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Ultra wideband antennas are used considerably in commercial and military telecommunication systems. A reduction in physical size and multi-band ability are very important in design of ultra wideband antenna. The use of fractal geometry in antenna design provides a good method for achieving the desired miniaturization and multi-band performances. In this paper, a compact, multi-band and broad-band antenna based on a new fractal geometry is designed and simulated. The proposed design is a loaded the 2nd iteration of a new fractal geometry to a square loop antenna. Numerical electromagnetics simulation is performed using SuperNEC electromagnetic simulator software. The simulation results show that the proposed design is a broad band antenna which is applied in 5-30 GHz frequency range. Radiation patterns are also studied.