Optimization of Log Periodic Dipole Array using Genetic Algorithm : A Review

Abstract: This paper emphasis on the optimization of Log Periodic dipole array using Genetic Algorithm. The algorithm can be implemented on the physical size of the antenna and its gain. The proposed design is being compared with the conventional LPDA design in terms of length, diameter and spacing between dipole elements. The results reveal that the presented approach may improve the antenna gain and reduce its dimensions. The size of the antenna can be reduced up to 12% as compared to the conventional design. Also the gain can be improved from 9.1, 9.5, 9.2 and 8.5 dB to 10.7, 11.2, 9.9 and 9.1 dB for the desired communication bands. That is why; this approach makes an antenna an attractive choice for wireless applications.

Keywords: Genetic Algorithm (GA), Optimization Techniques, Log Periodic Dipole Antenna (LPDA).