Optimization of Optimal Gain Ultra Wide Band Microstrip patch antenna for C-Band, X-Band and Ku-Band Application

Abstract

In this paper, the optimization of an ultra-wideband optimal gain parasitic circularly polarized patch antenna for C-Band,  X-Band, and Ku-Band applications has been presented. The proposed geometry of the antenna is designed using a negative mutual coupling approach and parasitic array techniques. The geometrical structure has been configured by a ground plane, driven element, and top layer U- slot director. The greenhouse analysis is being used for the calculation of total inductance and mutual inductance of the geometries. The gap coupling and negative mutual approaches have been used for enhancing the gain and impedance bandwidth of the designed antenna. The novel U-shaped directors have been used to improve the radiation characteristics of the antenna. The optimization of the antenna is discussed in five sections. The mathematical modeling of inductance and mutual inductance has been done for an appropriate solution. After all optimizations, the optimum antenna design has been found, providing an operating impedance bandwidth and optimal gain from 5. 8 GHz to 18.15 GHz. The proposed parasitic array antenna has been designed with appropriate dimensions and can be used for X Band, Ku-Band, and C-Band wireless communication. The simulated antenna has been fabricated and validated experimentally.