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SWR ratio #'s

Discussion in 'Beginner Electronics' started by Ernie Werbel, Apr 15, 2007.

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  1. Ernie Werbel

    Ernie Werbel Guest

    Ok I have been learning some more about SWR. At work, I test RF/microwave
    components such as couplers, power dividers, terminations, etc. So I deal
    with such things as "the VSWR must be less than 1:1.15".

    Now, up until recently this has just been looking at numbers on a screen and
    saying "pass/fail" but in a course I am currently in, Electronic
    Communication Systems, I beleive I am gaining an understanding of this...

    If the input impedance is 50 ohms and the maximum deviation ratio on the
    output is 1:1.15 for example, that means that the output impedance cannot be
    greater than 1.15 * 50 = 57.5 ohms? Does this also apply in the reverse
    direction and must be within the range 42.5 to 57.5 as well?

    Thanks in advance for any response. Just trying to learn more about a
    subject I love
  2. Otto Sykora

    Otto Sykora Guest

    Does this also apply in the reverse
    basicaly yes
  3. Jack

    Jack Guest

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