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This paper proposes a methodology for modeling microwave devices based on Genetic Algorithms (GA). This technique allows electromagnetic parameters be related to the physical dimensions of device, making it easier to perform adjustment to obtain a certain response. To demonstrate the validity, the method was applied in double-H resonator bandpass filter and results were then compared with those offered...
This paper deals with a planar inductor design for optimal size reduction of z-source inverters. The smallest possible inductor size is realized through the utilization of the Finite Element method (FEM) and genetic algorithms. Operating condition of the Z-source inverter was set to a point such that it works with a smaller inductance value. We studied the reduction of radiated electromagnetic field...
The degree Δ-closest phylogenetic 2nd root problem (ΔCPR2) is an NP-hard problem concerning phylogenetic tree reconstruction from a graph representing the similarities of the species concerned. Here we present an approximation algorithm for this problem for any fixed Δ >; 3. When |V| >; 3Δ - 1, our algorithm yields an approximation ratio of max((Δ-2)/α, 2), where α >; 1 is a constant whose...
The present article deals with finding the best position of piezoelectric actuator for active vibration control of square plate with all-clamped edges using the genetic algorithm (GA) and developed optimization algorithm (DOA) base on controllability grammian. The controllability grammian is obtained using the modal force constants, the eigenvalues and eigenfunctions of all-clamped edges plate. The...
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