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Bode Plots & High Pass, Low Pass, Band Stop and Pass Frequen

  1. Feb 20, 2016 #1
    1. The problem statement, all variables and given/known data
    Hi,

    I just need some confirmation on 3 questions

    H(s) = 1/(s+1)^2

    1. I was asked to calculate the poles and zeros. I believe

    zeros: none
    poles: 2 (or p1,2) = -1

    2. I was also asked to calculate the slope of the magnitude response was w -> 0
    Here is my sketched graph

    2016-02-20 20.17.13.jpg

    From my pic, it shows that as w -> 0, H(s) -> 0.


    3. What type of filter response does this network exhibit.
    I believe it will be a Low Pass because as

    s->0, H(s) -> 1 and as s-> infinity, H(s) -> 0?

    Does this reasoning make it a low pass filter, high pass, band stop or band pass?

    Any help is appreciated
     
  2. jcsd
  3. Feb 20, 2016 #2

    Tom.G

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    Science Advisor

    According to your graph, what frequencies pass thru with the least attenuation?
     
  4. Feb 21, 2016 #3

    rude man

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    Homework Helper
    Gold Member

    Your Bode plot is good, and I can only second TomG's rhetorical question.
     
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