Circuitry for use with coaxial cable distribution networks with a ground
plane near the ports
    2.
    发明授权
    Circuitry for use with coaxial cable distribution networks with a ground plane near the ports 失效
    用于与端口附近的地平面的同轴电缆分配网络一起使用的电路

    公开(公告)号:US5834989A

    公开(公告)日:1998-11-10

    申请号:US794342

    申请日:1997-02-03

    摘要: A conducting housing (to be closed by a lid) for a coaxial cable distribution network has a common port and one of an aerial or pedestal port. A motherboard carries an RF circuit and a transfer switch. In one setting of the transfer switch the RF circuit connects a coaxial pin at the common port with a coaxial pin at the pedestal port. In the other setting the common port pin is connected to the aerial port pin. When the aerial port is used on a rectangular housing, a transmission line forms part of the RF circuit between the motherboard and the aerial port. The transmission is preferably a central conductor spaced over most of its length by air from an outer conductor in the form of an inverted U enclosing the central conductor on three sides. Preferably a ground plane on the back of the motherboard connects to the transmission line outer conductor to provide a path entry in the housing at both ends for ground currents generated by signals in the RF path.

    摘要翻译: 用于同轴电缆分配网络的导电壳体(由盖子封闭)具有公共端口和天线或基座端口中的一个。 主板上装有一个RF电路和一个转接开关。 在转换开关的一个设置中,RF电路将公共端口处的同轴引脚与基座端口的同轴引脚连接。 在另一个设置中,公共端口引脚连接到空中端口引脚。 当空中端口用于矩形外壳时,传输线构成主板和空中端口之间的RF电路的一部分。 传动装置优选地是中心导体,其大部分长度与来自外部导体的空气隔开,该外部导体以三个侧面包围中心导体的倒U形式。 优选地,母板背面的接地平面连接到传输线外部导体,以在两端的壳体中为由RF路径中的信号产生的接地电流提供路径入口。

    Circuitry for use with coaxial cable distribution networks
    4.
    发明授权
    Circuitry for use with coaxial cable distribution networks 失效
    用于同轴电缆分配网络的电路

    公开(公告)号:US6081169A

    公开(公告)日:2000-06-27

    申请号:US182497

    申请日:1998-10-30

    摘要: A conducting housing (to be closed by a lid) for a coaxial cable distribution network has a common port and one of an aerial or pedestal port. A motherboard carries an RF circuit and a transfer switch. In one setting of the transfer switch the RF circuit connects a coaxial pin at the common port with a coaxial pin at the pedestal port. In the other setting the common port pin is connected to the aerial port pin. When the aerial port is used on a rectangular housing, a transmission line forms part of the RF circuit between the motherboard and the aerial port. The transmission is preferably a central conductor spaced over most of its length by air from an outer conductor in the form of an inverted U enclosing the central conductor on three sides. Preferably a ground plane on the back of the motherboard connects to the transmission line outer conductor to provide a path entry in the housing at both ends for ground currents generated by signals in the RF path.

    摘要翻译: 用于同轴电缆分配网络的导电壳体(由盖子封闭)具有公共端口和天线或基座端口中的一个。 主板上装有一个RF电路和一个转接开关。 在转换开关的一个设置中,RF电路将公共端口处的同轴引脚与基座端口的同轴引脚连接。 在另一个设置中,公共端口引脚连接到空中端口引脚。 当空中端口用于矩形外壳时,传输线构成主板和空中端口之间的RF电路的一部分。 传动装置优选地是中心导体,其大部分长度与来自外部导体的空气隔开,该外部导体以三个侧面包围中心导体的倒U形式。 优选地,母板背面的接地平面连接到传输线外部导体,以在两端的壳体中为由RF路径中的信号产生的接地电流提供路径入口。

    Terminal assembly for a CATV
    5.
    发明授权
    Terminal assembly for a CATV 失效
    CATV的端子组件

    公开(公告)号:US5750929A

    公开(公告)日:1998-05-12

    申请号:US731483

    申请日:1996-10-16

    IPC分类号: H05K1/02 H01R17/14

    摘要: A terminal assembly for a CATV RF circuit is located on a circuit board with a slot open towards a port through which projects a coaxial cable pin. The board is located below the pin and the slot allows travel of the board vertically therepast. A conducting blade connected to RF circuitry on the board projects over and parallel to the pin and a yoke, slidable on the blade, slides from a retracted position where the board may be lifted past the pin and an extended position, where it encircles the pin and blade and clamps them together.

    摘要翻译: 用于CATV RF电路的端子组件位于电路板上,其槽口朝向端口打开,通过该端口突出同轴电缆引脚。 该板位于引脚下方,插槽允许板垂直移动。 连接到板上的RF电路的导电叶片突出并平行于销,并且可在叶片上滑动的轭从缩回位置滑动,其中板可以被提升通过销和延伸位置,其中它围绕销 并将刀片夹在一起。

    Coaxial cable distribution network having a reversible directional
coupler
    6.
    发明授权
    Coaxial cable distribution network having a reversible directional coupler 失效
    同轴电缆分配网络具有可逆定向耦合器

    公开(公告)号:US5638035A

    公开(公告)日:1997-06-10

    申请号:US426232

    申请日:1995-04-21

    摘要: A conducting housing (to be closed by a lid) for a coaxial cable distribution network has a common port and one of an aerial or pedestal port. A motherboard carries an RF circuit and a transfer switch. In one setting of the transfer switch the RF circuit connects a coaxial pin at the common port with a coaxial pin at the pedestal port. In the other setting the common port pin is connected to the aerial port pin. When the aerial port is used on a rectangular housing, a transmission line forms part of the RF circuit between the motherboard and the aerial port. The transmission is preferably a central conductor spaced over most of its length by air from an outer conductor in the form of an inverted U enclosing the central conductor on three sides. Preferably a ground plane on the back of the motherboard connects to the transmission line outer conductor to provide a path entry in the housing at both ends for ground currents generated by signals in the RF path.

    摘要翻译: 用于同轴电缆分配网络的导电壳体(由盖子封闭)具有公共端口和天线或基座端口中的一个。 主板上装有一个RF电路和一个转接开关。 在转换开关的一个设置中,RF电路将公共端口处的同轴引脚与基座端口的同轴引脚连接。 在另一个设置中,公共端口引脚连接到空中端口引脚。 当空中端口用于矩形外壳时,传输线构成主板和空中端口之间的RF电路的一部分。 传动装置优选地是中心导体,其大部分长度与来自外部导体的空气隔开,该外部导体以三个侧面包围中心导体的倒U形式。 优选地,母板背面的接地平面连接到传输线外部导体,以在两端的壳体中为由RF路径中的信号产生的接地电流提供路径入口。

    Transmission line transformer device
    7.
    发明授权
    Transmission line transformer device 失效
    输电线路变压器设备

    公开(公告)号:US5220297A

    公开(公告)日:1993-06-15

    申请号:US822694

    申请日:1992-01-21

    IPC分类号: H01F19/04

    CPC分类号: H01F19/04 Y10T29/4902

    摘要: A transmission line transformer device has a body of magnetically permeable material defining two passages each of which is adapted to receive a pair of conductors which extend up one passage, between the passages and down the other passage. The conductor insulation and spacing are adapted to provide a predetermined characteristic impedance across the bandwidth and the body dimensions and passage spacing are adapted to provide isolation between the conductors and selected impedance across the bandwidth.

    摘要翻译: 传输线变压器装置具有限定两个通道的导磁材料本体,每个通道适于接收一对导体,该导体在通道之间延伸,在另一通道之间延伸。 导体绝缘和间距适于在带宽和体尺寸之间提供预定的特征阻抗,并且通道间隔适于提供导体之间的隔离和跨带宽的所选阻抗。