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  3. How to evaluate the large-signal stability of power amplifiers...

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How to evaluate the large-signal stability of power amplifiers?

iccb0309
iccb0309 over 1 year ago

Hi, everyone,

I am a student learning  to use Cadence' s suite of tools. I wonder how to evaluate the large-signal stability of power amplifier using Cadence' s design tools.

I know that Keysight's ADS software offers a method called WSprobe for assessing the large-signal stability of power amplifiers. But I am also interested in whether Cadence's suite of tools provides a similar functionality or if there are alternative, more effective methods for large-signal stability assessment. I have found that the Kf method is not suitable for our complex circuit, so I am seeking alternative solutions to ensure the stability of our circuits.

If such tools are available in Cadence, I also want to know the detailed information on how to use them, as well as their advantages and limitation. If there are no similar tools within Cadence's offerings, I would also like to know if there are any alternative suggestions or techniques that can help us effectively assess the large-signal stability of power amplifiers using Cadence tools.

Thanks a lot for help!

Regards,

Cai

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  • Tawna
    Tawna over 1 year ago

    We don't yet support the Winslow stability probe.   You may want to look at hb/hbstb  analysis.  HB is your large signal analysis, hbstb measures stability in the presence of the large signal. 

    1. The documentation (pdf format) is located in your software hierarchy in the doc directory:

    <path_to_software>/lnx86/doc/spectreRFinExplorer/spectreRFinExplorer.pdf

    2. Depending on the version of software you are using, we have the Doc Assistant viewer.  Run the cda command from here:

    <path_to_Spectre23.1>/lnx86/tools.lnx86/bin/cda

    3. (The easiest in my opinion, if you have access).   Below is a link to the documentation on Cadence Online Support.   

    Spectre Circuit Simulator and Accelerated Parallel Simulator RF Analysis in ADE Explorer User Guide -- Frequency Domain Analyses: Harmonic Balance - HBSTB Options  

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  • Tawna
    Tawna over 1 year ago

    We don't yet support the Winslow stability probe.   You may want to look at hb/hbstb  analysis.  HB is your large signal analysis, hbstb measures stability in the presence of the large signal. 

    1. The documentation (pdf format) is located in your software hierarchy in the doc directory:

    <path_to_software>/lnx86/doc/spectreRFinExplorer/spectreRFinExplorer.pdf

    2. Depending on the version of software you are using, we have the Doc Assistant viewer.  Run the cda command from here:

    <path_to_Spectre23.1>/lnx86/tools.lnx86/bin/cda

    3. (The easiest in my opinion, if you have access).   Below is a link to the documentation on Cadence Online Support.   

    Spectre Circuit Simulator and Accelerated Parallel Simulator RF Analysis in ADE Explorer User Guide -- Frequency Domain Analyses: Harmonic Balance - HBSTB Options  

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