Modified Sierpinski Carpet Fractal Antenna for Wireless Communication

--A compact fractal antenna based on the Sierpinski Carpet is proposed and designed in this paper. The paper illustrates the design optimization of the modified fractal antenna up to second order iteration for multiband characteristics. The antenna is fed by coaxial feed. The design is obtained at the center frequency 2GHz. The designs are simulated for various locations of coaxial feed. Moreover the effect of cutting slots in modified Sierpinski Carpet is observed. The enhancement in the operating bands is observed in the proposed design. Operating frequency bands are adjusted by variations in design parameters. Multiband functionality is observed in first and the second order iteration of the design presented in this paper. By alterations in the design parameters of this antenna various operating frequencies are achieved which are applicable to more than one application. Gain and Directivity are stabilized to large extent. Improvement in the return loss and VSWR is observed .These antenna designs are thoroughly simulated on FR-4 substrate with loss tangent 0.025 and dielectric constant 4.3 and analyzed using Computer S imulation Technology Microwave Studio-2012. These designs are applicable to Personal communication System, Satellite Communication and Navigation System, Mobile, WLAN, Wi-Max, Wi-Fi, Bluetooth ,Radio Navigation i.e. L-band, S -band and C-band applications.