Dual band antenna using a single column of elliptical vivaldi notches
    22.
    发明授权
    Dual band antenna using a single column of elliptical vivaldi notches 有权
    使用单一的柱,用椭圆槽维瓦尔第双频带天线

    公开(公告)号:EP1217690B1

    公开(公告)日:2007-01-10

    申请号:EP01403194.2

    申请日:2001-12-11

    摘要: This invention relates to a tapered slot antenna with broadband characteristics whose beamwidth is stable over both the PCS (1850-1990 MHz) and the cellular bands (824-894 MHz). In a first preferred embodiment, a dual band antenna is disclosed which uses a single column elliptically shaped Vivaldi notches (12, 13) as the radiating elements. In a second preferred embodiment, a dual band antenna comprising elliptically shaped Vivaldi notches (12, 13) and sub-reflector positioned between a main reflector and the dipoles is disclosed. This resultant antenna produces a stable, ninety-degree beamwidth with a bandwidth broad enough to cover the PCS and the cellular bands.

    An impedance matched surge protected coupling loop assembly
    23.
    发明公开
    An impedance matched surge protected coupling loop assembly 审中-公开
    ImpedanzangepassteüberspannungsgeschützteKoppelschleifenanordnung

    公开(公告)号:EP1538700A1

    公开(公告)日:2005-06-08

    申请号:EP04024908.8

    申请日:2004-10-20

    摘要: A tower top amplifier for use outdoors in a radio frequency communications system has a surge suppression device for suppressing electrical surges caused by lightning strikes. The surge suppression circuit has a short circuit inductive coupling loop connected to a coaxial cable connector (102). By using a capacitor (110) connected in parallel with an inductive probe (114), the surge suppression circuit operates as an open circuit at the operating frequency of the system. In addition, at the operating frequency, the resistor (112) matches the impedance of the system connected to the coaxial cable connector (102). But in the event of a lightning strike or other electrical event, the inductive coupling loop short circuits the surge current to ground, thereby protecting the amplifier system from damage.

    摘要翻译: 在射频通信系统中用于户外的塔顶放大器具有用于抑制由雷击引起的电涌的浪涌抑制装置。 浪涌抑制电路具有连接到同轴电缆连接器(102)的短路感应耦合回路。 通过使用与感应探头(114)并联连接的电容器(110),浪涌抑制电路在系统的工作频率下作为开路工作。 此外,在工作频率下,电阻器(112)匹配连接到同轴电缆连接器(102)的系统的阻抗。 但是在发生雷击或其他电气事件的情况下,电感耦合环路将浪涌电流短路到地,从而保护放大器系统免受损坏。

    Angle diversity dual antenna system
    24.
    发明公开
    Angle diversity dual antenna system 审中-公开
    角度分集双天线系统

    公开(公告)号:EP1455412A2

    公开(公告)日:2004-09-08

    申请号:EP04002405.1

    申请日:2004-02-04

    发明人: Lecuyer, Frederic

    摘要: An angle diversity antenna system utilizes a first antenna, a second antenna, and a panel combiner coupled to the first and second antenna. In a transmit mode, the first and second antenna are coupled to a transmit sum channel of the panel combiner. In a receive mode, either the sum channel or a difference channel of the panel combiner is chosen as the active channel. By monitoring the sum channel and difference channel, the antenna system according to the present invention is able to select the channel which supplies the greatest signal strength.

    摘要翻译: 角分集天线系统利用第一天线,第二天线和耦合到第一和第二天线的面板组合器。 在发射模式中,第一和第二天线耦合到面板组合器的发射总和通道。 在接收模式下,面板组合器的总和通道或差分通道被选作活动通道。 通过监视和信道和差信道,根据本发明的天线系统能够选择提供最大信号强度的信道。

    Improved coaxial cable preparation tool
    26.
    发明公开
    Improved coaxial cable preparation tool 有权
    用于同轴电缆改进制备工具

    公开(公告)号:EP1271730A3

    公开(公告)日:2003-10-22

    申请号:EP02291473.3

    申请日:2002-06-13

    IPC分类号: H02G1/12

    摘要: This invention relates to an improved coaxial cable preparation tool (1) that is used to prepare a coaxial cable terminal end for connector installation. The tool comprises two stages. The first stage (10), the jacket stripper, is used to trim the cable jacket. The second stage (20), the cable trimmer, is used to trim the remaining center, the outer conductors and the foam insulation of the coaxial cable. The first stage (10) consists of a cup or cylinder (11) with an outer cylindrical wall (12). In addition, it also comprises a blade (13) and a scrap port (14). In addition, the first stage cylinder (11) has a bore (16) extending axially down its center. The diameter of the bore (16) is set to receive a coaxial cable. The second stage consists of a hub (21) (or cutter head), a collet bearing (22) and a body (23). In addition, like the first stage, it also contains blades (13) and scrap ports (14). The scrap ports or debris ports (14) allow trimmed cable media to escape from the bores in the tool.

    System for cross-coupling resonators
    27.
    发明公开
    System for cross-coupling resonators 有权
    对于谐振器交叉耦合系统

    公开(公告)号:EP1324419A2

    公开(公告)日:2003-07-02

    申请号:EP02028003.8

    申请日:2002-12-13

    IPC分类号: H01P1/205

    CPC分类号: H01P1/205

    摘要: A system for inductively cross coupling resonators. Two resonators are interconnected by a cross coupler with the two ends, each end having a hole. The holes secures each end of the cross coupler to one of the resonators. The use of a stamped piece as a cross coupler results in a repeatable placement between resonators that minimizes any variation in coupling between resonators due to human error during assembly. This repeatability reduces assembly time and assembly cost.

    Isolation improvement circuit for a dual-polarization antenna
    28.
    发明公开
    Isolation improvement circuit for a dual-polarization antenna 审中-公开
    电路,提高用于双极化天线隔离

    公开(公告)号:EP1024551A3

    公开(公告)日:2001-09-26

    申请号:EP99402999.9

    申请日:1999-11-30

    发明人: Marino, Ronald A.

    IPC分类号: H01Q1/52 H01Q21/24 G01S7/03

    CPC分类号: H01Q21/24 H01Q1/525 H04B1/525

    摘要: An isolation improvement circuit for a dual-polarization antenna, the dual-polarization antenna consisting of both a transmitter and receiver antenna for simultaneously transmitting a transmission signal and receiving a receiver signal, in which the transmitter and receiver antennas are configured so as to be mutually orthogonal either by physical or electrical orientation in order to reduce how much of the transmitter signal is picked up by the receiver antenna. The isolation improvement circuit reduces the level of transmitter signal appearing at the output port of the receiver antenna by providing a time-delayed transmission signal that destructively interferes with the transmitter signal picked up by the receiver element. The time delay is provided by sizing a conductor used to convey the transmission signal to the output port of the receiver antenna, or to the receiver antenna and then to the output port, the sizing including not only selecting a length of the conductor, but also, optionally and depending on the type of conductor, adjusting any capacitive or inductive elements of the conductor.

    摘要翻译: 的隔离改进电路,用于双极化天线,所述双极化天线同时发送的发送信号和接收接收器信号,其中,所述发射器和接收器天线被配置为能够相互同时包含一个发射器和接收器天线的 正交或者通过以减少多少发射机的信号的物理或电取向由接收机天线拾取。 隔离改善电路通过提供一个时间延迟的发送信号做破坏性干扰发射机的信号拾取由接收机元件减少发射机信号在接收器天线的输出端口露面的水平。 的时间延迟是通过施胶用于将发送信号传送到接收器天线的输出端口,或到接收器天线,然后到输出端口的导体提供,上浆不仅包括选择所述导体的长度,所以但 任选并且取决于导体的类型,调节导体的任何电容或电感元件。

    Coupling structure for coupling cavity resonators
    29.
    发明公开
    Coupling structure for coupling cavity resonators 有权
    耦合结构,用于空腔共振器

    公开(公告)号:EP0986126A3

    公开(公告)日:2001-08-16

    申请号:EP99402022.0

    申请日:1999-08-09

    IPC分类号: H01P1/208

    CPC分类号: H01P1/2084 H01P1/2053

    摘要: A coupling structure for coupling two resonant cavities, which may be dissimilar, based on providing a metallic surface, called here a guide surface, at an angle intermediate between the orientation of the magnetic field in the two cavities. The guide surface may be one surface of a non-rectangular window cut in a wall separating the two cavities or may be the surface of coupling screw piercing, at the intermediate angle, a rectangular window in a wall between the two cavities. In the non-rectangular window embodiment, an adjusting tuning screw is provided that screws into a notch in the guide surface. In the angled coupling screw embodiment, coupling is adjusted by providing that more or less of the angled coupling screw extends into the rectangular window. The coupling structure couples any two cavities having mutually orthogonal magnetic fields by providing the guide surface at an orientation so the magnetic field in each cavity has a non-zero projection onto the guide surface.

    Antenna system with remote control of the beam tilt
    30.
    发明公开
    Antenna system with remote control of the beam tilt 有权
    Antennensystem mit Fernsteuerung der Antennenkeulenneigung

    公开(公告)号:EP1067626A2

    公开(公告)日:2001-01-10

    申请号:EP00401724.0

    申请日:2000-06-16

    摘要: An antenna control system is connected to an antenna (10) in order to control the position of the antenna. The system includes a motor (20) connected to the antenna for adjusting the position or vertical tilt angle of the antenna. A driver is provided for operating the motor. A sensor (30) is also provided to detect the position of the antenna. In addition, an antenna controller (40) is connected to an antenna memory, the driver, and the sensor, for reading the detected position of the antenna and for controlling the driver to adjust the antenna's position. A main controller (50) is connected to the antenna controller for sending commands to and reading data from the antenna controller. In this manner, the main controller can interface with any number of antennas at a base station and control the position or down-tilt of each antenna. According to one embodiment of the control system, a user interface (60) is also provided for entering commands to and reading data from the main controller. The interface can be provided at the base station or tower or at a remote location via, for example, modem. According to one embodiment of the invention the user interface is a laptop computer. A user or technician can then enter commands and monitor the position of the antennas from a remote location.

    摘要翻译: 天线控制系统连接到天线(10)以便控制天线的位置。 该系统包括连接到天线的电动机(20),用于调整天线的位置或垂直倾斜角度。 提供驱动器用于操作电机。 还提供传感器(30)以检测天线的位置。 此外,天线控制器(40)连接到天线存储器,驱动器和传感器,用于读取天线的检测位置,并用于控制驾驶员调整天线的位置。 主控制器(50)连接到天线控制器,用于向天线控制器发送命令并从天线控制器读取数据。 以这种方式,主控制器可以与基站处的任何数量的天线接口并且控制每个天线的位置或向下倾斜。 根据控制系统的一个实施例,还提供用于向主控制器输入命令和从主控制器读取数据的用户界面(60)。 该接口可以通过例如调制解调器在基站或塔架或远程位置处提供。 根据本发明的一个实施例,用户接口是膝上型计算机。 然后,用户或技术人员可以从远程位置输入命令并监视天线的位置。