A Modified Mandelbrot Fractal Antenna with Multi-Band Characteristics

This paper proposes a modified patch antenna based on a Mandelbrot fractal structure which has multi-band characteristics. The geometry of the patch consists of a Mandelbrot set with different iterations in the degree of 4. Simulation results show that the proposed Mandelbrot fractal antenna has a good performance in gains and radiation patterns. Also, due to the nested structure of the antenna, it has much better multi-band characteristics and an area reduction of 15.0% compared to the Mandelbrot fractal patch antenna with only one single iteration.