Multiband Cross Dipole Antenna Based On the Triangular and Quadratic Fractal Koch Curve

This paper present the analysis and design a small size, low profile and multiband fractal cross dipole antenna. The proposed antenna design, analysis and characterization had been performed using the method of moments (MoM) technique. The new designed antenna has operating frequencies of 0.543 GHz, 2 GHz, and 6.5 GHz with acceptable bandwidth which has useful applications in communication systems. The radiation characteristics and reflection coefficient of the proposed antenna were described and simulated using 4NEC2 software package. Also, the gain of this proposed antenna is calculated and described in the three planes are XZplane, YZ-plane, and XY-plane, where the antenna placed in the free space.