Design of a wide band antenna array with cosecant square pattern using genetic algorithm

In this paper, design of a linear planar dipole antenna array with cosecant square pattern at 1088MHz, wide band, and low sidelobe level is presented. In order to achieve a desired shaped-beam, a planar dipole has designed as an array element for wide bandwidth with return loss less than -15dB. Then...

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Bibliographic Details
Published in2012 20th Telecommunications Forum (TELFOR) pp. 564 - 567
Main Authors Dehghani, M. J., Karbalaee, Z., Mahzon, M.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.11.2012
Subjects
Antenna Array Synthesis
Antenna radiation patterns
Arrays
Dipole antennas
Genetic Algorithm
Genetic algorithms
Linear antenna arrays
Low SLL
Optimization
Planar Dipole
Shaped beam
Wide Band
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Summary:In this paper, design of a linear planar dipole antenna array with cosecant square pattern at 1088MHz, wide band, and low sidelobe level is presented. In order to achieve a desired shaped-beam, a planar dipole has designed as an array element for wide bandwidth with return loss less than -15dB. Then, the amplitude and phase values of the current elements of a linear array which produces desired shaped-beam antenna pattern are determined under certain constrains using an adaptable genetic algorithm. As a result of proposed method, a cosecant square pattern with sidelobe level less than -18dB, a wide coverage beyond 30°, wide band (23%) and maximum element-to-element current magnitude ratio equal to 1.85, which minimizes mutual coupling difficulties is achieved. The results are validated by CST STUDIO electromagnetic simulation. The result is very useful in the surveillance radar antenna application.
ISBN:9781467329835
1467329835
DOI:10.1109/TELFOR.2012.6419273