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  1. #1
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    How the capacitance varies as input power varies in a mmW RFIC PA?

    Hello, all

    I read that the input capacitance in a cascode cell varies as input power varies in a mmW RFIC.

    Could anyone explain me how this happens? Is it an effect of the Miller effect?

    Many thanks!

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  2. #2
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    Re: How the capacitance varies as input power varies in a mmW RFIC PA?

    Almost all intrinsic capacitors in a semiconductor device behave like varicap diodes.So reverse polarized but bias and signal amplitude dependent.
    Hence, it shouldn't be a surprise capacitor value is amplitude dependent if the amplitude is sufficiently high.


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