Switchless band separation for transceivers
    1.
    发明授权
    Switchless band separation for transceivers 有权
    收发器的无切换频带分离

    公开(公告)号:US08768267B2

    公开(公告)日:2014-07-01

    申请号:US13020204

    申请日:2011-02-03

    IPC分类号: H04B1/38

    摘要: A system includes a plurality of band pass filters to pass signals in separated frequency bands to or from an antenna. A matching network provides characteristic impedances. The system is designed such that the configuration of the matching network and BPFs provides high impedance to the band pass filters for those routing paths other than the band pass path as these routing paths do not transmit or receive the signals at this particular pass band. The system is further designed such that the configuration of the matching network and BPFs provides minimal insertion loss for the band pass path of for transmission and receipt of signals at this particular pass band, where each routing path has a corresponding pass band. The matching network is for coupling to an amplifier, when frequency separation is needed at the output of the amplifier to the BPFs. In one embodiment an impedance network tunes the impedance by using varying length transmission lines.

    摘要翻译: 一种系统包括多个带通滤波器,用于将分离的频带中的信号传递到天线或来自天线。 匹配网络提供特征阻抗。 该系统被设计为使得匹配网络和BPF的配置为除了带通路径之外的那些路由路径的带通滤波器提供高阻抗,因为这些路由路径不在该特定通带处发送或接收信号。 该系统被进一步设计,使得匹配网络和BPF的配置为用于在该特定通带处的信号的发送和接收的带通路径提供最小的插入损耗,其中每个路由路径具有对应的通带。 匹配网络用于耦合到放大器,当放大器的输出端需要频率分离到BPF时。 在一个实施例中,阻抗网络通过使用变长的传输线来调谐阻抗。

    SWITCHLESS BAND SEPARATION FOR TRANSCEIVERS
    4.
    发明申请
    SWITCHLESS BAND SEPARATION FOR TRANSCEIVERS 有权
    收货人的开关带分离

    公开(公告)号:US20110210787A1

    公开(公告)日:2011-09-01

    申请号:US13020204

    申请日:2011-02-03

    IPC分类号: H03F3/68 H03H7/38

    摘要: A system includes a plurality of band pass filters to pass signals in separated frequency bands to or from an antenna. A matching network provides characteristic impedances. The system is designed such that the configuration of the matching network and BPFs provides high impedance to the band pass filters for those routing paths other than the band pass path as these routing paths do not transmit or receive the signals at this particular pass band. The system is further designed such that the configuration of the matching network and BPFs provides minimal insertion loss for the band pass path of for transmission and receipt of signals at this particular pass band, where each routing path has a corresponding pass band. The matching network is for coupling to an amplifier, when frequency separation is needed at the output of the amplifier to the BPFs. In one embodiment an impedance network tunes the impedance by using varying length transmission lines.

    摘要翻译: 一种系统包括多个带通滤波器,用于将分离的频带中的信号传递到天线或来自天线。 匹配网络提供特征阻抗。 该系统被设计为使得匹配网络和BPF的配置为除了带通路径之外的那些路由路径的带通滤波器提供高阻抗,因为这些路由路径不在该特定通带处发送或接收信号。 该系统被进一步设计,使得匹配网络和BPF的配置为用于在该特定通带处的信号的发送和接收的带通路径提供最小的插入损耗,其中每个路由路径具有对应的通带。 匹配网络用于耦合到放大器,当放大器的输出端需要频率分离到BPF时。 在一个实施例中,阻抗网络通过使用变长的传输线来调谐阻抗。

    Duplexer with enhanced isolation
    9.
    发明授权
    Duplexer with enhanced isolation 有权
    双工器具有增强的隔离

    公开(公告)号:US09154178B2

    公开(公告)日:2015-10-06

    申请号:US13698620

    申请日:2011-05-16

    摘要: A system includes a transmit filter (160) in a transmit path to couple to an antenna (120) and pass signals in a transmit band. A receive filter (155) is disposed in a receive path to couple to the antenna and to the transmit filter to pass signals in a receive band different from the transmit band. An enhanced frequency variable impedance (145) is used to provide isolation between signals in the transmit and receive bands on the receive path. A phase and magnitude controlled feedback path can also be used to cancel transmit signals in the receive path.

    摘要翻译: 系统包括在发射路径中的发射滤波器(160),以耦合到天线(120)并传送发射频带中的信号。 接收滤波器(155)设置在接收路径中以耦合到天线和发射滤波器以传递不同于发射频带的接收频带中的信号。 增强的频率可变阻抗(145)用于提供接收路径上的发射和接收频带中的信号之间的隔离。 相位和幅度控制反馈路径也可用于消除接收路径中的发射信号。

    DUPLEXER WITH ENHANCED ISOLATION
    10.
    发明申请
    DUPLEXER WITH ENHANCED ISOLATION 有权
    双机与增强隔离

    公开(公告)号:US20130114470A1

    公开(公告)日:2013-05-09

    申请号:US13698620

    申请日:2011-05-16

    IPC分类号: H04B1/48

    摘要: A system includes a transmit filter (160) in a transmit path to couple to an antenna (120) and pass signals in a transmit band. A receive filter (155) is disposed in a receive path to couple to the antenna and to the transmit filter to pass signals in a receive band different from the transmit band. An enhanced frequency variable impedance (145) is used to provide isolation between signals in the transmit and receive bands on the receive path. A phase and magnitude controlled feedback path can also be used to cancel transmit signals in the receive path.

    摘要翻译: 系统包括在发射路径中的发射滤波器(160),以耦合到天线(120)并传送发射频带中的信号。 接收滤波器(155)设置在接收路径中以耦合到天线和发射滤波器以传递不同于发射频带的接收频带中的信号。 增强的频率可变阻抗(145)用于提供接收路径上的发射和接收频带中的信号之间的隔离。 相位和幅度控制反馈路径也可用于消除接收路径中的发射信号。