Microstrip circular antenna array design for radar applications

The design and characteristics of the double sided microstrip circular antenna array are presented. The single sided antenna array is placed on the top layer and the double sided antenna array is placed on both the top and bottom layers to obtain the desired antenna characterilstics. The single sided antenna array is designed for single band at 6.3-6.6 GHz for C band and the double sided antenna array is designed for dual bands at 6.05-7 GHz and 9-10 GHz to support C band and X band Weather Radar applications. The single band antenna array shows directional radiation pattern with the gain value of 6.74 dBi at 6.44 GHz and dual band at 3.12 dBi at 6.5 GHz and 3.8 dBi at 9.5 GHz. The single sided single band and double sided dual band antenna provides directional radiation pattern with high gain.