公开(公告)号：US20060226856A1

公开(公告)日：2006-10-12

申请号：US11093456

申请日：2005-03-30

申请人： Kenneth Wong ,  David Blackham ,  Joel Dunsmore

发明人： Kenneth Wong ,  David Blackham ,  Joel Dunsmore

IPC分类号： G01R27/28

CPC分类号： G01R27/28

摘要： In one embodiment, a vector network analyzer (VNA) comprises a plurality of ports for coupling to a device under test (DUT), at least one reference receiver for measuring signals associated with the DUT, and logic for processing measurement data from the at least one reference receiver to compensate for transmission line effects, wherein the logic for processing evaluates a function, of several controllable variables, that is a sum of multiple transmission line models, wherein each of the controllable variables is related to a respective transmission line length associated with a corresponding transmission line model.

公开(公告)号：US07054780B2

公开(公告)日：2006-05-30

申请号：US10939861

申请日：2004-09-13

申请人： Joel Dunsmore ,  Doug Bender ,  David Blackham

发明人： Joel Dunsmore ,  Doug Bender ,  David Blackham

IPC分类号： G06F19/00

CPC分类号： G01R35/005 ,  G01R27/28

摘要： In one embodiment, a method of operating a network analyzer, comprises applying a stimulus signal on at least one port of the network analyzer for provision to a device under test (DUT) within a test fixture coupled to the network analyzer; generating measurement data from the DUT in response to the stimulus signal on at least one port of the network analyzer; and generating an amplitude response of the DUT across a frequency range, wherein a port extension module of the network analyzer automatically applies loss compensation to the amplitude response in a manner that is non-linearly related to frequency according to at least one controllable parameter.

公开(公告)号：US20060074582A1

公开(公告)日：2006-04-06

申请号：US10939861

申请日：2004-09-13

申请人： Joel Dunsmore ,  Doug Bender ,  David Blackham

发明人： Joel Dunsmore ,  Doug Bender ,  David Blackham

IPC分类号： G06F19/00

CPC分类号： G01R35/005 ,  G01R27/28

摘要： In one embodiment, a method of operating a network analyzer, comprises applying a stimulus signal on at least one port of the network analyzer for provision to a device under test (DUT) within a test fixture coupled to the network analyzer; generating measurement data from the DUT in response to the stimulus signal on at least one port of the network analyzer; and generating an amplitude response of the DUT across a frequency range, wherein a port extension module of the network analyzer automatically applies loss compensation to the amplitude response in a manner that is non-linearly related to frequency according to at least one controllable parameter.

摘要翻译： 在一个实施例中，一种操作网络分析仪的方法包括在网络分析仪的至少一个端口上施加刺激信号，以提供耦合到网络分析器的测试夹具内的被测器件（DUT）; 响应于所述网络分析器的至少一个端口上的所述刺激信号从所述DUT产生测量数据; 以及在频率范围内产生所述DUT的振幅响应，其中所述网络分析仪的端口扩展模块根据至少一个可控参数以与频率非线性相关的方式自动对所述振幅响应应用损耗补偿。

公开(公告)号：US20060161369A1

公开(公告)日：2006-07-20

申请号：US11028159

申请日：2005-01-03

申请人： Kenneth Wong ,  David Blackham ,  James Liu ,  Keith Anderson

发明人： Kenneth Wong ,  David Blackham ,  James Liu ,  Keith Anderson

IPC分类号： G01R35/00 ,  G06F19/00

CPC分类号： G01R27/28 ,  G01R35/005

摘要： In one embodiment, a method comprises storing parameters that are related to switch error correction terms of a vector network analyzer (VNA), and applying a calibration process of a TRL group of calibration processes to the VNA to generate calibration measurements, wherein the calibration process generates calibration measurements, calculates a switch error correction matrix using the stored parameters and a subset of the calibration measurements, and applies the switch error correction matrix to calibration measurements before solving for eight-systematic error terms associated with the calibration process.

摘要翻译： 在一个实施例中，一种方法包括存储与矢量网络分析仪（VNA）的切换误差校正项相关的参数，以及将校准过程的TRL组的校准过程应用于VNA以产生校准测量，其中校准过程 生成校准测量，使用存储的参数和校准测量的子集计算开关误差校正矩阵，并在求解与校准过程相关的八个系统误差项之前将开关误差校正矩阵应用于校准测量。

公开(公告)号：US20050096859A1

公开(公告)日：2005-05-05

申请号：US10699526

申请日：2003-10-31

申请人： Shigetsune Torin ,  Kenneth Wong ,  David Blackham

发明人： Shigetsune Torin ,  Kenneth Wong ,  David Blackham

IPC分类号： G01R29/26

CPC分类号： G01R29/26

摘要： Noise power is measured within one or more designated frequency bands of an applied signal. The measurement includes frequency translating the applied signal by a set of equally spaced frequencies to form a corresponding set of intermediate frequency signals, measuring the noise in at least two measurement bands of each of the intermediate frequency signals that are separated by the frequency spacing of the equally spaced frequencies, and determining the noise power in the designated frequency band of the applied signal based on the noise measurements.

摘要翻译： 在施加的信号的一个或多个指定频带内测量噪声功率。 测量包括通过一组等间隔的频率对所施加的信号进行频率转换，以形成对应的一组中频信号，测量每个中频信号的至少两个测量带中的噪声，该频率间隔由 基于噪声测量确定施加信号的指定频带中的噪声功率。

公开(公告)号：US07161358B1

公开(公告)日：2007-01-09

申请号：US11374502

申请日：2006-03-13

申请人： Hassan Tanbakuchi ,  Loren Cole Betts ,  David Blackham

发明人： Hassan Tanbakuchi ,  Loren Cole Betts ,  David Blackham

IPC分类号： G01R27/02

CPC分类号： G01R27/04

摘要： An impedance analyzer includes a reference signal, a first converter a first coupler, a second converter, a second coupler, a modification circuit, a reference signal detector, and a reflected signal detector. The first coupler couples the reference signal to the first converter. The first converter produces a reference intermediate frequency signal. The second coupler couples a reflected signal to the second converter. The second converter produces a reflected intermediate frequency signal. A reflection coefficient for a device under test is determined by using a reflected value detected by the reflected signal detector and a reference value detected by the reference signal detector. In a first operating mode of the impedance analyzer, the reflected intermediate frequency signal is forwarded directly to the reflected signal detector. In a second operating mode of the impedance analyzer, the modification circuit operates on the reference intermediate frequency signal to produce an adjustment signal that is combined with the reflected intermediate frequency signal before a resulting signal is forwarded to the reflected signal detector.

摘要翻译： 阻抗分析器包括参考信号，第一转换器，第一耦合器，第二转换器，第二耦合器，修改电路，参考信号检测器和反射信号检测器。 第一耦合器将参考信号耦合到第一转换器。 第一转换器产生参考中频信号。 第二耦合器将反射信号耦合到第二转换器。 第二转换器产生反射中频信号。 通过使用由反射信号检测器检测的反射值和由参考信号检测器检测的参考值来确定被测器件的反射系数。 在阻抗分析仪的第一操作模式中，反射的中频信号被直接转发到反射信号检测器。 在阻抗分析仪的第二操作模式中，修改电路对参考中频信号进行操作，以产生与所反射的中频信号组合的调整信号，然后将结果信号转发到反射信号检测器。