Abstract: “The Sierpinski gasket monopole antenna has been shown to be an excellent candidate for multiband applications. The multiband behavior of the fractal Sierpinski antenna is described in this paper. An analysis is performed to examine the parameters of antenna with a frequency range in between 1 GHz to 6 GHz, at various operating frequency with a VSWR <2 and return loss<-10 dB of similar antenna structures. The single band behaviors of antenna are studied in this paper with an iterative method and try it to convert in multiband antenna. In this paper, proposed antenna is designed to satisfy all the system requirements for DCS1800 (1.71–1.88 GHz), DCS1900 (1.85–1.99 GHz), IMT-2000 (1.885–2.2 GHz), UMTS (1.92–2.17 GHz), WiBro (2.3–2.39 GHz), WLAN (2.4–2.483 GHz), and DMB (2.605–2.655 GHz), simultaneously. All the simulated results are mandatory and satisfactory using HFSS software.”

Keywords: Fractal antenna, multiband ,Sierpinski triangle Gasket, iterative method, probe feeding, capacitive feeding.