Design of Non-Uniformly Spaced Circular Arrays of Parasitic Dipoles for Lower Side Lobe Level with Maximum Directivity

Patidar, Hemant; Mahanti, G. K.

doi:10.7716/aem.v7i1.642

Cited by 3 publications

(1 citation statement)

References 18 publications

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“…Moreover, reference 17 compares the performance of different optimization methods in optimizing scannable CAAs. More works that related to the beam pattern optimizations by using the swarm intelligence algorithms can be found in references 18‐29.…”

Section: Introductionmentioning

confidence: 99%

An improved cuckoo search with reverse learning and invasive weed operators for suppressing sidelobe level of antenna arrays

Lin

Wang

Zhang

et al. 2020

Int J Numerical Modelling

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In order to overcome some shortcomings including the premature convergence and slow convergence speed at later evolution stage of conventional cuckoo search (CS) algorithm for the sidelobe suppressions of antenna arrays, an improved CS with reverse learning and invasive weed operators (ICSRLIWO) is proposed. First, ICSRLIWO algorithm generates reverse populations through opposition‐based learning method, then selects better individuals in the mixed population consists of the original and reversed population to form a high‐quality initial population. Second, ICSRLIWO introduces the reproducing, space diffusion and survival competition operators of invasive weed optimization to improve the population diversity and global search ability of conventional CS algorithm. Simulations are conducted based on 30 test functions in the CEC 2014 test suit to verify the performance of the proposed approach, and the results show that ICSRLIWO has higher solution accuracy and faster convergence speed than other comparison algorithms. In addition, ICSRLIWO also has advantages in solving the array antenna beam pattern optimization problems.

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Section: Introductionmentioning

confidence: 99%

An improved cuckoo search with reverse learning and invasive weed operators for suppressing sidelobe level of antenna arrays

Lin

Wang

Zhang

et al. 2020

Int J Numerical Modelling

View full text Add to dashboard Cite

show abstract

Generation of cosecant squared pattern from linear array of active and parasitic dipole antennas

Patidar

Kar

2022

Electromagnetics

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Radiation Pattern Synthesis of Planar Arrays Using Parasitic Patches Fed by a Small Number of Active Elements

Mohammed¹,

Younus²

2020

Modern Printed-Circuit Antennas

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In this chapter, several planar array designs based on the use of a small number of the active elements located at the center of the planar array surrounded by another number of the uniformly distributed parasitic elements are investigated. The parasitic elements are used to modify the radiation pattern of the central active elements. The overall radiation pattern of the resulting planar array with a small number of active elements is found to be comparable to that of the fully active array elements with a smaller sidelobe level (SLL) at the cost of a relatively wider beamwidth and lower directivity. Nevertheless, the uses of only a small number of the active elements provide a very simple feeding network that reduces the cost and the complexity of the array. Simulation results which have been computed using computer simulation technology-microwave studio (CST-MWS) show that the sidelobe level of the designed array pattern with parasitic elements is considerably better than that of the similar fully active array elements. The proposed array can be effectively and efficiently used in the applications that require wider antenna beams.

show abstract

Design of Non-Uniformly Spaced Circular Arrays of Parasitic Dipoles for Lower Side Lobe Level with Maximum Directivity

Cited by 3 publications

References 18 publications

An improved cuckoo search with reverse learning and invasive weed operators for suppressing sidelobe level of antenna arrays

An improved cuckoo search with reverse learning and invasive weed operators for suppressing sidelobe level of antenna arrays

Generation of cosecant squared pattern from linear array of active and parasitic dipole antennas

Radiation Pattern Synthesis of Planar Arrays Using Parasitic Patches Fed by a Small Number of Active Elements

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