Abstract
This paper presents a new modified method for the synthesis of non-uniform
linear antenna arrays. Based on the recently developed invasive weeds
optimization technique (IWO), the modified invasive weeds optimization
method (MIWO) uses the mutation process for the calculation of standard
deviation (SD). Since the good choice of SD is particularly important in
such algorithm, MIWO uses new values of this parameter to optimize the
spacing between the array elements, which can improve the overall
efficiency of the classical IWO method in terms of side lobe level (SLL)
suppression and nulls control. Numerical examples are presented and
compared to the existing array designs found in the literature, such as
ant colony optimization (ACO), particle swarm optimization (PSO), and
comprehensive learning PSO (CLPSO). Results show that MIWO method can be a
good alternative in the design of non-uniform linear antenna array.
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