Table 1.
Electrical properties of the materials considered in the simulation.
Figure 1.
The head and antenna model for SAR calculation.
Figure 2.
The structure of the TSRRs.
Figure 3.
Arrays of TSRRs.
Figure 4.
Fabricated TSRRs structure for the SAR measurement.
Figure 5.
Materials measured at the resonant frequency are double negative: a) negative permittivity and b) negative permeability.
Figure 6.
Modeled transmission spectra of the TSRRs plane in the yz plane.
Figure 7.
Comparison on SAR simulation and measurement results without the inclusion of TMMs.
Figure 8.
Measurement of the SAR values at the cheek position a) without a metamaterial and b) with a metamaterial.
Figure 9.
Measurement of the SAR values at the tilt position a) without a metamaterial and b) with a metamaterial.
Figure 10.
Simulated SAR value of the antenna with the TMMs attachment in the cheek position.
Figure 11.
Measured SAR of the antenna with the TMMs attached in the cheek position.
Figure 12.
SAR comparisons at the different positions between an antenna without TSRRs and an antenna with TSRRS.