Research Article
Design of Fully Digital Controlled Shaped Beam Synthesis Using Differential Evolution Algorithm
Table 2
Computed 4-bit amplitudes and 5-bit phases for Case I of the design problem.
| Algorithm
|
Ring number | Excitation | Elements | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| DE |
2 | Phase | | | 33.75 | | | 180.00 | | | 180.00 | | | | | 180.00 | 168.75 | 180.00 | | | | | Amp | 0.0625 | 0.0625 | 0.0625 | 0.3125 | 0.8125 | 1.0000 | 0.1875 | 0.7500 | 0.1250 | 0.7500 | 0.1250 | 0.0625 | 0.0625 | 0.1250 | 0.9375 | 1.0000 | 1.0000 | 0.8125 | 0.1250 | 0.6875 |
1 | Phase | | 180.00 | 168.75 | | 180.00 | 180.00 | 180.00 | 180.00 | 157.50 | 180.00 | — | — | — | — | — | — | — | — | — | — | Amp | 0.0625 | 1.0000 | 1.0000 | 0.0625 | 1.0000 | 0.0625 | 1.0000 | 1.0000 | 0.1875 | 0.0625 | — | — | — | — | — | — | — | — | — | — |
| PSO |
2 | Phase | | 180.00 | | | | | | | 56.25 | | | 56.25 | | | | 11.25 | | 146.25 | | 157.50 | Amp | 0.1875 | 0.6875 | 0.6875 | 0.0625 | 0.5000 | 0.9375 | 0.4375 | 0.3750 | 0.5000 | 0.6250 | 0.5000 | 0.5000 | 0.3750 | 0.7500 | 1.0000 | 0.6875 | 0.1250 | 0.2500 | 0.1875 | 0.4375 |
1 | Phase | | | 22.50 | 33.75 | | 112.50 | 11.25 | 11.25 | 45.00 | | — | — | — | — | — | — | — | — | — | — | Amp | 0.9375 | 0.6875 | 0.8750 | 0.5000 | 0.4375 | 0.3750 | 0.2500 | 0.3750 | 0.6875 | 0.7500 | — | — | — | — | — | — | — | — | — | — |
| GA |
2 | Phase | 101.25 | | 135.00 | | | | | | 11.25 | | 180.00 | 112.50 | | 11.25 | | | | 56.25 | | | Amp | 1.0000 | 0.2500 | 0.5000 | 0.9375 | 0.8125 | 0.6875 | 0.6875 | 0.2500 | 0.3125 | 0.1250 | 0.5625 | 0.1250 | 0.8125 | 0.5625 | 0.8125 | 0.3750 | 0.5000 | 0.2500 | 0.3125 | 0.6250 |
1 | Phase | | 11.25 | | 146.25 | 45.00 | | 11.25 | 11.25 | 56.25 | 180.00 | — | — | — | — | — | — | — | — | — | — | Amp | 0.6875 | 0.3125 | 0.8125 | 0.0625 | 0.1875 | 0.8125 | 0.9375 | 0.2500 | 0.6875 | 0.5000 | — | — | — | — | — | — | — | — | — | — |
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