+ Post New Thread
Results 1 to 2 of 2
  1. #1
    Newbie level 1
    Points: 377, Level: 4

    Join Date
    Apr 2016
    Posts
    1
    Helped
    0 / 0
    Points
    377
    Level
    4

    Calculation of radiated power density in CST

    Hi, I have to calculate the power density radiated from a grid of holes in a waveguide.
    I have set up the time domain simulation like this:
    Waveguide is made of PEC, open boundary conditions (add space). Two waveguide ports.
    I defined a plane at the distance where I want the calculation and set a power monitor at the interest frequency.
    I have put the source at port 1, mode 1. I have tried to use both the default signal and a sine step. I used the post processing to scale this signal to 100 W.
    Then I use the postprocessing to get the maximum value of the power on the plane. I assume this is in W/m2. My problem is that I get a value which is 10 times smaller than the measured one. Somebody has suggestions? Am I doing something wrong?

    •   AltAdvertisment

        
       

  2. #2
    Newbie level 2
    Points: 334, Level: 3

    Join Date
    Nov 2016
    Posts
    2
    Helped
    1 / 1
    Points
    334
    Level
    3

    Re: Calculation of radiated power density in CST

    Hello,

    As I can imagine, for the real measurements you use only one feed at the end of waveguide? Try to delete or turn off the second waveguide port in CST.



--[[ ]]--