公开(公告)号：US07859330B2

公开(公告)日：2010-12-28

申请号：US12421485

申请日：2009-04-09

申请人： Guangcai Zhou ,  Tung-Sheng Lin ,  Dennis Lai ,  Joseph Santoru ,  Ernest C. Chen ,  Shamik Maitra ,  Cecilia Comeaux

发明人： Guangcai Zhou ,  Tung-Sheng Lin ,  Dennis Lai ,  Joseph Santoru ,  Ernest C. Chen ,  Shamik Maitra ,  Cecilia Comeaux

IPC分类号： G01R19/00

CPC分类号： H04B17/0085 ,  H03F1/32 ,  H04B17/15

摘要： Systems and methods for characterizing amplifiers. A system for characterizing an amplifier in accordance with the present invention comprises a Gaussian signal source for generating a signal in the frequency domain, a notch filter, coupled to the Gaussian Noise source, wherein the notch filter has a notch at a specified frequency and a frequency bandwidth, the frequency bandwidth encompassing the specified frequency, an Inverse Fast Fourier Transform device, coupled to an output of the notch filter, a normalization device, coupled to the Inverse Fast Fourier Transform device, an amplifier under test, coupled to the normalization device, for amplifying the signal generated by the Gaussian signal source, and a measurement device, coupled to an output of the amplifier, for measuring a power output of the amplifier in the frequency bandwidth and a noise output at the specified notch frequency, and for calculating the ratio between the power output and the noise output.

摘要翻译： 表征放大器的系统和方法。 用于表征根据本发明的放大器的系统包括用于产生频域中的信号的高斯信号源，耦合到高斯噪声源的陷波滤波器，其中陷波滤波器具有指定频率的陷波和 频率带宽，包含指定频率的频率带宽，耦合到陷波滤波器的输出的反相快速傅立叶变换装置，耦合到快速傅立叶逆变换装置的归一化装置，被测放大器，耦合到归一化装置 ，用于放大由高斯信号源产生的信号，以及耦合到放大器的输出的测量装置，用于测量放大器在频率带宽中的功率输出和在指定陷波频率下的噪声输出，并用于计算 功率输出与噪声输出之间的比例。

公开(公告)号：US07535292B2

公开(公告)日：2009-05-19

申请号：US11870955

申请日：2007-10-11

申请人： Guangcai Zhou ,  Tung-Sheng Lin ,  Dennis Lai ,  Joseph Santoru ,  Ernest C. Chen ,  Shamik Maitra ,  Cecilia Comeaux

发明人： Guangcai Zhou ,  Tung-Sheng Lin ,  Dennis Lai ,  Joseph Santoru ,  Ernest C. Chen ,  Shamik Maitra ,  Cecilia Comeaux

IPC分类号： G01R19/00

CPC分类号： H04B17/0085 ,  H03F1/32 ,  H04B17/15

摘要： Systems and methods for characterizing amplifiers. A system for characterizing an amplifier in accordance with the present invention comprises a Gaussian signal source for generating a signal in the frequency domain, a notch filter, coupled to the Gaussian Noise source, wherein the notch filter has a notch at a specified frequency and a frequency bandwidth, the frequency bandwidth encompassing the specified frequency, an Inverse Fast Fourier Transform device, coupled to an output of the notch filter, a normalization device, coupled to the Inverse Fast Fourier Transform device, an amplifier under test, coupled to the normalization device, for amplifying the signal generated by the Gaussian signal source, and a measurement device, coupled to an output of the amplifier, for measuring a power output of the amplifier in the frequency bandwidth and a noise output at the specified notch frequency, and for calculating the ratio between the power output and the noise output.

摘要翻译： 表征放大器的系统和方法。 用于表征根据本发明的放大器的系统包括用于产生频域中的信号的高斯信号源，耦合到高斯噪声源的陷波滤波器，其中陷波滤波器具有指定频率的陷波和 频率带宽，包含指定频率的频率带宽，耦合到陷波滤波器的输出的反相快速傅立叶变换装置，耦合到快速傅立叶逆变换装置的归一化装置，被测放大器，耦合到归一化装置 ，用于放大由高斯信号源产生的信号，以及耦合到放大器的输出的测量装置，用于测量放大器在频率带宽中的功率输出和在指定陷波频率下的噪声输出，并用于计算 功率输出与噪声输出之间的比例。

公开(公告)号：US20090224824A1

公开(公告)日：2009-09-10

申请号：US12421485

申请日：2009-04-09

申请人： Guangcai Zhou ,  Tung-Sheng Lin ,  Dennis Lai ,  Joseph Santoru ,  Ernest C. Chen ,  Shamik Maitra ,  Cecilia Comeaux

发明人： Guangcai Zhou ,  Tung-Sheng Lin ,  Dennis Lai ,  Joseph Santoru ,  Ernest C. Chen ,  Shamik Maitra ,  Cecilia Comeaux

IPC分类号： G01R19/00

CPC分类号： H04B17/0085 ,  H03F1/32 ,  H04B17/15

摘要： Systems and methods for characterizing amplifiers. A system for characterizing an amplifier in accordance with the present invention comprises a Gaussian signal source for generating a signal in the frequency domain, a notch filter, coupled to the Gaussian Noise source, wherein the notch filter has a notch at a specified frequency and a frequency bandwidth, the frequency bandwidth encompassing the specified frequency, an Inverse Fast Fourier Transform device, coupled to an output of the notch filter, a normalization device, coupled to the Inverse Fast Fourier Transform device, an amplifier under test, coupled to the normalization device, for amplifying the signal generated by the Gaussian signal source, and a measurement device, coupled to an output of the amplifier, for measuring a power output of the amplifier in the frequency bandwidth and a noise output at the specified notch frequency, and for calculating the ratio between the power output and the noise output.

摘要翻译： 表征放大器的系统和方法。 用于表征根据本发明的放大器的系统包括用于产生频域中的信号的高斯信号源，耦合到高斯噪声源的陷波滤波器，其中陷波滤波器具有指定频率的陷波和 频率带宽，包含指定频率的频率带宽，耦合到陷波滤波器的输出的反相快速傅立叶变换装置，耦合到快速傅立叶逆变换装置的归一化装置，被测放大器，耦合到归一化装置 ，用于放大由高斯信号源产生的信号，以及耦合到放大器的输出的测量装置，用于测量放大器在频率带宽中的功率输出和在指定陷波频率下的噪声输出，并用于计算 功率输出与噪声输出之间的比例。

公开(公告)号：US20080129374A1

公开(公告)日：2008-06-05

申请号：US11870955

申请日：2007-10-11

申请人： Guangcai Zhou ,  Tung-Sheng Lin ,  Dennis Lai ,  Joseph Santoru ,  Ernest C. Chen ,  Shamik Maitra ,  Cecilia Comeaux

发明人： Guangcai Zhou ,  Tung-Sheng Lin ,  Dennis Lai ,  Joseph Santoru ,  Ernest C. Chen ,  Shamik Maitra ,  Cecilia Comeaux

IPC分类号： G01R19/00

CPC分类号： H04B17/0085 ,  H03F1/32 ,  H04B17/15

摘要： Systems and methods for characterizing amplifiers. A system for characterizing an amplifier in accordance with the present invention comprises a Gaussian signal source for generating a signal in the frequency domain, a notch filter, coupled to the Gaussian Noise source, wherein the notch filter has a notch at a specified frequency and a frequency bandwidth, the frequency bandwidth encompassing the specified frequency, an Inverse Fast Fourier Transform device, coupled to an output of the notch filter, a normalization device, coupled to the Inverse Fast Fourier Transform device, an amplifier under test, coupled to the normalization device, for amplifying the signal generated by the Gaussian signal source, and a measurement device, coupled to an output of the amplifier, for measuring a power output of the amplifier in the frequency bandwidth and a noise output at the specified notch frequency, and for calculating the ratio between the power output and the noise output.

摘要翻译： 表征放大器的系统和方法。 用于表征根据本发明的放大器的系统包括用于产生频域中的信号的高斯信号源，耦合到高斯噪声源的陷波滤波器，其中陷波滤波器具有指定频率的陷波和 频率带宽，包含指定频率的频率带宽，耦合到陷波滤波器的输出的反相快速傅立叶变换装置，耦合到快速傅立叶逆变换装置的归一化装置，被测放大器，耦合到归一化装置 ，用于放大由高斯信号源产生的信号，以及耦合到放大器的输出的测量装置，用于测量放大器在频率带宽中的功率输出和在指定陷波频率下的噪声输出，并用于计算 功率输出与噪声输出之间的比例。