## 3 Results
### Calculation of the Deposited Power at the Tips of the Pair of Parallel Generic Leads  
The two coupled leads were placed at different relative positions and excited by the eight orthogonal electric fields, given by the rows of the Hadamard matrix. The obtained SAR distribution was calculated using full-wave simulations, as presented in Figure 6. The absorbed power at the tips was estimated by integrating the volume around them (see Section 2.1). Figure 7 shows the deviation in dB between the calculated power at the tips of the pair of leads for the different placements and excitations in comparison to the single lead. It can be noticed that the shorter the distance between the two generic leads, the lower the induced power at their tips in comparison to the induced power of the single lead. The different uncapped tip offset of the wires (leads) has a negligible effect on the deposited power.  
Furthermore, the standard Tier 3 approach was taken for the various pair cases using the complex addition of the product of the TF of each single lead and the incident electric field for the different excitations. The estimated deposited power was compared to the respective numerical one (obtained by the full-wave simulations) and the deviation in dB is presented in Figure 8 in the case of 1 = 0 mm at different distances. It is shown that the use of the TFs of the single leads and the incident electric fields overestimate the induced power, and this overestimation becomes higher as the wires become closer, exceeding 6 dB.  
Figure 6: The SAR distribution at the tip of (**A**) the single wire and at the tips of the pair of wires for d = 6 mm and (**B**) 1 = 0 mm, (**C**) 1 = 5 mm, (**D**) 1 = 10 mm and (**E**) 1 = 15 mm when they are excited by the electrical field shown in the first row of the Hadamard matrix.  
Figure 7: The deviation in dB of the deposited power at the tips of the two generic leads compared to the single lead case for different relative positions between them (see Figure 1a).  
The corresponding distribution of SAR around the tips of the pair for l = 0 mm and for different distances is shown in Figure S1 in the Supplementary Material.  
The absorbed power at the tips of the lead pairs was then calculated using the modified Tier 3 process as defined in Equations (3) and (4) for different relative positions. Figure 9 shows the 1:1 plot of the power assessed by the proposed method and the corresponding power calculated from the full-wave simulations for the various lead pair configurations. The maximum deviation between them is less than 0.86 dB, which is the combined standard uncertainty (see Section 3.4). The red and black dashed lines show the combined standard uncertainty (k = 1) and the expanded uncertainty (k = 2), respectively.  
Figure 8: The deviation in dB between the estimated deposited power using the TF of the single generic lead compared to the corresponding one obtained from the full-wave simulations for l = 0 mm and different distances between the generic leads.  
Figure 9: A 1:1 plot of the deposited power estimated by Equation (3) and the corresponding numerically calculated power obtained through full-wave simulations for the different relative positions between the generic leads of the pair. The blue solid line corresponds to the equivalence of the two quantities. The red and black dashed lines show the combined standard uncertainty (k = 1) and the expanded uncertainty (k = 2), respectively.