A Novel Miniaturized Fractal Antenna on Circular Patch with Defected Ground Structure (DGS)

A novel miniaturized fractal antenna on circular patch with DGS is examined in this paper. The designed antenna will resonate in X band, Ku band, and K band at 8.91 GHz, 14.27 GHz, 18.58 GHz, and 22.31 GHz frequencies. A dumbbell shape DGS structure is introduced to enhance bandwidth, and the newly improved antenna will have the application in Ka band also. The improved antenna will resonate at 8.85 GHz, 14.19 GHz, 18.65 GHz, 22.43 GHz, and 26.89 GHz. The designed antenna is miniaturized and having the substrate area of 14.3 mm × 14.3 mm with a circular shape patch of radius 4.2 mm. FR4 (4.4) material is used to design the substrate of antenna. The examined miniaturized antenna is compatible with satellite communication, radio location, mobile communication, space research, and radio navigation. The simulation of investigated antenna is performed on Ansoft HFSS antenna design simulation software.