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  1. #1
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    Reflection/S11 for attn

    When exciting an attn. with high frequecy energy/waves. What is the significance of S11? I know it measures reflection at the input port, but is that telling me the operating freqeucies at which the attn. will radiate (since none of the input wave is reflected)?
    Thank you
    Last edited by budder8818; 4th October 2010 at 22:04. Reason: Spelling

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  2. #2
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    Re: Reflection/S11 for attn

    yes, you are right. Better S11, less reflected, so more power radiate.


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