Fig 1.
Geometry and structure of the MIMO mobile terminal antenna.
Fig 2.
Toroidal metamaterials.
Fig 3.
Comparison of S-parameter and gain simulation of antennas.
(Unit: dBi).
Fig 4.
Radiation patterns at1.9 GHz, 2.1 GHz, 2.6 GHz, and 3.5 GHz.
Fig 5.
Fabrication of miniaturized MIMO mobile terminal antenna.
Fig 6.
Simulated and measured S-parameters comparison of miniaturized MIMO mobile terminal antenna.
Table 1.
Performance comparison of miniaturized mobile terminal MIMO antenna.
Fig 7.
Human head modeling.
Table 2.
Human tissue dielectric parameters.
Fig 8.
SAR distribution in the scalp comparison before and after antenna miniaturized (Unit: W/kg).
Fig 9.
SAR distribution in the skull comparison before and after antenna miniaturized (Unit: W/kg).
Fig 10.
SAR distribution in the cerebrum comparison before and after antenna miniaturized (Unit: W/kg).
Fig 11.
SAR distribution in the cerebellum comparison before and after antenna miniaturized (Unit: W/kg).
Fig 12.
SAR distribution in the brainstem comparison before and after antenna miniaturized (Unit: W/kg).
Table 3.
Peak SAR values of different head tissues at different frequencies.
Fig 13.
Variations in SAR for individual organizations.