Removing interfering signals in a broadband radio frequency receiver
    1.
    发明授权
    Removing interfering signals in a broadband radio frequency receiver 失效
    去除宽带射频接收机中的干扰信号

    公开(公告)号:US07672653B2

    公开(公告)日:2010-03-02

    申请号:US11688522

    申请日:2007-03-20

    IPC分类号: H04B1/06 H04B1/18

    摘要: Various embodiments are directed to removing interfering signals in a broadband radio frequency (RF) receiver by implementing a silicon tuner arranged to replicate high quality factor (Q) performance without the advantages of using high Q components available for module tuners. In one or more embodiments, tuned filter elements within a broadband silicon tuner are reused to maximize the attenuation of unwanted signals while minimizing induced undesirable channel ripple. In various implementations, a number of tuned passive inductor/capacitor filter elements are combined as required such that filter elements for an unused frequency band are reconfigured to provide attenuation of and enhanced immunity to unwanted signals. Other embodiments are described and claimed.

    摘要翻译: 各种实施例旨在通过实施布置成复制高质量因子(Q)性能的硅调谐器而不使用可用于模块调谐器的高Q分量的优点来去除宽带射频(RF)接收机中的干扰信号。 在一个或多个实施例中,宽带硅调谐器内的调谐滤波器元件被重新使用以最大化不需要的信号的衰减,同时最小化诱导的不期望的信道纹波。 在各种实施方案中,根据需要组合多个调谐的无源电感器/电容器滤波器元件,使得针对未使用频带的滤波器元件被重新配置以提供衰减并增强对不想要的信号的抗扰性。 描述和要求保护其他实施例。

    AGC module and method for controlling noise figure and intermodulation characteristics therein
    3.
    发明授权
    AGC module and method for controlling noise figure and intermodulation characteristics therein 失效
    AGC模块及其中控制噪声系数和互调特性的方法

    公开(公告)号:US07626457B2

    公开(公告)日:2009-12-01

    申请号:US11863701

    申请日:2007-09-28

    IPC分类号: H03F3/45

    摘要: An Automatic Gain Control (AGC) module for controlling Noise Figure (NF) and IM characteristics therein is disclosed. The AGC module comprises a plurality of AGC stages. Each AGC stage comprises a differential amplifier circuit, an input signal transistor and a current-steering circuit. Differential amplifier circuits of the plurality of AGC stages receive control signals at their differential inputs and their output is connected to a common load. The input signal transistors of the plurality of AGC stages receive a common input signal and is further coupled to the differential amplifier circuit and the current-steering circuit. The current-steering circuits and the control signals at the differential amplifier circuits control gain of the each AGC stage of the plurality of AGC stage, which is used to control the NF and the IM characteristics.

    摘要翻译: 公开了一种用于控制噪声系数(NF)和IM特性的自动增益控制(AGC)模块。 AGC模块包括多个AGC级。 每个AGC级包括差分放大器电路,输入信号晶体管和电流 - 转向电路。 多个AGC级的差分放大器电路在其差分输入处接收控制信号,并且其输出连接到公共负载。 多个AGC级的输入信号晶体管接收公共输入信号,并且还耦合到差分放大器电路和电流转向电路。 差动放大器电路中的电流导向电路和控制信号控制用于控制NF和IM特性的多个AGC级的每个AGC级的增益。

    AGC MODULE AND METHOD FOR CONTROLLING NOISE FIGURE AND INTERMODULATION CHARACTERISTICS THEREIN
    4.
    发明申请
    AGC MODULE AND METHOD FOR CONTROLLING NOISE FIGURE AND INTERMODULATION CHARACTERISTICS THEREIN 失效
    用于控制噪声图的AGC模块和方法及其互连特性

    公开(公告)号:US20090085660A1

    公开(公告)日:2009-04-02

    申请号:US11863701

    申请日:2007-09-28

    IPC分类号: H03F3/45

    摘要: An Automatic Gain Control (AGC) module for controlling Noise Figure (NF) and IM characteristics therein is disclosed. The AGC module comprises a plurality of AGC stages. Each AGC stage comprises a differential amplifier circuit, an input signal transistor and a current-steering circuit. Differential amplifier circuits of the plurality of AGC stages receive control signals at their differential inputs and their output is connected to a common load. The input signal transistors of the plurality of AGC stages receive a common input signal and is further coupled to the differential amplifier circuit and the current-steering circuit. The current-steering circuits and the control signals at the differential amplifier circuits control gain of the each AGC stage of the plurality of AGC stage, which is used to control the NF and the IM characteristics.

    摘要翻译: 公开了一种用于控制噪声系数(NF)和IM特性的自动增益控制(AGC)模块。 AGC模块包括多个AGC级。 每个AGC级包括差分放大器电路,输入信号晶体管和电流 - 转向电路。 多个AGC级的差分放大器电路在其差分输入处接收控制信号,并且其输出连接到公共负载。 多个AGC级的输入信号晶体管接收公共输入信号,并且还耦合到差分放大器电路和电流转向电路。 差动放大器电路中的电流导向电路和控制信号控制用于控制NF和IM特性的多个AGC级的每个AGC级的增益。

    Network
    5.
    发明申请
    Network 失效
    网络

    公开(公告)号:US20070030087A1

    公开(公告)日:2007-02-08

    申请号:US11545959

    申请日:2006-10-10

    IPC分类号: H03B5/12

    摘要: A variable capacitance network is disclosed, comprising a plurality of capacitance arms connected in parallel with each other between first and second terminals of the network. Each capacitance arm has a varactor and a series capacitor in series with the varactor A control input applies a common control signal to the junctions between the varactors and their associated series capacitors, to allow for simultaneous control of each varactor.

    摘要翻译: 公开了一种可变电容网络,包括在网络的第一和第二终端之间彼此并联连接的多个电容臂。 每个电容臂具有变容二极管和与变容二极管串联的串联电容器。控制输入端将通用控制信号施加到变容二极管及其相关串联电容器之间的接点,以允许同时控制每个变容二极管。

    Integrated circuit device
    6.
    发明授权
    Integrated circuit device 失效
    集成电路器件

    公开(公告)号:US07102437B2

    公开(公告)日:2006-09-05

    申请号:US10936877

    申请日:2004-09-09

    申请人: Colin Perry

    发明人: Colin Perry

    IPC分类号: H03F3/45

    摘要: An integrated circuit device includes an amplifier stage comprising a pair of transistors (134A, 134B), the respective bases or gates of which are connected together, as well as the respective emitters or sources. The respective drains or collectors of the transistors are capacitively coupled (166) so as to be effectively shorted at the frequencies of operation of the amplifier, A biasing circuit arrangement (144) is also provided which employs bias control feedback to set the bias currents for the transistors. The biasing circuit arrangement takes as its input the current flowing at one of the electrodes (160) of one of the transistors.

    摘要翻译: 集成电路器件包括放大器级,其包括一对晶体管(134A,134B),其相应的基极或栅极连接在一起,以及相应的发射极或源极。 晶体管的相应的漏极或集电极电容耦合(166),以便在放大器的工作频率下被有效地短路。还提供偏置电路装置(144),其利用偏置控制反馈来设置偏置电流 晶体管。 偏置电路装置以其中一个晶体管的电极(160)中的一个流动的电流作为其输入。

    Integrated circuit device
    7.
    发明申请
    Integrated circuit device 失效
    集成电路器件

    公开(公告)号:US20050231283A1

    公开(公告)日:2005-10-20

    申请号:US10936877

    申请日:2004-09-09

    申请人: Colin Perry

    发明人: Colin Perry

    摘要: An integrated circuit device includes an amplifier stage comprising a pair of transistors (134A, 134B), the respective bases or gates of which are connected together, as well as the respective emitters or sources. The respective drains or collectors of the transistors are capacitively coupled (166) so as to be effectively shorted at the frequencies of operation of the amplifier, A biasing circuit arrangement (144) is also provided which employs bias control feedback to set the bias currents for the transistors. The biasing circuit arrangement takes as its input the current flowing at one of the electrodes (160) of one of the transistors.

    摘要翻译: 集成电路器件包括放大器级,其包括一对晶体管(134A,134B),其相应的基极或栅极连接在一起,以及相应的发射极或源极。 晶体管的相应的漏极或集电极电容耦合(166),以便在放大器的工作频率下被有效地短路。还提供偏置电路装置(144),其利用偏置控制反馈来设置偏置电流 晶体管。 偏置电路装置以其中一个晶体管的电极(160)中的一个流动的电流作为其输入。

    Network
    8.
    发明申请
    Network 失效
    网络

    公开(公告)号:US20050128008A1

    公开(公告)日:2005-06-16

    申请号:US10989896

    申请日:2004-11-16

    IPC分类号: H03J3/18 H03L7/00

    摘要: A variable capacitance network is disclosed, comprising a plurality of capacitance arms connected in parallel with each other between first and second terminals of the network. Each capacitance arm has a varactor and a series capacitor in series with the varactor A control input applies a common control signal to the junctions between the varactors and their associated series capacitors, to allow for simultaneous control of each varactor.

    摘要翻译: 公开了一种可变电容网络,包括在网络的第一和第二终端之间彼此并联连接的多个电容臂。 每个电容臂具有变容二极管和与变容二极管串联的串联电容器。控制输入端将通用控制信号施加到变容二极管及其相关串联电容器之间的接点,以允许同时控制每个变容二极管。

    REMOVING INTERFERING SIGNALS IN A BROADBAND RADIO FREQUENCY RECEIVER
    9.
    发明申请
    REMOVING INTERFERING SIGNALS IN A BROADBAND RADIO FREQUENCY RECEIVER 失效
    在宽带无线电频率接收机中删除干扰信号

    公开(公告)号:US20080231759A1

    公开(公告)日:2008-09-25

    申请号:US11688522

    申请日:2007-03-20

    IPC分类号: H03H7/01

    摘要: Various embodiments are directed to removing interfering signals in a broadband radio frequency (RF) receiver by implementing a silicon tuner arranged to replicate high quality factor (Q) performance without the advantages of using high Q components available for module tuners. In one or more embodiments, tuned filter elements within a broadband silicon tuner are reused to maximize the attenuation of unwanted signals while minimizing induced undesirable channel ripple. In various implementations, a number of tuned passive inductor/capacitor filter elements are combined as required such that filter elements for an unused frequency band are reconfigured to provide attenuation of and enhanced immunity to unwanted signals. Other embodiments are described and claimed.

    摘要翻译: 各种实施例旨在通过实施布置成复制高质量因子(Q)性能的硅调谐器而不使用可用于模块调谐器的高Q分量的优点来去除宽带射频(RF)接收机中的干扰信号。 在一个或多个实施例中,宽带硅调谐器内的调谐滤波器元件被重新使用以最大化不需要的信号的衰减,同时最小化诱导的不期望的信道纹波。 在各种实施方案中,根据需要组合多个调谐的无源电感器/电容器滤波器元件,使得针对未使用频带的滤波器元件被重新配置以提供衰减并增强对不想要的信号的抗扰性。 描述和要求保护其他实施例。

    Circuit arrangement
    10.
    发明申请
    Circuit arrangement 有权
    电路布置

    公开(公告)号:US20050134395A1

    公开(公告)日:2005-06-23

    申请号:US10989897

    申请日:2004-11-16

    IPC分类号: H03J3/18 H03B5/18

    CPC分类号: H03J3/185

    摘要: A circuit arrangement having a plurality of variable capacitance elements such as varactors is described, the varactors having associated electronic control means which controls the capacitance of the variable capacitance elements over a control range. The control range is such that for any particular variable capacitance element a complete variation from a lowest to a highest capacitance is obtained from only a portion of the control range.

    摘要翻译: 描述了具有多个可变电容元件(例如变容二极管)的电路装置,该变容二极管具有相关联的电子控制装置,其控制可变电容元件在一个控制范围内的电容。 控制范围使得对于任何特定的可变电容元件,仅从控制范围的一部分获得从最低电容到最高电容的完全变化。