公开(公告)号：US20050062531A1

公开(公告)日：2005-03-24

申请号：US10668135

申请日：2003-09-22

申请人： George Schreyer ,  James Becker

发明人： George Schreyer ,  James Becker

IPC分类号： H03F1/32 ,  H03F1/26

CPC分类号： H03F1/3247

摘要： Apparatus and a corresponding method for predistorting an input signal applied to a radio frequency (RF) power amplifier, to compensate for amplifier distortion at high powers. The RF amplifier input and output signals are continuously monitored and difference signals are generated in an RF phase discriminator. The difference signals are converted to digital form and stored in a lookup table in the form of running averages of an RF amplifier gain compression value and an RF amplifier output phase value for each observed RF input power value. A predistorter module retrieves these values and predistorts the RF amplifier input by way of compensation.

摘要翻译： 用于对施加到射频（RF）功率放大器的输入信号进行预失真的相应方法，以补偿在高功率下的放大器失真。 RF放大器输入和输出信号被连续监视，并在RF鉴相器中产生差分信号。 差分信号被转换成数字形式并以每个观察到的RF输入功率值的RF放大器增益压缩值和RF放大器输出相位值的运行平均值的形式存储在查找表中。 预失真器模块检索这些值，并通过补偿预处理RF放大器输入。

公开(公告)号：US20070146098A1

公开(公告)日：2007-06-28

申请号：US11268413

申请日：2005-11-02

申请人： Ming-Jong Shiau ,  Phu Tran ,  Alex Chau ,  Mark Kintis ,  George Schreyer

发明人： Ming-Jong Shiau ,  Phu Tran ,  Alex Chau ,  Mark Kintis ,  George Schreyer

IPC分类号： H03H7/01

CPC分类号： H03H7/0115 ,  H03H7/1775 ,  H03H2001/0078

摘要： An LC filter structure and method for its fabrication, in which multiple shunt capacitors, multiple shunt inductors and multiple coupling inductors are printed on a metal layer formed on a thin dielectric substrate. The capacitors have first electrodes that are formed as spatially separated regions of the metal layer, and a common second electrode formed by a ground plane on the substrate. The shunt inductors are formed as spiral traces connected to the separated regions and to the ground plane, through conductive vias. The coupling inductors are similarly formed as spiral traces in the gaps between the separated regions, the ends of each coupling inductor being connected to respective adjacent regions of the metal layer.

摘要翻译： 一种用于其制造的LC滤波器结构及其制造方法，其中多个分流电容器，多个分流电感器和多个耦合电感器被印刷在形成在薄介电基片上的金属层上。 电容器具有形成为金属层的空间分离区域的第一电极和由基板上的接地平面形成的公共第二电极。 分流电感器通过导电通孔形成为连接到分离区域和接地平面的螺旋迹线。 耦合电感器类似地形成为分离区域之间的间隙中的螺旋迹线，每个耦合电感器的端部连接到金属层的各个相邻区域。