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  1. #1
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    Load Pull for Differential PA?

    Dear all,

    I am a beginner.
    How to perform a load/source pull for differential PA? Do I need to use balun/transformer?

    Or a single ended configuration is sufficient to extract the optimum impedance then connect it in differential manner to get 3dB extra power?

    Please share.

    Thanks

    •   Alt9th January 2017, 15:50

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  2. #2
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    Re: Load Pull for Differential PA?

    No, you should use Balun.Differential Optimum Load will absolutely different than single ended.
    But later on, de-embedding of the Balun from Optimum Load Impedance will be quite hard because of phase relationships.



    •   Alt9th January 2017, 16:12

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  3. #3
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    Re: Load Pull for Differential PA?

    I am using Cadence spectre. Do you think I can use ideal balun?

    Thanks



    •   Alt9th January 2017, 16:18

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  4. #4
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    Re: Load Pull for Differential PA?

    In simulation, you won't need a balun, just a differentially connected load.



  5. #5
    Newbie level 6
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    Re: Load Pull for Differential PA?

    If you dont mind, can you show some visual of that.



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