s parameter matrix analysis for 2 port network

Discussion in 'Homework Help' started by kua022, Oct 26, 2010.

  1. kua022

    Thread Starter New Member

    Oct 26, 2010
    2
    0
    Dear,

    Can you please provide me an example of matlab codes for the matrix analysis.

    Best Regards
    Kafil
     
  2. Papabravo

    Expert

    Feb 24, 2006
    10,144
    1,791
    I'm not sure what you are asking. Matlab has built-in functions for doing most of the things you might want to do with a matrix. When it comes to s-parameters you seldom have a single matrix with constant values. What you have is a matrix where each element is a non-trivial function of frequency. In practice we characterize devices across a frequency range of interest and use that information from individual elements of the s-parameter matrix to design circuits.

    I suppose there might be some use to matrix operations if you could figure out a way to represent the data appropriately. It's beyond my capability.
     
  3. kua022

    Thread Starter New Member

    Oct 26, 2010
    2
    0
    in matlab if i would like to write the follwing equation then how would i write..please help..
    S22=i/2(1/z -z)sin(nkd)

    S21= 1/kd cos^-1(I meant cos inverse)
     
  4. Papabravo

    Expert

    Feb 24, 2006
    10,144
    1,791
    That's pretty much the way you write thins with appropriate definitions for z, n, k and d. There is no implied multiplication, and if they are vectors then the result is also a vector.
     
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