Increasing performance of planar inductors used in broadband applications
    1.
    发明申请
    Increasing performance of planar inductors used in broadband applications 有权
    增加宽带应用中使用的平面电感器的性能

    公开(公告)号:US20040189422A1

    公开(公告)日:2004-09-30

    申请号:US10456224

    申请日:2003-06-06

    Abstract: Increasing performance of planar inductors used in broadband applications is described. In one implementation, an apparatus includes a high Quality factor (Q) value spiral planar inductor etched directly into a printed circuit board. A ferrite structure is attached to the printed circuit board and located in proximity to the high Q value spiral planar inductor. The ferrite structure increases the Q of spiral planar inductors, but without the inconvenience and expense of a wire wound terroidal inductors. Various shaped ferrite structures may be used in conjuction with the spiral planar inductors. Additionally, in certain implementations, the ferrite structures are configured to rotate about axis permitting the inductors to be tuned, even after components have been installed on a printed circuit board.

    Abstract translation: 描述了在宽带应用中使用的平面电感器的性能的提高。 在一个实施方案中,装置包括直接蚀刻到印刷电路板中的高品质因数(Q)值螺旋平面电感器。 铁氧体结构附着在印刷电路板上并位于高Q值螺旋平面电感器附近。 铁氧体结构增加了螺旋平面电感器的Q,但没有线缠绕的电感器的不便和费用。 各种形状的铁氧体结构可以与螺旋平面电感器结合使用。 此外,在某些实施方案中,铁氧体结构被配置为围绕允许电感器调谐的轴线旋转,即使在组件已经被安装在印刷电路板上之后。

    INDUCTOR AND DECOUPLING STRUCTURES FOR FILTERS AND DESIGN METHOD THEREOF

    公开(公告)号:WO2003084295A3

    公开(公告)日:2003-10-09

    申请号:PCT/US2003/009965

    申请日:2003-03-31

    Abstract: Inductor topologies for filters used in broadband applications are described. In one implementation, an apparatus, such as an interface module includes a printed circuit board (102) and a filter (104). The filter includes a generally circular high Quality factor (Q) value spiral planar inductor (106) etched directly into the printed circuit board (102). The generally circular high Q value spiral planar inductor (106) is configured to operate in a broadband application. Other implementations involve the use of decoupling structures (120) with respect to the planar inductors as well as a design methodology for the filters.

    APPARATUS, METHODS AND ARTICLES OF MANUFACTURE FOR LINEAR SIGNAL MODIFICATION
    6.
    发明申请
    APPARATUS, METHODS AND ARTICLES OF MANUFACTURE FOR LINEAR SIGNAL MODIFICATION 审中-公开
    用于线性信号修改的装置,方法和制造物品

    公开(公告)号:WO2004034567A2

    公开(公告)日:2004-04-22

    申请号:PCT/US2003/031936

    申请日:2003-10-08

    CPC classification number: H03F1/0266 H03F1/0277

    Abstract: Apparatus, method and article of manufacture are shown for linear signal modification. An input signal is modified by providing one or more non-linear current sources and regulating at least one of the one or more current sources to output a signal based on one or more of the input signal characteristics. The modification of the output signal includes both amplification and attenuation.

    Abstract translation: 示出了用于线性信号修改的设备,方法和制造物品。 通过提供一个或多个非线性电流源并且调节一个或多个电流源中的至少一个以基于一个或多个输入信号特性输出信号来修改输入信号。 输出信号的修改包括放大和衰减。

    Bias circuit for power amplifier operated as a digital to analog converter
    10.
    发明公开
    Bias circuit for power amplifier operated as a digital to analog converter 审中-公开
    数字模拟转换器

    公开(公告)号:EP1585215A1

    公开(公告)日:2005-10-12

    申请号:EP05102746.4

    申请日:2005-04-07

    CPC classification number: H03F1/302 H03F3/72 H03F2200/18

    Abstract: An apparatus and method for biasing a power amplifier circuit operating as a Digital to Analog Converter (DAC) are described. The bias circuit comprises a first transistor with a reference voltage coupled to its base terminal, a second transistor coupled to the emitter terminal of the first transistor at its collector terminal, and a third transistor with its base terminal coupled to the first and second transistors, and to an input signal.

    Abstract translation: 描述用于偏置作为数模转换器(DAC)工作的功率放大器电路的装置和方法。 偏置电路包括具有耦合到其基极端子的参考电压的第一晶体管,在其集电极端子处耦合到第一晶体管的发射极端子的第二晶体管,以及其基极端子耦合到第一和第二晶体管的第三晶体管, 和输入信号。

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