Radiation Beam Pattern Synthesis of Concentric Circular Antenna Arrays Using Hybrid Approach Based on Cuckoo Search

2018 ◽  
Vol 66 (9) ◽  
pp. 4563-4576 ◽  
Author(s):  
Geng Sun ◽  
Yanheng Liu ◽  
Zhaoyu Chen ◽  
Shuang Liang ◽  
Aimin Wang ◽  
...  
Keyword(s):  
Antenna Arrays ◽  
Hybrid Approach ◽  
Cuckoo Search ◽  
Beam Pattern ◽  
Pattern Synthesis ◽  
Radiation Beam ◽  
Circular Antenna Arrays

scholarly journals Cuckoo search optimization for linear antenna arrays synthesis

2013 ◽  
Vol 10 (3) ◽  
pp. 371-380 ◽  
Author(s):  
Haffane Ahmed ◽  
Hasni Abdelhafid
Keyword(s):  
Antenna Arrays ◽  
Search Algorithm ◽  
Cuckoo Search ◽  
Microstrip Antennas ◽  
Cuckoo Search Algorithm ◽  
Breeding Strategy ◽  
Pattern Synthesis ◽  
Flight Behaviour ◽  
Search Optimization ◽  
Cuckoo Search Optimization

A recently developed metaheuristic optimization algorithm, the Cuckoo search algorithm, is used in this paper for the synthesis of symmetric uniformly spaced linear microstrip antennas array. Cuckoo search is based on the breeding strategy of Cuckoos augmented by a Levy flight behaviour found in the foraging habits of other species. This metaheuristic is tested on amplitude only pattern synthesis and amplitude and phase pattern synthesis. In both case, the objective, is to determinate the optimal excitations element that produce a synthesized radiation pattern within given bounds specified by a pattern mask.

scholarly journals Pattern Synthesis of Planar Nonuniform Circular Antenna Arrays Using a Chaotic Adaptive Invasive Weed Optimization Algorithm

2014 ◽  
Vol 2014 ◽  
pp. 1-13 ◽  
Author(s):  
Huaning Wu ◽  
Chao Liu ◽  
Xu Xie
Keyword(s):  
Antenna Arrays ◽  
Search Space ◽  
Side Lobe ◽  
Side Lobe Level ◽  
Antenna Element ◽  
Invasive Weed Optimization ◽  
Pattern Synthesis ◽  
Invasive Weed ◽  
Fitness Value ◽  
Circular Antenna Arrays

A novel invasive weed optimization (IWO) variant called chaotic adaptive invasive weed optimization (CAIWO) is proposed and applied for the optimization of nonuniform circular antenna arrays. A chaotic search method has been combined into the modified IWO with adaptive dispersion, where the seeds produced by a weed are dispersed in the search space with standard deviation specified by the fitness value of the weed. To evaluate the performance of CAIWO, several representative benchmark functions are minimized using various optimization algorithms. Numerical results demonstrate that the proposed approach improves the performance of the algorithm significantly, in terms of both the convergence speed and exploration ability. Moreover, the scheme of CAIWO is employed to find out an optimal set of weights and antenna element separation to obtain a radiation pattern with maximum side-lobe level (SLL) reduction with different numbers of antenna element under two cases with different purposes. The design results obtained by CAIWO have comfortably outperformed the published results obtained by other state-of-the-art metaheuristics in a statistically meaningful way.

scholarly journals Shaped Beam Pattern Synthesis of Antenna Arrays Using Composite Differential Evolution with Eigenvector-Based Crossover Operator

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Sotirios K. Goudos
Keyword(s):  
Differential Evolution ◽  
Antenna Arrays ◽  
Design Method ◽  
Differential Evolution Algorithm ◽  
Beam Pattern ◽  
Crossover Operator ◽  
Pattern Synthesis ◽  
Shaped Beam ◽  
Rotationally Invariant ◽  
Beam Patterns

This paper addresses the problem of designing shaped beam patterns with arbitrary arrays subject to constraints. The constraints could include the sidelobe level suppression in specified angular intervals, the mainlobe halfpower beamwidth, and the predefined number of elements. In this paper, we propose a new Differential Evolution algorithm, which combines Composite DE with an eigenvector-based crossover operator (CODE-EIG). This operator utilizes eigenvectors of covariance matrix of individual solutions, which makes the crossover rotationally invariant. We apply this novel design method to shaped beam pattern synthesis for linear and conformal arrays. We compare this algorithm with other popular algorithms and DE variants. The results show CODE-EIG outperforms the other DE algorithms in terms of statistical results and convergence speed.

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