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In last decade, a number of microstrip patch antennas based on fractal geometry have been proposed. Recently, some applications employing the fractal geometry as boundary of microstrip antennas are also proposed. In this paper, Minkowski curve has been used as boundary of a square split ring antenna. The simulated and experimental results of the proposed antenna have shown dual band behavior. Also...
Harmony in variety i.e. unity without similarity is a concept inspired from ancient times. Thinkers propose a team approach based on the same concept for problem solving i.e. using a combined group of solvers to resolve a difficult problem. Neural network ensemble (NNE) is a concept based on the same approach. Multiple artificial neural networks (ANNs) are trained for the same dataset to give the...
Artificial Neural Networks have been recently used for the design and analysis of fractal antennas. The performance of various types of networks has not been yet explored for these antennas. This paper evaluates the performance of three types of neural networks: Back Propagation Neural Network (BPNN), Radial Basis Function Neural Network (RBFNN), and Generalized Regression Neural Networks (GRNN) for...
In this paper, Genetic Algorithms (GA) has been applied to calculate the optimized parameters of Elliptical Microstrip antenna. The inputs to the problem are thickness of the substrate, eccentricity, dielectric constant and even mode frequency. The output obtained is the optimized semi- major axis length ‘a’ from which the other parameters i.e. semi-minor axis length and odd mode frequency are calculated...
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