Design and Analysis of Fractal-Shaped High-Impedance Surface Unit Cell Characteristics

Fractal geometries consistently provide solutions to several electromagnetic design problems. In this paper, fractal such as Hilbert and Moore curves are used efficient High-Impedance Surfaces. Modern communication devices have many sensors that needed communicate wirelessly. The critical component of wireless communications is antennas. Planar microstrip patch antennas popular due their low profile, compactness, good radiation characteristics. structural disadvantages they surface waves propagate over the ground plane. Surface (HIS) planes a prominent solution minimize eliminate waves. HIS structures behave active LC filters suppress at resonance frequency. frequency structure obtained by its equivalent or analyzing reflection phase This work presents conventional similar mushroom curve HIS. characteristics applying periodic boundary conditions with plane wave illumination. results were in terms angle. show narrow band given dimensions 10 mm × 20 mm. These helpful replacement PEC for under sub-6 GHz. fractals also designed multiband response can be useful L, S, C applications. Another challenge protrusions, which make difficult. effect having vias absence on shows least no significant x-band operation.