Research Article
ANN Synthesis Model of Single-Feed Corner-Truncated Circularly Polarized Microstrip Antenna with an Air Gap for Wideband Applications
Table 2
Comparison of MLP-based synthesis model with different hidden layer configurations.
| Configuration of hidden layers | | Two hidden layers | | | Three hidden layers | | | | | | | | | Training time (seconds) | 606 | 871 | 1146 | 827 | 912 | 1074 |
| MRE () | | Training | 2.56 | 2.25 | 5.16 | 2.04 | 1.56 | 1.19 | Test | 3.37 | 2.30 | 5.66 | 1.41 | 1.55 | 1.35 | | Training | 7.82 | 4.12 | 3.88 | 2.87 | 2.05 | 1.29 | Test | 10.3 | 5.14 | 13.3 | 2.03 | 2.19 | 3.48 | ARE () | | Training | 0.491 | 0.473 | 0.754 | 0.288 | 0.206 | 0.190 | Test | 0.519 | 0.486 | 0.820 | 0.298 | 0.224 | 0.221 | | Training | 0.928 | 0.846 | 0.140 | 0.505 | 0.367 | 0.387 | Test | 0.968 | 0.871 | 0.141 | 0.540 | 0.403 | 0.415 | MSE (mm) | | Training | | | | | | | Test | | | | | | | | Training | | | | | | | Test | | | | | | |
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