International Journal of Antennas and Propagation / 2013 / Article / Tab 4

Research Article

Design of Fully Digital Controlled Shaped Beam Synthesis Using Differential Evolution Algorithm

Table 4

Computed 4-bit amplitudes and 5-bit phases for Case II of the design problem.

Algorithm Ring numberExcitationElements
1234567891011121314151617181920

DE 2Phase180.00 90.00123.75 180.00 180.00
Amp0.93750.06250.12500.50001.00000.31250.06250.50000.06251.00000.06250.31250.75000.62500.75000.18750.56250.06250.75000.9375
1Phase180.00 180.00180.00 168.75 112.50
Amp0.06250.06251.00001.00001.00000.06250.43751.00000.50000.3125

PSO 2Phase56.25 22.50 56.2556.25 45.00135.00 11.25 67.50 11.25
Amp0.68750.62500.81250.62500.62500.43750.37500.18750.56250.31250.56250.62500.43750.43750.25000.43750.81250.31250.50000.4375
1Phase45.0056.2511.2545.0033.75112.5078.7545.0067.50
Amp0.81250.56250.50000.56250.50000.25000.56250.75000.25000.5000

GA 2Phase
Amp0.18750.31250.18750.31250.25000.37500.43750.12500.06250.18750.06250.25000.50000.50000.43750.37500.50000.06250.06250.3125
1Phase
Amp0.12500.12500.31250.18750.06250.18750.18750.37500.25000.3125

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