公开(公告)号：US06930564B2

公开(公告)日：2005-08-16

申请号：US10655097

申请日：2003-09-04

Applicant: Jan Verspecht

Inventor： Jan Verspecht

IPC: G01R31/319 ,  H01P1/32

CPC classification number: G01R31/3191

Abstract: Apparatus for providing a controllable impedance at a reference plane in a circuit comprises a unidirectional transmission line loop having first and second input/output terminals. The first input/output terminal is connected to the reference plane and an amplifier is located in the transmission line loop to amplify signals passing in a direction from the second input/output terminal to the first input/output terminal. A variable tuned circuit couples the second input/output terminal to a terminating device.

Abstract translation: 用于在电路中的参考平面处提供可控阻抗的装置包括具有第一和第二输入/输出端子的单向传输线环路。 第一输入/输出端子连接到参考平面，并且放大器位于传输线环路中，以放大从第二输入/输出端子到第一输入/输出端子的方向上的信号。 可变调谐电路将第二输入/输出端子耦合到端接装置。

公开(公告)号：US20070216394A1

公开(公告)日：2007-09-20

申请号：US11337949

申请日：2006-01-24

Applicant: Jan Verspecht

Inventor： Jan Verspecht

IPC: G01R23/00

CPC classification number: G01R23/20

Abstract: A novel method is described that enables the measurement of the phase of the spectral components generated by an harmonic phase reference generator without using a calibrated sampling oscilloscope. First one uses a vector network analyzer to measure the output reflection coefficient of an harmonic phase transfer standard and of the harmonic phase reference generator that needs to be characterized. Next one connects the transfer standard to a microwave receiver and one measures the spectral components that are generated by the transfer standard. One then connects the harmonic phase reference generator to be characterized to the microwave receiver. The spectral components of the harmonic phase reference generator to be characterized are calculated by using the spectrum of the transfer standard as measured by the receiver. The spectrum of the harmonic phase reference generator to be characterized as measured by the receiver and the known spectrum of the transfer standard.

Abstract translation: 描述了一种新颖的方法，其能够测量由谐波相位参考发生器产生的频谱分量的相位，而不使用校准的采样示波器。 首先使用矢量网络分析仪来测量谐波相位传输标准和需要表征的谐波相位参考发生器的输出反射系数。 接下来将传输标准连接到微波接收器，并且测量传输标准产生的频谱分量。 然后将要表征的谐波相位参考发生器连接到微波接收器。 通过使用由接收机测量的传输标准的频谱来计算要表征的谐波相位参考发生器的频谱分量。 谐波相位参考发生器的频谱由接收机测量并且传输标准的已知频谱进行表征。

公开(公告)号：US06943561B2

公开(公告)日：2005-09-13

申请号：US10252807

申请日：2002-09-23

Applicant: Jan Verspecht

Inventor： Jan Verspecht

IPC: G01R31/26 ,  G01R27/28 ,  G01R31/28 ,  H01L29/80 ,  G01R27/02

CPC classification number: G01R31/2822

Abstract: Radio Frequency (RF) signal network measurement data of a device under test are acquired by exciting the device using a modulated RF excitation signal, while measuring RF signal data at the signal ports of the device, measuring bias signal data, and processing the RF signal data and the bias signal data, providing the RF signal network measurement data of the device. By acquiring bias signal data, in particular by measuring variations in the bias signals, a more accurate and reliable characterization of the non-linear behavior of the device under test can be provided. A Non-linear Network Measurement System (NNMS) is arranged for acquiring the RF and biasing signal data and characterizing the non-linear signal behavior of a device under test.

Abstract translation: 通过使用调制的RF激励信号激励设备，同时测量设备的信号端口处的RF信号数据，测量偏置信号数据和处理RF信号来获取被测器件的射频（RF）信号网络测量数据 数据和偏置信号数据，提供设备的射频信号网络测量数据。 通过获取偏置信号数据，特别是通过测量偏置信号的变化，可以提供对被测器件的非线性行为的更准确和可靠的表征。 非线性网络测量系统（NNMS）用于获取RF和偏置信号数据，并表征被测设备的非线性信号行为。

公开(公告)号：US06812714B2

公开(公告)日：2004-11-02

申请号：US10253045

申请日：2002-09-24

Applicant: Jan Verspecht ,  Ewout Vandamme

Inventor： Jan Verspecht ,  Ewout Vandamme

IPC: G01R1148

CPC classification number: G01R27/28 ,  G01R27/06 ,  G01R31/2822

Abstract: An apparatus for collecting RF signal measurement data at signal ports of an RF and microwave device-under-test (DUT). The apparatus comprises means for measuring incident and reflected RF signals at the signal ports of the DUT. Synthesizer means for generating RF signals at a fundamental frequency and higher harmonics. Tuner means arranged for loading the DUT under different impedance conditions for the fundamental frequency and higher harmonics, and means for feeding the RF signals of the synthesizer means to the signal ports of the DUT. The apparatus may form part of a Non-linear Network Measurement System (NNMS).

Abstract translation: 一种用于在RF和微波器件测试（DUT）的信号端口处收集RF信号测量数据的装置。 该装置包括用于测量DUT的信号端口处的入射和反射的RF信号的装置。 用于产生基频和高次谐波的RF信号的合成器装置。 调谐器装置被布置成用于在不同的阻抗条件下加载用于基频和高次谐波的DUT，以及用于将合成器装置的RF信号馈送到DUT的信号端口的装置。 该装置可以形成非线性网络测量系统（NNMS）的一部分。

公开(公告)号：US10387592B1

公开(公告)日：2019-08-20

申请号：US12787736

申请日：2010-05-26

Applicant: Jan Verspecht

Inventor： Jan Verspecht

IPC: G06F17/50 ,  G06G7/62

Abstract: An envelope behavioral model is developed and used in a system and method that simulates and predicts outputs of a non-linear component. An analyzer generates a test signal which is provided as input to the non-linear component. Model kernels representative of static and dynamic parts of the model are extracted from an output of the non-linear component responsive to the test signal. The dynamic part represents memory effects of the non-linear component. The model kernels are then used by a simulator to predict the output of the non-linear component responsive to signals of a modulation type.

公开(公告)号：US08914271B2

公开(公告)日：2014-12-16

申请号：US13307311

申请日：2011-11-30

Applicant: Jan Verspecht

Inventor： Jan Verspecht

IPC: G06F17/50 ,  H04B17/00 ,  H03F3/20

CPC classification number: H04B17/391 ,  H03F1/3247 ,  H03F3/195 ,  H03F3/20 ,  H03F3/245 ,  H03F2200/336

Abstract: A method and system for predistorting signals provides a test signal to model a non-linear component. Model kernels representative of static and dynamic parts of the model are extracted from an output of the non-linear component responsive to the test signal. The dynamic part represents memory effects of the non-linear component. The model kernels are then used to calculate an inverse memory model component model. An input signal is predistorted using the inverse memory model.

Abstract translation: 用于预失真信号的方法和系统提供测试信号以对非线性分量进行建模。 根据测试信号，从非线性分量的输出中提取代表模型的静态和动态部分的模型内核。 动态部分表示非线性分量的记忆效应。 然后使用模型内核来计算反向内存模型组件。 使用反相存储器模型对输入信号进行预失真。

公开(公告)号：US07295961B2

公开(公告)日：2007-11-13

申请号：US10712706

申请日：2003-11-12

Applicant: David E. Root ,  Nicholas B. Tuffilaro ,  John Wood ,  Jan Verspecht

Inventor： David E. Root ,  Nicholas B. Tuffilaro ,  John Wood ,  Jan Verspecht

IPC: G06F17/50 ,  G06F17/10 ,  G01R13/00

CPC classification number: G06F17/5036

Abstract: The present invention includes a method for generating a model of a circuit having an input port and an output port. The method determines an amplitude for current leaving the output port at a frequency ωk when a signal that includes a carrier at ωj modulated by a signal Vj(t) is input to the input port, wherein ωk is a harmonic of ωj. The determined amplitude is used to determine values for a set of constants, ak, such that a function fk(V,ak) provides an estimate of the current, Ik(t), leaving the output port at a frequency ωk when a signal having the form V ⁡ ( t ) = Re ⁢ ∑ k = 1 , H ⁢ V k ⁡ ( t ) ⁢ exp ⁡ ( jω k ⁢ t ) is input to the input port. Here Vk(t) is a component of a set of values V. The fk(V,ak) are used to provide a simulator component adapted for use in a circuit simulator.

公开(公告)号：US20060235638A1

公开(公告)日：2006-10-19

申请号：US11339401

申请日：2006-01-26

Applicant: Jan Verspecht

Inventor： Jan Verspecht

IPC: G06F19/00

CPC classification number: G01R23/20 ,  G01R27/28

Abstract: Novel excitation signals are specifically designed for testing a nonlinear device-under-test such that all of the desired intermodulation products are measurable after being converted by a sampling frequency convertor. This is achieved by using excitation frequencies which are equal to an integer multiple of the sampling frequency of the sampling frequency convertor plus or minus small frequency offsets. The offset frequencies are carefully choosen such that the frequencies of all the significant intermodulation products after being converted by the sampling frequency convertor are within the bandwidth of the sampling frequency convertor output.

Abstract translation: 新的激励信号被专门设计用于测试非线性器件测试，使得所有的期望的互调产物在被采样频率转换器转换之后是可测量的。 这是通过使用等于采样频率转换器的采样频率加或减小频率偏移的整数倍的激励频率来实现的。 仔细选择偏移频率，使得由采样频率转换器转换后的所有有效互调产物的频率在采样变频器输出的带宽内。

公开(公告)号：US20090174415A1

公开(公告)日：2009-07-09

申请号：US11969895

申请日：2008-01-05

Applicant: Jan Verspecht ,  Fabien De Groote

Inventor： Jan Verspecht ,  Fabien De Groote

IPC: G01R27/06

CPC classification number: G01R35/005 ,  G01R27/28

Abstract: A calibration procedure for a real-time load-pull system whereby the signal passes through at least one of the tuners of said real-time load-pull system. A calibration standard is connected to the test ports and an electromagnetic wave signal passes through one of the tuners before passing through the wave sensing structure. After having passed the wave sensing structure the electromagnetic wave signal interacts with the calibration element. This results in a reflected and eventually a transmitted electromagnetic wave signal that pass through the wave sensing structures of the system. The sensed electromagnetic wave signals are measured by means of a receiver. The procedure is repeated with different calibration standards. Then a line element is connected to the test ports and, one after the other, a set of calibration standards, a power meter and a harmonic phase reference generator are connected to the output tuner, each time sending a signal and measuring the wave signals. The measured data is used to calculate the error coefficients of the real-time load-pull system.

Abstract translation: 用于实时负载牵引系统的校准程序，由此信号通过所述实时负载牵引系统的至少一个调谐器。 校准标准连接到测试端口，电磁波信号在通过波检测结构之前通过其中一个调谐器。 在通过波检测结构之后，电磁波信号与校准元件相互作用。 这导致反射并最终传播通过系统的波感测结构的电磁波信号。 感测的电磁波信号通过接收器测量。 以不同的校准标准重复该程序。 然后将线路元件连接到测试端口，并且一个接一个地将一组校准标准，功率计和谐波相位参考发生器连接到输出调谐器，每次发送信号并测量波形信号。 测量数据用于计算实时负载牵引系统的误差系数。

公开(公告)号：US07282926B1

公开(公告)日：2007-10-16

申请号：US11446923

申请日：2006-06-05

Applicant: Jan Verspecht ,  Jean-Pierre Teyssier

Inventor： Jan Verspecht ,  Jean-Pierre Teyssier

IPC: G01R27/04 ,  G01R27/32 ,  H01P5/18

CPC classification number: G01R27/32 ,  H01P5/04

Abstract: An impedance tuning measurement setup and method for characterizing high frequency devices-under-test whereby one inserts an extremely low loss directive coupling structure between the terminal of the device-under-test and that part of the impedance tuner that generates the variable impedance. One or both coupled arm outputs of the directive coupling structure are connected to the inputs of a broadband RF receiver. By using the extremely low loss directive coupling structure one avoids the loss of energy caused by the distributed directional couplers or the resistive bridges used in prior art. The low loss directive coupling structure is formed by a small piece of conductive wire, which is inserted into the electro-magnetic waveguiding structure that guides the RF signals towards and from the DUT terminals. The ends of the small piece of conductive wire are connected to the center conductors of two electromagnetic waveguiding structures, which act as the coupling arms.

Abstract translation: 用于表征被测器件的高频器件的阻抗调谐测量设置和方法，由此在被测器件的端子与产生可变阻抗的阻抗调谐器的部分之间插入极低的损耗指令耦合结构。 指令耦合结构的一个或两个耦合臂输出连接到宽带RF接收器的输入。 通过使用极低损耗指令耦合结构，可以避免由现有技术中使用的分布式定向耦合器或电阻桥引起的能量损失。 低损耗指令耦合结构由一小块导线形成，该导线被插入到电磁波导结构中，以将RF信号朝向和从DUT端子引导。 小导线的端部连接到两个用作耦合臂的电磁波导结构的中心导体。