Design and Analysis of Magneto Electric Dipole Antenna using SAR Application

In this paper, by modifying the coplanar ground-plane, rectangular or square shape with slots in ground plane instead of horn shape. Micro strip line is used as patch in existing paper. This work modifies the patch array strip as per the result requirement. More than one application will be covered in lower spectrum of microwave (1-10GHz).The antenna works in 300 MHz frequency band. It covers three frequency band at 4.3GHz, second band at 6.5-6.9 GHz with bandwidth of 300MHz (0.3GHz),third band at 7.5-7.9GHz with bandwidth of 300MHz.It is destiny for small SAR radar and satellite applications. The array consists of 12 half-wave dipoles, configured in two rows with two elements in each. The antenna structure in dual-conductors line technique was made, based on standard FR4 substrate. For increasing directivity, the flat reflector has been used. These arrays operate at a frequency range of 4-8Ghz.The goal is to obtain a high directivity with better gain and reduced losses to be especially used for X band applications. Therefore the antenna can be fabricated easily and is suitable for mass production. At all operating frequency bands, the proposed antenna obtains the stable gains, symmetrical and stable unidirectional radiation patterns, low cross polarization, and low back lobe. With these advantages, the proposed antenna is a good candidate for multiband wireless communication.