TABLE 4.
Variable Number of Electrodes
| Mobile phone - 915 MHz | |||
|---|---|---|---|
| Head no electrodes | Set 1 19 electrodes/leads | Set 2 32 electrodes/leads | |
| Net input power (W) | 0.25 | 0.25 | 0.25 |
| Power dissipated (W) | 0.19 | 0.21 | 0.21 |
| Radiation efficiency | 21.9% | 17.2% | 17.1% |
| Impedance (Z) | 64.08 + j124.33 | 67.84 + j129.18 | 68 + j129.35 |
| Peak 1 g average SAR (W/kg) | 0.82 | 0.86 | 0.86 |
| Peak 10 g average SAR (W/kg) | 0.44 | 0.53 | 0.54 |
| Whole-head SAR (W/kg) | 0.015 | 0.016 | 0.016 |
Notes. Head model with 19 and 32 EEG electrodes leads, with leads bundled as in Set 1. RF-field source was mobile phone at 915 MHZ. SARs are normalized to net input power equal to 0.25 W.