A 15-Segment Fractal Antenna Using Characteristic Mode Analysis

In this research, the Iterated Function System (IFS) concept is utilized to develop a novel 15-segment fractal antenna. Additionally, Characteristic Mode Analysis (CMA) is applied to scrutinize the electromagnetic behavior of the proposed fractal structure in a multilayer medium. This examination yields insights into the physical significance of modes present in the antenna. Based on these insights, further investigation of the surface current distribution and modal significance of the antenna is conducted to mitigate unwanted harmonics without necessitating additional filter components. The resulting modified 15-segment fractal antenna demonstrates suitability for applications in the C and X bands.