Method of and apparatus for connecting waveguides
    31.
    发明公开
    Method of and apparatus for connecting waveguides 审中-公开
    对于波导的连接的方法和装置

    公开(公告)号:EP1289048A3

    公开(公告)日:2003-08-06

    申请号:EP02017605.3

    申请日:2002-08-05

    申请人: Andrew AG

    IPC分类号: H01P5/08 H01P1/04

    CPC分类号: H01P5/082

    摘要: A waveguide connector for connecting an elliptical waveguide to a rectangular waveguide includes an elliptical-waveguide-receiving portion adapted to receive an end portion of an elliptical waveguide. The waveguide connector also includes a rectangular-waveguide-connecting portion adapted to connect to an end portion of a rectangular waveguide. After the end portion of the elliptical waveguide has been received in the elliptical-waveguide-receiving portion of the waveguide connector, the elliptical waveguide and the waveguide connector are soldered together. The rectangular-waveguide-connecting portion of the waveguide connector includes a flange with attachment points therein. The rectangular-waveguide-connecting portion of the waveguide connector is attached to a rectangular waveguide through the attachment points via screws, bolts, or the like. One embodiment of the waveguide connector includes unitary construction wherein a stepped transformer having transition sections is formed therewith.

    Broadband shorted stub surge protector
    32.
    发明公开
    Broadband shorted stub surge protector 有权
    浪涌宽带适应分支保护

    公开(公告)号:EP1137095A3

    公开(公告)日:2003-01-02

    申请号:EP01106355.9

    申请日:2001-03-16

    申请人: Andrew AG

    CPC分类号: H01P1/202

    摘要: A surge protector comprises a coaxial through-section having a first inner conductor, a first outer conductor, and a first dielectric disposed between the first inner conductor and the first outer conductor, and a coaxial shorting stub having a second inner conductor and a second outer conductor. The stub has a first end and a second end. The stub being coupled to the coaxial through-section wherein the second inner conductor is conductively coupled to the first inner conductor at the first end of the stub and the second outer conductor is conductively coupled to the first outer conductor at the first end of the stub. The second inner conductor is substantially hollow. The second inner conductor has at least one helical aperture disposed therein. The at least one helical aperture is continuous for at least about one revolution around the second inner conductor. A shorting plate is conductively coupled to the second inner and second outer conductors at the second end of the stub.

    Corrugated coaxial cable with high velocity of propagation
    33.
    发明公开
    Corrugated coaxial cable with high velocity of propagation 无效
    具有高传输速率和方法,用于其制备波纹同轴电缆

    公开(公告)号:EP1211697A2

    公开(公告)日:2002-06-05

    申请号:EP01128653.1

    申请日:2001-11-30

    申请人: Andrew AG

    IPC分类号: H01B11/18

    摘要: A corrugated coaxial cable including a core with at least one inner conductor and a highly expanded polymeric foam dielectric surrounding the inner conductor. This coaxial cable has a corrugated outer conductor closely encapsulating the foam dielectric. The corrugated coax cable has a velocity of propagation of greater than 90% of the speed of light, resulting in improved signal propagation characteristics, especially in attenuation, while still maintaining the high flexibility and bending properties which are characteristic of corrugated coaxial cables designs.

    摘要翻译: 波纹同轴电缆包括与至少一个内导体的芯和围绕所述内导体的高膨胀聚合泡沫电介质。 此同轴电缆具有波纹状外导体紧密包封所述发泡电介质。 波纹同轴电缆具有的光的速度的90%以上的传播的速度,在改进的信号传播特性得到的,爱尤其是在衰减,而无声保持高挠性和弯曲哪些是波纹同轴电缆的设计特征性质。

    Planar antenna array for point-to-point communications
    34.
    发明公开
    Planar antenna array for point-to-point communications 有权
    Ebene GruppenantennefürPunkt-zu-Punkt Kommunikation

    公开(公告)号:EP1199772A2

    公开(公告)日:2002-04-24

    申请号:EP01124044.7

    申请日:2001-10-09

    申请人: Andrew AG

    发明人: Ho, Jimmy

    IPC分类号: H01Q21/06 H01Q21/00 H01Q21/22

    摘要: A planar antenna array for linearly polarized waves is proposed which offers a technique of improving the radiation pattern of the antenna by compensating for amplitude and phase imbalance due to coupling between adjacent lines in the feed network. This imbalance causes the radiation patterns to be severely distorted. The proposed configuration uses slots offset in certain parts of the array and then bonds the slots to an aperture/waveguide layer and produces an antenna with good gain, good match over a wide frequency band and good cross polar discrimination as well as providing an improvement in the overall radiation pattern of the antenna.

    摘要翻译: 提出了一种用于线性偏振波的平面天线阵列,其提供了一种通过补偿由于馈电网络中的相邻线路之间的耦合而导致的幅度和相位不平衡来改善天线的辐射图案的技术。 这种不平衡导致辐射模式严重扭曲。 所提出的配置在阵列的某些部分中使用时隙偏移,然后将时隙连接到孔径/波导层,并产生具有良好增益的良好天线,在宽频带上良好的匹配和良好的交叉极性鉴别,以及提供改善 天线的整体辐射图。

    A method and apparatus for transmitting radio frequency signals to and from a pager
    35.
    发明公开
    A method and apparatus for transmitting radio frequency signals to and from a pager 审中-公开
    方法和装置,用于发送无线电信号和从寻呼机

    公开(公告)号:EP1098538A2

    公开(公告)日:2001-05-09

    申请号:EP00123378.2

    申请日:2000-10-31

    申请人: Andrew AG

    IPC分类号: H04Q7/10

    摘要: A repeater for transmitting and receiving radio frequency (RF) signals to and from a pager. The repeater includes a forward path for receiving a first RF signal from a base station and a reverse path for receiving a pager signal from a pager. The forward path includes a channelizer which down converts the first RF signal to an intermediate frequency (IF) signal, amplifies the IF signal, and up converts the IF signal to a second RF signal suitable for transmission to a pager. The reverse path includes a second amplifier which amplifies the pager signal to an amplified signal suitable for transmission to a base station antenna.

    Waveguide adaptor assembly and method
    37.
    发明公开
    Waveguide adaptor assembly and method 审中-公开
    Wellenleiter-Adapteranordnung und Verfahren

    公开(公告)号:EP1959517A2

    公开(公告)日:2008-08-20

    申请号:EP08007879.3

    申请日:2003-01-14

    申请人: Andrew AG

    IPC分类号: H01P1/04

    CPC分类号: H01P1/042 Y10T29/49016

    摘要: A flange adaptor assembly for coupling a waveguide to any number of flange interfaces, wherein the assembly includes a flange adaptor having a predetermined flange coupling interface. The flange adaptor of the present invention is constructed for engaging the common adaptor side of a number of waveguide flanges, while being semi-permanently secured to the end of a waveguide. The flange interface side of the waveguide flanges varies in accordance with the flange interface to which the waveguide is to be connected. In this manner, a single waveguide can be manufactured and assembled for use with multiple waveguide flanges.

    摘要翻译: 一种用于将波导耦合到任何数量的凸缘接口的法兰适配器组件,其中所述组件包括具有预定法兰联接接口的凸缘适配器。 本发明的凸缘适配器被构造成用于接合多个波导凸缘的公共适配器侧,同时半永久地固定到波导的端部。 波导凸缘的法兰接口侧根据要连接波导的法兰接口而变化。 以这种方式,可以制造和组装单个波导,以便与多个波导法兰一起使用。

    Process and modular apparatus for gas drying
    38.
    发明公开
    Process and modular apparatus for gas drying 有权
    气体干燥过程和模块化设备

    公开(公告)号:EP1754941A2

    公开(公告)日:2007-02-21

    申请号:EP06253421.9

    申请日:2006-06-29

    申请人: Andrew AG

    IPC分类号: F24F3/14 B01D53/26

    摘要: A dry gas production system (10) for supplying dry gas to a pressurized space, such as an underground conduit or an aerial cable. The dry gas production system (10) may include a modular enclosure (12) that has a removable support (28) to which multiple dry gas production modules (30,32) are mounted. The support may be a mobile rack wheeled inside the enclosure and likewise removed from the enclosure (12) while supporting the dry gas production modules (30,32). The dry gas production system may include multiple dry gas production modules that are operated as required to meet the dry gas demand for the pressurized space. The module compressor may include a variable frequency drive for driving the compressor motor at different speeds and may optionally include a mount with vibration isolation.

    摘要翻译: 一种干燥气体生产系统(10),用于将干燥气体供应到加压空间,例如地下导管或架空电缆。 干气生产系统(10)可以包括模块化外壳(12),该模块化外壳具有可拆卸的支撑件(28),多个干燥气体生产模块(30,32)安装在该支撑件上。 支撑件可以是在外壳内轮播的移动架并且同时支撑干燥气体生产模块(30,32)时从外壳(12)移除。 干气生产系统可以包括多个干气生产模块,其根据需要操作以满足加压空间的干气需求。 模块压缩机可以包括用于以不同速度驱动压缩机电机的变频驱动器,并且可以可选地包括具有隔振的支架。

    A transmitter with an envelope tracking power amplifier utilizing digital predistortion of the signal envelope
    39.
    发明公开
    A transmitter with an envelope tracking power amplifier utilizing digital predistortion of the signal envelope 审中-公开
    使用所述信号包络的数字预失真Hüllkurvenfolgendem发射机功率放大器

    公开(公告)号:EP1672783A1

    公开(公告)日:2006-06-21

    申请号:EP05256744.3

    申请日:2005-11-01

    申请人: Andrew AG

    IPC分类号: H03F1/32

    CPC分类号: H03F1/0222 H03F2200/102

    摘要: A transmitter comprises an amplifier operable for receiving an input signal and amplifying the input signal to produce an output signal. A power supply is coupled to the amplifier for supplying power to the amplifier, the power supply operable for tracking the input signal and varying the level of power supplied to the amplifier in response to variation of the input signal. A predistortion circuit is coupled to the power supply, the predistortion circuit operable for receiving the input signal and predistorting the input signal to the power supply for addressing input signal tracking capabilities of the power supply.

    摘要翻译: 发射机包括放大器可操作用于在输入信号接收并放大输入信号以产生在输出信号的。 电源被耦合到所述放大器用于提供电力到所述放大器,所述电源可操作用于跟踪所述输入信号,并改变响应于所述输入信号的变化提供给放大器的功率电平。 的预失真电路被耦合到所述电源,所述预失真电路,其可操作用于接收输入信号和预失真的输入信号用于寻址所述电源的输入信号跟踪能力的电源。

    Low visual impact monopole tower for wireless communications
    40.
    发明公开
    Low visual impact monopole tower for wireless communications 审中-公开
    Antennenmast mit geringem visuellen Eindruckfürdrahtlose Kommunikationen

    公开(公告)号:EP1612883A1

    公开(公告)日:2006-01-04

    申请号:EP05077183.1

    申请日:2004-02-23

    申请人: Andrew AG

    IPC分类号: H01Q1/24 H01Q1/12

    摘要: An antenna system incorporating at least two pluralities of antennas 12, 27 circumferentially arranged with a side-by-side relationship about a monopole tower 15. The main beam direction of the radiation pattern emanating from each antenna 10 may be remotely adjusted in elevation and/or azimuth. The main beam direction of the radiation pattern emanating from adjacent antennas 10 may be varied independently. The antennas may be partitioned in one or more vertically-spaced groups 12, 27 each of which is arranged about a circumference of the monopole tower 15.

    摘要翻译: 包括至少两个多个天线12,27的天线系统,其围绕单极塔15以并排的关系周向布置。从每个天线10发出的辐射图案的主波束方向可以在高程和/ 或方位角。 从相邻天线10发出的辐射图案的主波束方向可以独立变化。 天线可以被分隔成一个或多个垂直间隔的组12,27,每个组围绕单极塔15的圆周布置。