Parameter calculation of rectangular microstrip antenna using Biogeography-Based Optimization

Miniaturized microstrip antennas are of great interest in the recent time especially in wireless communication systems and biomedical applications. To enhance efficiency, avoid co-channel, adjacent channel interference and associated complications accurate determination of resonant frequency is an essential requirement. A method to calculate accurately the resonant frequency is of great importance especially on such antennas like microstrip patch antennas that have inherently narrow bandwidths. The feed point calculation is also difficult in this type of antenna. Biogeography-Based Optimization (BBO) is a new bio-inspired optimization and is yet to be applied in antenna and electromagnetic engineering. In this paper, the authors have used BBO for accurate determination of resonant frequency and feed point calculation of rectangular microstrip antenna (MSA). The results are in good agreement thus encouraging the use of BBO for antenna design.