How to calculate TARC and CCL for 2x2 MIMO antenna array

Hi to all,

I want to to calculate the performance parameters like ECC, Total Active Reflection Coefficient (TARC), and Channel capacity Loss (CCL) of a 2x2 mimo antenna array using the S-Parameters.

However, I know the formula of ECC , But i dont know the relationship to Calculate TACR and CCL. Please help me in calculating these paramenters.


Thanks in advance.