Thinning of concentric two-ring circular array antenna using fire fly algorithm
نویسندگان
چکیده
منابع مشابه
Determination of the Optimal Design of Three- Ring Concentric Circular Antenna Array Using Evolutionary Optimization Techniques
In this paper the optimal design for maximum sidelobe level (SLL) reduction of three-ring concentric circular antenna array (CCAA) is determined using a novel Particle Swarm Optimization (PSO) technique namely Craziness based Particle Swarm Optimization (CRPSO). Real coded Genetic Algorithm (RGA) is adopted for the comparative optimization. The present text assumes nonuniformly excited array an...
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Biogeography based optimization (BBO) is a novel stochastic force based on the science of biogeography. Biogeography is the schoolwork of geographical allotment of biological organisms. BBO make use of migration operator to share information between the problem solutions. The problem solutions are called as habitats and sharing of features is called migration. In this paper, BBO algorithm is de...
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Biogeography based optimization (BBO) is a new stochastic force based on the science of biogeography. Biogeography is the schoolwork of geographical allotment of biological organisms. BBO utilizes migration operator to share information between the problem solutions. The problem solutions are known as habitats and sharing of features is called migration. In this paper, BBO algorithm is develope...
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A concentric circular antenna array (CCAA) consists of elements positioned on the periphery of imaginary circles on a plane having a common centre and different radii. The simplest way to feed the elements of such an array is to use uniform excitation. However, with a non-uniform excitation profile, considerable reduction of the side lobe level (SLL) may be achieved at the cost of the added com...
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In this article, a hybrid optimization method has been proposed consisting of modified ant colony systems (ACSs) and constrained nonlinear programming (NLP) to solve the problems of null synthesis of concentric rings circular array antenna consist of parallel center feeding dipoles elements with two complex nonlinear optimization problems. In the first problem, a synthesis of concentric circula...
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ژورنال
عنوان ژورنال: Scientia Iranica
سال: 2012
ISSN: 1026-3098
DOI: 10.1016/j.scient.2012.06.030