公开(公告)号：US20080037993A1

公开(公告)日：2008-02-14

申请号：US11875332

申请日：2007-10-19

申请人： DANIEL KUCHTA ,  Mark Ritter ,  Albert Ruehli ,  Christian Schuster

发明人： DANIEL KUCHTA ,  Mark Ritter ,  Albert Ruehli ,  Christian Schuster

IPC分类号： H04B10/00 ,  H03H7/38

CPC分类号： H04B10/43 ,  H01L2224/48091 ,  H01L2924/19104 ,  H01P5/02 ,  H01L2924/00014

摘要： An RF device includes a signal layer disposed over a ground plane having radio frequency (RF) transmission lines configured and dimensioned to provide impedance matching along the RF lines. A shield is formed as a part of the RF lines and disposed below the RF choke of a DC current supply to form an intermediate capacitance between the choke and the shield to control parasitic effects.

摘要翻译： RF设备包括设置在具有射频（RF）传输线的接地平面上的信号层，射频（RF）传输线被配置和设计尺寸以提供沿着RF线的阻抗匹配。 屏蔽形成为RF线的一部分并且设置在DC电流源的RF扼流圈下方，以在扼流圈和屏蔽之间形成中间电容，以控制寄生效应。

公开(公告)号：US20050123302A1

公开(公告)日：2005-06-09

申请号：US10727817

申请日：2003-12-04

申请人： Daniel Kuchta ,  Mark Ritter ,  Albert Ruehli ,  Christian Schuster

发明人： Daniel Kuchta ,  Mark Ritter ,  Albert Ruehli ,  Christian Schuster

IPC分类号： H01P5/02 ,  H04B10/00 ,  H04B10/02 ,  H04B10/04 ,  H04B10/06 ,  H04B10/28

CPC分类号： H04B10/43 ,  H01L2224/48091 ,  H01L2924/19104 ,  H01P5/02 ,  H01L2924/00014

摘要： An RF device includes a signal layer disposed over a ground plane having radio frequency (RF) transmission lines configured and dimensioned to provide impedance matching along the RF lines. A shield is formed as a part of the RF lines and disposed below the RF choke of a DC current supply to form an intermediate capacitance between the choke and the shield to control parasitic effects.

摘要翻译： RF设备包括设置在具有射频（RF）传输线的接地平面上的信号层，射频（RF）传输线被配置和设计尺寸以提供沿着RF线的阻抗匹配。 屏蔽形成为RF线的一部分并且设置在DC电流源的RF扼流圈下方，以在扼流圈和屏蔽之间形成中间电容，以控制寄生效应。

公开(公告)号：US20070211840A1

公开(公告)日：2007-09-13

申请号：US11356636

申请日：2006-02-17

申请人： Ibrahim Elfadel ,  Hao Huang ,  Albert Ruehli

发明人： Ibrahim Elfadel ,  Hao Huang ,  Albert Ruehli

IPC分类号： G06F17/50 ,  H04L23/00

CPC分类号： G06F17/5036

摘要： Methods and apparatus are provided for analyzing transmission lines with decoupling of connectors and other circuit elements. According to one aspect of the invention, circuits with one or more parasitic elements are analyzed by partitioning at least one of the parasitic elements in a transverse manner; identifying a plurality of subcircuits each comprised of partitioned circuit elements from the plurality of transmission lines and one or more parasitic elements in a given path; wherein each of the subcircuits is associated with a path in the circuit; performing a waveform relaxation analysis between each of the subcircuits; and repeating the step of performing the waveform relaxation analysis using waveforms determined in a previous iteration until convergence to a resultant waveform has occurred. The circuit can optionally further comprise one or more transmission lines which would also be partitioned in a transverse manner.

摘要翻译： 提供了用于分析连接器和其他电路元件去耦的传输线的方法和装置。 根据本发明的一个方面，通过以横向方式分隔至少一个寄生元件来分析具有一个或多个寄生元件的电路; 识别多个子电路，每个子电路由来自所述多个传输线的分隔电路元件和给定路径中的一个或多个寄生元件组成; 其中每个子电路与电路中的路径相关联; 在每个子电路之间进行波形弛豫分析; 并且重复使用在前一次迭代中确定的波形执行波形弛豫分析的步骤，直到发生对所得波形的收敛。 电路可以可选地进一步包括一个或多个也将以横向分隔的传输线。

公开(公告)号：US20060235672A1

公开(公告)日：2006-10-19

申请号：US11108392

申请日：2005-04-18

申请人： Albert Ruehli ,  Chuanyi Yang

发明人： Albert Ruehli ,  Chuanyi Yang

IPC分类号： G06F17/50

CPC分类号： G06F17/5036

摘要： A model for modeling electromagnetic response in a conductor and in dielectric, a method of modeling the electromagnetic response in the conductor and dielectric and a program product therefor. Coupled supplies (delayed capacitive-current-controlled current sources or delayed inductance-voltage-controlled voltage sources) are low pass filtered in an electromagnetic model for the particular medium, e.g., a Partial Element Equivalent Circuit (PEEC) model for a conductor or dielectric. Thus, high frequency model instabilities are substantially reduced or eliminated.

公开(公告)号：US20070198233A1

公开(公告)日：2007-08-23

申请号：US11356637

申请日：2006-02-17

申请人： Ibrahim Elfadel ,  Hao Huang ,  Albert Ruehli

发明人： Ibrahim Elfadel ,  Hao Huang ,  Albert Ruehli

IPC分类号： G06F17/10

CPC分类号： G06F17/13 ,  G01R27/28

摘要： Methods and apparatus are provided for predicting the number of iterations needed for a computed Transversal Waveform Relaxation solution to achieve a given level of accuracy. In this manner, a Transversal Waveform Relaxation algorithm is disclosed that provides full automation. According to one aspect of the invention, a circuit is analyzed having transmission lines. One or more transmission line parameters of the circuit are obtained, as well as the intrinsic behavior, E(ω), and strength of coupling, N(ω), of each of the transmission lines. In addition, a relative error bound is obtained for the circuit based on the intrinsic behavior, E(ω), and strength of coupling, N(ω), of the transmission lines and a predefined error threshold. The process then iterates until the relative error bound satisfies the error threshold.

摘要翻译： 提供了方法和装置，用于预测计算出的横向波形松弛解决方案所需的迭代次数以达到给定的准确度。 以这种方式，公开了提供完全自动化的横向波形松弛算法。 根据本发明的一个方面，分析具有传输线的电路。 获得电路的一个或多个传输线参数，以及每个传输线的固有行为E（ω）和耦合强度N（ω）。 此外，基于传输线的内在行为E（ω）和耦合强度N（ω）以及预定义的误差阈值，获得电路的相对误差界限。 然后，该过程将重复，直到相对误差界限满足错误阈值。

公开(公告)号：US20050177325A1

公开(公告)日：2005-08-11

申请号：US10776716

申请日：2004-02-11

申请人： Alina Deutsch ,  Peter Feldmann ,  Albert Ruehli ,  Howard Smith

发明人： Alina Deutsch ,  Peter Feldmann ,  Albert Ruehli ,  Howard Smith

IPC分类号： G01R15/00 ,  G01R31/28

CPC分类号： G01R31/2813

摘要： A system and method for analyzing a circuit with transmission lines includes determining which sources influence each of a plurality of transmission lines, based on coupling factors. Transmission line parameters are computed based on the sources, which influence each transmission line. A transient response or frequency response is analyzed for each transmission line by segmenting each line to perform an analysis on that line. The step of analyzing is repeated using waveforms determined in a previous iteration until convergence to a resultant waveform has occurred.

摘要翻译： 用于使用传输线分析电路的系统和方法包括基于耦合因素来确定哪些源影响多条传输线中的每一条。 传输线参数是基于影响每条传输线的源计算的。 通过分割每行来对每条传输线分析瞬态响应或频率响应，以对该行进行分析。 使用在先前迭代中确定的波形重复分析步骤，直到已经发生收敛到合成波形。