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1 Journal of Telecommunications and Information Technology

1 2020

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Failure Correction of a Linear Array of Coupled Parallel Vertical Dipole Antennas

Patidar Hemant, Mahanti Gautam Kumar, Muralidharan R., Singh Prasanna Kumar

Journal of Telecommunications and Information Technology

2020

nr 1

62--69

In this paper, a cuckoo search algorithm based on the combined characteristics of the brood parasite behavior and Levy ﬂights is applied to correct the radiation pattern of a linear antenna array composed of parallel dipoles with faulty elements. An eﬀort is made to restore the radiation pattern similar to one without any faulty elements, and the diﬀerence in the values of side lobe level and wide null depth of both patterns, as well as the voltage standing wave ratio obtained from the new voltage excitations become diminished. The examples presented in this paper show the eﬀectiveness of this algorithm in correcting the radiation pattern of a linear array of 36 and 120 dipole antennas with four and ten failed elements, respectively. The results show that the matching condition and the wide null control produced by Cuckoo Search algorithm are more eﬃcient in comparison with the benchmark failure correction algorithm. The approach adopted herein may be applied to other array conﬁgurations as well.