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Signal flow graph for two-port network

  1. Feb 25, 2014 #1
    Hi, this is part of an application note entitled "Low-Noise Amplifier Stability Concept to Practical Considerations" from Maxim.
    Could you help me with the question in the picture? Thanks.

    Source: http://www.maximintegrated.com/app-notes/index.mvp/id/1849

    https://www.physicsforums.com/attachment.php?attachmentid=67016&stc=1&d=1393322023
     
  2. jcsd
  3. Feb 25, 2014 #2

    Baluncore

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    Science Advisor

    Can you please give us a little more information.
    Which figure or diagram are you referring to ?
    What is your actual question ?
     
  4. Feb 25, 2014 #3
    Thank you. I thought I figured it out.
    My confusion was from why the left diagram is equal to the right one in Figure 2.4. I was told that node a2 doesn't depend on the input bs and therefore to change from left diagram to the right one all I need is to calculate b2 as a function of bs.
     
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