Planar Compact Bidirectional Multi-band Fractal Antenna

Abstract

When the system requires operation at two or more frequencies, multi-frequency antenna may avoid the use of different antennas. Applying fractal to antennas allow for miniaturization of antenna with multi-band and broad-band operation, and with that rejecting other undesired frequency bands or noise frequencies. Fractal geometries have two common properties, space filling and self similarity. It has been shown that the self similarity property of fractal shapes can be applied to the design of multiband fractal antennas and the space filling property of fractals can be utilized to reduce antenna size [8-15].