International Journal of Antennas and Propagation

Research Article

An Antenna Array Sidelobe Level Reduction Approach through Invasive Weed Optimization

Table 5

Excitation currents and maximum SLL of the 32-element LAA obtained by different algorithms.


Algorithm	(I₁, I₂, I₃, I₄, I₅, I₆, I₇, I₈, I₉, I₁₀, I₁₁, I₁₂, I₁₃, I₁₄, I₁₅, I₁₆, I₁₇, I₁₈, I₁₉, I₂₀, I₂₁, I₂₂, I₂₃, I₂₄, I₂₅, I₂₆, I₂₇, I₂₈, I₂₉, I₃₀, I₃₁, I₃₂)	Max SLL (dB)

IWO	0.3595, 0.2528, 0.2958, 0.3072, 0.3827, 0.5186, 0.5869, 0.6160, 0.7092, 0.7786, 0.8304, 0.8904, 0.9424, 0.9575, 1.0000, 0.9988, 0.9969, 1.0000, 0.9757, 0.9049, 0.8868, 0.8317, 0.7572, 0.7039, 0.6628, 0.5290, 0.4582, 0.4497, 0.3931, 0.2831, 0.1987, 0.3559	−31.0751
CS	0.2486, 0.2294, 0.2216, 0.2620, 0.3370, 0.3843, 0.5987, 0.4521, 0.6567, 0.7068, 0.6782, 0.8299, 0.7822, 0.8434, 0.9187, 0.8264, 0.8709, 0.9340, 0.8826, 0.9019, 0.7806, 0.7302, 0.6980, 0.6499, 0.6384, 0.4761, 0.4184, 0.4811, 0.3425, 0.3564, 0.2256, 0.3078	−29.3774
FA	0.3088, 0.3535, 0.2421, 0.2778, 0.2115, 0.5247, 0.5540, 0.5362, 0.6946, 0.4153, 0.9206, 0.7328, 0.7733, 0.6621, 0.8531, 0.9776, 0.6737, 0.8532, 0.8282, 0.6933, 0.6005, 0.7362, 0.4963, 0.7293, 0.4923, 0.3749, 0.4827, 0.4852, 0.2467, 0.4119, 0.3348, 0.1415	−26.0192
BBO	0.5337, 0.4577, 0.2699, 0.3218, 0.5073, 0.5301, 0.7161, 0.4816, 0.8820, 0.7761, 0.7917, 0.8377, 0.6430, 1.0000, 0.9200, 0.7889, 0.9439, 1.0000, 0.9507, 0.9818, 0.8549, 0.9857, 0.6930, 0.7569, 0.7569, 0.6903, 0.1542, 0.2614, 0.6717, 0.2748, 0.4760, 0.1863	−23.4108
PSO	0.4101, 1.0000, 1.0000, 0.1596, 0.5696, 1.0000, 1.0000, 0.4572, 1.0000, 0.8231, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 0.8257, 1.0000, 1.0000, 0.9728, 0.5698, 1.0000, 0.2918, 0.0373, 0.9013, 0.0004, 1.0000, 0.4027	−20.4785
Uniform	1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000, 1.0000	−13.2318