Agilent Technologies, Inc.

Keysight Technologies, Inc.

Jianjun Xu

David E Root

Jason M Horn

Daniel B Gunyan

Masaya Iwamoto

A method of modeling a nonlinear component includes providing a physical model for modeling a characteristic of the nonlinear component defined by a physical expression having a physical nonlinear function depending on variables and parameters of the nonlinear component; determining performance data for the characteristic; extracting global parameter values for the parameters based on the performance data; extracting local parameter values for the selected parameter, while keeping fixed the extracted global parameter values for the remaining parameters, based on the performance data corresponding to the characteristic using the physical expression; training an ANN function from the extracted local parameter values for the selected parameter depending on a variable; and determining a hybrid model for modeling the characteristic of the nonlinear component defined by a modified physical expression including the physical nonlinear function, the remaining parameters, and the trained ANN function depending on the variable in place of the selected parameter.

System and method for modeling nonlinear component for use in circuit design

A method and system are provided for generating a nonlinear simulation model of a device under test (DUT). The method and system include receiving large-signal nonlinear waveform data based on responses of the DUT to input signals, determining a set of first dynamical variables and a set of second dynamical variables from the nonlinear waveform data, calculating values of second dynamical variables, providing nonlinear constitutive relations as functions of the first dynamical variables and the calculated values of the second dynamical variables, and compiling the nonlinear simulation model of the DUT using the identified nonlinear constitutive relations.

Method and system for generating nonlinear simulation model

A method for determining input tones required to produce a desired output includes the step of extracting a linearization of a spectral map representing a device under test (DUT) that i) is under drive of a large signal having one or more fundamental frequencies with associated amplitudes and phases, and ii) produces an approximation of a desired output having at least one unwanted spectral component. The method includes the further step of using an inverse of the extracted linearization to determine the input tones required to produce the desired output under a given load condition.

Method and apparatus for determining a response of a DUT to a desired large signal, and for determining input tones required to produce a desired output

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Petaluma, CA, United States of America

Jianjun Xu