 ,  H01Q21/08 ,  H01Q21/20 ,  H01Q21/29

    Abstract: An antenna assembly includes at least two active or main radiating omni-directional antenna elements arranged with at least one beam control or passive antenna element used as a reflector. The beam control antenna element(s) may have multiple reactance elements that can electrically terminate it to adjust the input or output beam pattern(s) produced by the combination of the active antenna elements and the beam control antenna element(s). More specifically, the beam control antenna element(s) may be coupled to different terminating reactances to change beam characteristics, such as the directivity and angular beamwidth. Processing may be employed to select which terminating reactance to use. Consequently, the radiator pattern of the antenna can be more easily directed towards a specific target receiver/transmitter, reduce signal-to-noise interference levels, and/or increase gain. A Multiple-Input, Multiple-Output (MIMO) processing technique may be employed to operate the antenna assembly with simultaneous beam patterns.

    Abstract translation: 天线组件包括至少两个有源或主辐射全向天线元件，其布置有用作反射器的至少一个光束控制或无源天线元件。 波束控制天线元件可以具有多个电抗元件，其可以电气端接它，以调节由有源天线元件和波束控制天线元件的组合产生的输入或输出波束图案。 更具体地，波束控制天线元件可以耦合到不同的终止电抗以改变诸如方向性和角波束宽度的波束特性。 可以使用处理来选择要使用的终止电抗。 因此，天线的辐射器图案可以更容易地指向特定的目标接收器/发射器，降低信噪比干扰电平和/或增加增益。 可以采用多输入多输出（MIMO）处理技术来操作具有同时波束图案的天线组件。

    Adaptive receive and omnidirectional transmit antenna array
    9.
    发明授权
    Adaptive receive and omnidirectional transmit antenna array 失效
    自适应接收和全向发射天线阵列

    公开(公告)号：US07034759B2

    公开(公告)日：2006-04-25

    申请号：US11076607

    申请日：2005-03-10

    Applicant: James A. Proctor, Jr. ,  Bing Chiang

    Inventor： James A. Proctor, Jr. ,  Bing Chiang

    IPC: H01Q21/00

    CPC classification number: H01Q1/243 ,  H01Q1/242 ,  H01Q1/245 ,  H01Q1/38 ,  H01Q1/521 ,  H01Q3/2605 ,  H01Q3/44 ,  H01Q9/30 ,  H01Q9/42 ,  H01Q19/32 ,  H01Q21/24 ,  H01Q25/001 ,  H01Q25/002 ,  H04B7/10

    Abstract: An adaptive antenna used in a receive only mode with a separate omnidirectional transmit antenna. The arrangement is especially effective for small, handheld wireless devices. The transmit antenna maybe integrated with the receive array by utilizing a horizontally polarized transmit and vertically polarized receiver ray. In other embodiments, the transmit antenna may be physically separate and not integrated with the receive array. In either case there is separate receive and transmit signal port as an interface to radio transceiver equipment. The use of an adaptive antenna in the receive only direction has the potential to increase forward links capacity to levels equal to or greater than reverse link capacity. This allows for a significant increase in the overall number of users that may be active at the same time in a wireless system.

    Abstract translation: 一种仅在接收模式下使用的独立全向发射天线的自适应天线。 该安排对于小型手持无线设备特别有效。 发射天线可以通过利用水平极化的发射和垂直极化的接收机射线与接收阵列集成。 在其他实施例中，发射天线可以是物理上分离的并且不与接收阵列集成。 在任一种情况下，都有单独的接收和发送信号端口作为无线电收发器设备的接口。 在接收方向上使用自适应天线具有将前向链路容量增加到等于或大于反向链路容量的电平的潜力。 这允许在无线系统中可以同时活动的用户的总数量的显着增加。

    Adaptive receive and omnidirectional transmit antenna array
    10.
    发明授权
    Adaptive receive and omnidirectional transmit antenna array 有权
    自适应接收和全向发射天线阵列

    公开(公告)号：US06873293B2

    公开(公告)日：2005-03-29

    申请号：US10386393

    申请日：2003-03-10

    Applicant: James A. Proctor, Jr. ,  Bing Chiang

    Inventor： James A. Proctor, Jr. ,  Bing Chiang

    IPC: H01Q1/24 ,  H01Q1/38 ,  H01Q1/52 ,  H01Q3/26 ,  H01Q3/44 ,  H01Q9/30 ,  H01Q9/42 ,  H01Q19/32 ,  H01Q21/24 ,  H01Q25/00 ,  H04B1/38 ,  H04B7/10 ,  H04B7/26 ,  H04J99/00 ,  H04M1/00

    CPC classification number: H01Q1/243 ,  H01Q1/242 ,  H01Q1/245 ,  H01Q1/38 ,  H01Q1/521 ,  H01Q3/2605 ,  H01Q3/44 ,  H01Q9/30 ,  H01Q9/42 ,  H01Q19/32 ,  H01Q21/24 ,  H01Q25/001 ,  H01Q25/002 ,  H04B7/10

    Abstract: An adaptive antenna used in a receive only mode with a separate omnidirectional transmit antenna. The arrangement is especially effective for small, handheld wireless devices. The transmit antenna maybe integrated with the receive array by utilizing a horizontally polarized transmit and vertically polarized receiver ray. In other embodiments, the transmit antenna may be physically separate and not integrated with the receive array. In either case there is separate receive and transmit signal port as an interface to radio transceiver equipment. The use of an adaptive antenna in the receive only direction has the potential to increase forward links capacity to levels equal to or greater than reverse link capacity. This allows for a significant increase in the overall number of users that may be active at the same time in a wireless system.

    Abstract translation: 在仅接收模式中使用的具有单独的全向发射天线的自适应天线。 该安排对于小型手持无线设备特别有效。 发射天线可以通过利用水平极化的发射和垂直极化的接收机射线与接收阵列集成。 在其他实施例中，发射天线可以是物理上分离的并且不与接收阵列集成。 在任一种情况下，都有单独的接收和发送信号端口作为无线电收发器设备的接口。 在接收方向上使用自适应天线具有将前向链路容量增加到等于或大于反向链路容量的电平的潜力。 这允许在无线系统中可以同时活动的用户的总数量的显着增加。

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