In MIMO systems, to decouple multiple antennas ECC is desired. ECC=0 means the antennas are completely decoupled, while ECC=1 means they are essentially short circuited.
Naveen Kumar
Following are the steps to plot ECC vs Freq plot in HFSS calculated from S parameters:
- In project manager window right click on results and then select 'Output Variables'.
- Provide Name to the parameter and then insert the expression: (mag(conjg(S(1,1))*S(1,2)+conjg(S(2,1))*S(2,2)))^2/((1-mag(S(1,1))^2-mag(S(2,1))^2)*(1-mag(S(2,2))^2-mag(S(1,2))^2))
- Click on Add and then click on Done.
- Then again right click on results --> Create Modal Solution Data Report --> Rectangular Plot --> Under Category option select 'Output Variables' --> Select Name of parameter that you have given in 2nd step.
- Click on New Report
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Abdulaziz Dessalew
Well done!!!
For better accuracy, ECC computed from radiation pattern is highly recommended. Can you help in this regard?
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Aman Kumar Rai
but what is the formula to calculate channel capacity of MIMO antenna?? please help
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