“The miniaturization of the MIMO mobile terminal antenna could effectively mitigate the absorption of radiation by head tissues, thereby presenting a novel strategy for electromagnetic radiation protection.”
SAR distribution in the skull before and after antenna miniaturization.
At 1.9 GHz, 2.1 GHz, 2.6GHz and 3.5 GHz
(Click to expand.)
MIMO: Multiple-Input Multiple-Output.
From China. Open Access.
https://microwavenews.com/papers/novel-radiation-protection-method-mimo-mobile-terminal