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. 2019 Nov 29;9:17918. doi: 10.1038/s41598-019-53878-9

Figure 8.

Figure 8

Convergence study using the DGTD method (a): for the rectangular shaped antenna (for CMA-ES results, the corresponding parameters can be found in Table 1) using coarse mesh with 3000 cells with fourth order polynomial P4 order (blue curve) and with finer mesh size (147 000 cells) with second order polynomial P2 order (purple curve). (b): convergence results for the cylindrical shaped antenna using the data shown in Table 2 for the CMA-ES results using different mesh sizes and/or types, different polynomial orders.