Majlesi Journal of Electrical Engineering Concentric Circular Antenna Array Synthesis Using Biogeography Based Optimization Volume 6 (2012) Issue 1, March 2012 2024 02 25 Concentric Circular Antenna Array Synthesis Using Biogeography Based Optimization EN Urvinder Singh Department of ECE, Guru Nanak Dev Polytechnic College, Ludhiana, Punjab, India Tara Kamal Department of ECE, DIET Kharar, Punjab, India Journal Article 2024 02 25 Biogeography based optimization (BBO) is a new stochastic force based on the science of biogeography. Biogeography is the schoolwork of geographical allotment of biological organisms. BBO utilizes migration operator to share information between the problem solutions. The problem solutions are known as habitats and sharing of features is called migration. In this paper, BBO algorithm is developed to optimize the current excitations of concentric circular antenna arrays (CCAA). Concentric Circular Antenna Array (CCAA) has numerous attractive features that make it essential in mobile and communication applications. The goal of the optimization is to reduce the side lobe levels and the primary lobe beam width as much as possible. To confirm the capabilities of BBO, three different CCAA antennas of different sizes are taken. The results obtained by BBO are compared with the Real coded Genetic Algorithm (RGA), Craziness based Particle Swarm Optimization (CRPSO) and Hybrid Evolutionary Programming (HEP).