Keysight.Genesys.2022

    (W5309B) PathWave RF Synthesis (Genesys) Core + System

        EM_Link – Layout Effects in Spectrasys

        Spectrasys AM / AM and AM / PM Amplifier Modelling

        Spectrasys Frequency Multipliers

        Spectrasys Frequency Dividers

        System Simulation/Models

        Non-Linear MaxOrder parameter

        Vendor Parts Library

        Defect and Bug Fixes

    (W5300B) PathWave RF Synthesis (Genesys) Core

        Python Script

        Monte Carlo

        MATLAB Script

    Known Issues

    Licensing and Installation

(W5309B) PathWave RF Synthesis (Genesys) Core + System

EM_Link – Layout Effects in Spectrasys

    This feature brings the ability for RF system designers to incorporate layout effects due to board parasitics into their system-level simulations. This can be done both during prototyping and later for verification of the final design, as long as a layout is available. It is recommended to use Keysight EMPro and RFPro for this workflow, but it can also work with third-party tools.

    Added two new examples to demonstrate this feature:

        Layout Modeling 28GHz TX.wsv

        Layout Modeling Two Stage Cascade.wsv

    For more information, see Spectrasys Layout Modeling.

Spectrasys AM / AM and AM / PM Amplifier Modelling

    AM to AM modeling is now supported in Spectrasys for the following models:

        RFAMP

        RFAMP_HO

        RFAMP_IP2

        NonLin

        NonLin_HO

        VarAmp

    The method of data entry can use data directly from Keysight Vector Network Analyzers, without reformatting the data.

    S-Parameter based nonlinear models like SDATA_NL, SDATA_NL_HO, SDATA_NLI do not support the AM to AM feature.

    The NonLinearModelingMode parameter is used to enable the AM to AM capability.

        The default nonlinear parameter mode supports user-entered nonlinear parameters like P1dB, PSat, and so on.

        When the Compression Curve option is selected the following AM to AM parameters are enabled:

            AM_AM_PinPwr – This is the corresponding vector of input power into the device in dBm.

            AM_AM_Data – This is the AM to AM data vector.

            AM_PM_Data – This is the AM to PM data vector.

            AM_AM_OverrideOddIPn – By default, the third-order intercept is being extracted from the data using equations derived by our Vector Network Analyzer (VNA) engineers.

    Added a new example for this feature:

        AM to AM PM VNA XParams.wsv

    For more information, see AM to AM and AM to PM.

Spectrasys Frequency Multipliers

    Frequency multipliers are enhanced to support rich spurious response simulation even when spurious responses are very close in power level to the main signal being multiplied. See the Frequency Multiplier model for additional information.

    A new parameter MixOrderMax is added to the frequency multiplier model to allow users the maximum mixing order of the spurious responses they want to simulate.

Spectrasys Frequency Dividers

    Fixed some defects regarding the SSB decomposition into its AM and PM components for Frequency Dividers were addresses.

System Simulation/Models

    Added new parameter to RFAMP model to specify the order of IM products and harmonics to be generated. This can be used to overwrite the System Analysis order setting on select parts as desired.

Non-Linear MaxOrder parameter

    The following nonlinear models now support the MaxOrder parameter that will limit the maximum intermod and harmonic order created by the model. As a default, the model will use whatever order is listed in the System Analysis. The maximum simulation order for a model can never exceed the Maximum Order specified on the System Analysis. For example, if you want to simulate 5th order intermods and harmonics you cannot do so just by changing the order of the single model. Rather you can change the Maximum Order on the System Analysis to 5 or greater. In the model, as a default, it will use the System Analysis maximum order. The model MaxOrder will restrict the order even more if desired. Here is a list of supported models:

        RFAmp

        RFAmpHO

        NonLin

        NonLinHO

        RFAmp_IP2

        SData_NL

        SData_NL_HO

        SData_NLI

        VarAmp

        ATTN_NonLinear

        Switch_NonLinear

        SDSwitch1

        SDSwitch2

        SDSwitch3

        SDSwitch4

        SDSwitch6

        SDSwitch8

Vendor Parts Library

    Latest library from X-Microwave

        New layout symbols showing the size and physical design of parts.

    Latest SELECT+ library from Modelithics

        New simulation-ready sample of the Modelithics COMPLETE library. Please contact Modelithics for instructions on how to use the full version with Genesys2022

Defect and Bug Fixes

    Fixed an issue with EM Co-simulation used in conjunction with nonlinear devices whose operating points are a function of the DC solution of the EM Co-sim. The Momentum DC solution was incorrectly being modified.

    Corrected phase noise for the RFAMP_IP2 model.

    Fixed issue with phase noise at negative frequencies.

    Fixed issue with equations in Text Balloons not working properly for older workspaces that were being automatically migrated.

    Compression measurements (COMP, and CCOMP) now work for the Circuit Link and X-Parameter models.

    The OIP3_OneTone and IIP3_OneTone measurements now provide an estimation of the IP3 for Circuit Link and X-Parameter models. The 2F1-F1 intermod products are not available in a Harmonic Balance simulation and therefore cannot be used to predict IP3 for a Circuit Link part. However, the 3rd harmonic can be used to provide a less accurate estimation which is better than providing no estimation.

    The Volterra/Harmonic Balance selection logic for Circuit Link has been updated and has an improved user flow.