N. Tapaswi Yallaparagada

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In this paper, the method of nullifying the radiation pattern of a symmetrical linear antenna array in a particular direction is propounded using Particle Swarm Optimization with Constriction Factor Approach (PSOCFA). Single or multiple wide nulls are achieved by optimum perturbations of elements current amplitude weights to have either symmetric nulls(More)
In this paper, the method of imposing of nulls in the radiation pattern of an antenna array is hashed out using Real coded Genetic Algorithm (RGA). Circular array antennas lying on x-y plane is assumed. The array is assumed to have the maximum radiation along positive z-axis. Single and multiple nulls are imposed by optimizing the current amplitude(More)
A novel approach based on the real coded genetic algorithm (RGA) is proposed to improve nulling performance of time modulated linear antenna arrays. The RGA adjusts the excitation amplitude of each radiating element to place deep nulls in the desired direction. Various results are presented to show the advantages of this approach considering one and(More)
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