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MIMO Antenna Performance Metrics


MIMO Antenna Performance Metrics

Several parameters are used to evaluate MIMO antenna systems.

Envelope Correlation Coefficient

ECC measures correlation between antenna signals.

ECC formula using radiation patterns:

Ļ = |∬ F1(Īø,Ļ†) · F2(Īø,Ļ†) dĪ©|²

For good MIMO performance:

ECC < 0.05

Channel Capacity Loss

CCL represents reduction in data capacity.

Closs = −log2|ĪØ|

Total Active Reflection Coefficient

TARC represents combined reflection of all antenna ports.

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