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I have a question on the phase of a frequency response

  1. Mar 7, 2015 #1
    Hello, I'm currently studying for an exam and came across a question I cant seem to figure out. How exactly do we go about calculating the phase of a frequency response. Here is the question, it for part A) iii. GW0cMMa.png
    Here are the answers to the other parts and the sketch of the magnitude:
    zfJSUDp.png
    I know you have to add the phases of the H1(w) and H2(w) to get the overall phase but I cant seem to figure out how to get the phase of each one. Any help is appreciated thanks.
     
  2. jcsd
  3. Mar 8, 2015 #2
    There's a seperate forum for homework problems and the like, so, in the future, you should try to use that instead.

    For some frequency ##\omega##, ##H_1(e^{j\omega})## and ##H_2(e^{j\omega})## are just a couple of complex numbers, so what is ##\arg(e^{-j2\omega})## and ##\arg(4)##?
     
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