Low cost multiple pattern antenna for use with multiple receiver systems
    1.
    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

    IPC分类号: H01Q3/00

    摘要: 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.

    摘要翻译: 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。

    Dual band phased array employing spatial second harmonics
    2.
    发明授权
    Dual band phased array employing spatial second harmonics 失效
    双频相控阵采用空间二次谐波

    公开(公告)号:US07202835B2

    公开(公告)日:2007-04-10

    申请号:US10873834

    申请日:2004-06-22

    IPC分类号: H01Q19/10

    摘要: A directive antenna operable in multiple frequency bands includes an active antenna element and at least one passive antenna element parasitically coupled to the active antenna element. The passive antenna element(s) have length and spacing substantially optimized to operate at (i) a fundamental frequency associated with the active antenna element and (ii) a higher resonant frequency related to the fundamental frequency. Spatial-harmonic current-distributions of the passive antenna elements are used to create the multiple frequency bands of operation. The directive antenna also includes devices operatively coupled to the passive antenna element(s) to steer an antenna beam formed by applying a signal at the fundamental resonant frequency, higher resonant frequency, or both to the active antenna element to operate in the multiple frequency bands.

    摘要翻译: 可在多个频带中操作的指示天线包括有源天线元件和至少一个与有源天线元件寄生耦合的无源天线元件。 无源天线元件具有基本优化的长度和间隔,以在(i)与有源天线元件相关联的基频和(ii)与基频有关的较高谐振频率下工作。 无源天线元件的空间谐波电流分布用于创建多个频带的操作。 指导天线还包括可操作地耦合到无源天线元件的装置,以引导通过将基频谐振频率,较高谐振频率或两者的信号施加到有源天线元件而形成的天线波束,以在多个频带 。

    Dual band phased array employing spatial second harmonics
    5.
    发明授权
    Dual band phased array employing spatial second harmonics 失效
    双频相控阵采用空间二次谐波

    公开(公告)号:US06753826B2

    公开(公告)日:2004-06-22

    申请号:US10292384

    申请日:2002-11-08

    IPC分类号: H01Q1910

    摘要: A directive antenna operable in multiple frequency bands includes an active antenna element and at least one passive antenna element parasitically coupled to the active antenna element. The passive antenna element(s) have length and spacing substantially optimized to operate at (i) a fundamental frequency associated with the active antenna element and (ii) a higher resonant frequency related to the fundamental frequency. Spatial-harmonic current-distributions of the passive antenna elements are used to create the multiple frequency bands of operation. The directive antenna also includes devices operatively coupled to the passive antenna element(s) to steer an antenna beam formed by applying a signal at the fundamental resonant frequency, higher resonant frequency, or both to the active antenna element to operate in the multiple frequency bands.

    摘要翻译: 可在多个频带中操作的指示天线包括有源天线元件和至少一个与有源天线元件寄生耦合的无源天线元件。 无源天线元件具有基本优化的长度和间隔,以在(i)与有源天线元件相关联的基频和(ii)与基频有关的较高谐振频率下工作。 无源天线元件的空间谐波电流分布用于创建多个频带的操作。 指导天线还包括可操作地耦合到无源天线元件的装置,以引导通过将基频谐振频率,较高谐振频率或两者的信号施加到有源天线元件而形成的天线波束,以在多个频带 。

    Low cost multiple pattern antenna for use with multiple receiver systems
    6.
    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

    摘要: 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.

    摘要翻译: 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。

    Multiband ring focus antenna employing shaped-geometry main reflector and diverse-geometry shaped subreflector-feeds
    8.
    发明授权
    Multiband ring focus antenna employing shaped-geometry main reflector and diverse-geometry shaped subreflector-feeds 有权
    多频带环形聚焦天线采用成形几何主反射器和多样几何形状的子反射器馈送

    公开(公告)号:US06211834B1

    公开(公告)日:2001-04-03

    申请号:US09163651

    申请日:1998-09-30

    IPC分类号: H01Q1919

    CPC分类号: H01Q19/19 H01Q19/17

    摘要: A multiband, shaped ring focus antenna architecture employs only a single or common main reflector, that is shaped such that it can be shared by each of a pair of interchangeable, diversely shaped close proximity-coupled, subreflector-feed pairs designed for operation at respectively different spectral bands. The operational band of the antenna is changed by swapping out the subreflector-feed pairs. Placement of the shaped subreflector in close proximity to the feed horn reduces the diameter of the main shaped reflector relative to a conventional ring focus structure, so as to facilitate installation within a constrained space facility, such as a shipboard-mounted satellite communication system.

    摘要翻译: 多波段成形的环形聚焦天线架构仅使用单个或公共主反射器,其被成形为使得其可以由设计用于分别操作的一对可互换,多样形状的近距离耦合的子反射器馈送对中的每一个共享 不同的光谱带。 通过交换子反射器馈送对来改变天线的工作频带。 成形的副反射器靠近馈电喇叭的放置相对于常规的环形焦点结构减小了主要成形反射器的直径,以便于安装在诸如船上安装的卫星通信系统之类的有限的空间设施内。

    Multi-band antenna for wireless applications
    9.
    发明授权
    Multi-band antenna for wireless applications 失效
    用于无线应用的多频带天线

    公开(公告)号:US07268731B2

    公开(公告)日:2007-09-11

    申请号:US10895813

    申请日:2004-07-20

    IPC分类号: H01Q1/24

    摘要: A folded monopole antenna that supports lower and upper frequency bands may be used in CDMA, WLAN, or other wireless communications systems. The folded monopole antenna may be located in a handset next to a vertical ground plane. The folded monopole antenna may be folded at least twice and connected to the ground plane through a reactance. The dimensions of different sections of the folded monopole antenna define lower and upper frequency band characteristics, and an offset location of an input feed affects the bandwidth of the frequency bands. The reactance between the antenna and ground plane can be selected to fine tune the frequency bands. Various input feeds, including a co-planar waveguide, may be employed. Dynamically adjustable reactances may be used in the input feed and ground line for adapting the antenna to various environments.

    摘要翻译: 支持较低和较高频带的折叠式单极天线可用于CDMA,WLAN或其他无线通信系统。 折叠的单极天线可以位于靠近垂直接地平面的手机中。 折叠的单极天线可以折叠至少两次,并通过电抗连接到接地平面。 折叠单极天线的不同部分的尺寸限定较低和较高的频带特性,并且输入馈送的偏移位置影响频带的带宽。 可以选择天线和接地平面之间的电抗来微调频带。 可以采用包括共面波导在内的各种输入馈送。 可以在输入进给和接地线中使用动态可调电抗,以使天线适应各种环境。

    Access point antenna for a wireless local area network
    10.
    发明授权
    Access point antenna for a wireless local area network 有权
    无线局域网接入点天线

    公开(公告)号:US07239288B2

    公开(公告)日:2007-07-03

    申请号:US10953893

    申请日:2004-09-29

    IPC分类号: H01Q19/10

    CPC分类号: H01Q1/2291 H01Q19/32

    摘要: An access point antenna for a wireless local area network (WLAN) includes a combiner network with a feed point, a ground plane adjacent the combiner network, and a dielectric substrate adjacent the ground plane. Conductive paths are on the dielectric substrate and are coupled to the feed point. Active antenna elements extend from the dielectric substrate. Each active antenna element is coupled to a respective conductive path and is equally spaced from a common area on the dielectric substrate. A passive director antenna element extends from the dielectric substrate and is coupled to the ground plane adjacent the common area.

    摘要翻译: 用于无线局域网(WLAN)的接入点天线包括具有馈电点的组合器网络,与组合器网络相邻的接地平面以及与接地平面相邻的电介质衬底。 导电路径在电介质基片上并耦合到馈电点。 有源天线元件从电介质基片延伸。 每个有源天线元件耦合到相应的导电路径,并且与电介质基片上的公共区域等间隔开。 无源导向器天线元件从电介质基板延伸并且被耦合到邻近公共区域的接地平面。