Abstract
Self-affine property of a modified multifractal Cantor geometry is exploited to design frequency selective surfaces (FSS) with multiband response. The main advantage of the proposed structure is to design multiband FSS with multiple frequency ratios between the adjacent bands and easily-built structures. In addition, the proposed structure increases the degree of freedom in design of multiband FSS response according to the number of fractal iterations. The validation of the proposed structure was initially verified through simulations in Ansoft Designer 3.5 and then a prototype was built with a validation purpose.
Highlights
Frequency selective surfaces (FSS) enhanced several applications, contributing significantly to improve the performance of modern communication systems
We proposed the use of multifractal Cantor patch elements to design multiband FSS that can be applied in C-band (4 – 6 GHz) and X-band (8 – 12 GHz)
In this paper, we presented a new proposal for FSS design using a modified multifractal Cantor geometry as patch elements
Summary
Frequency selective surfaces (FSS) enhanced several applications, contributing significantly to improve the performance of modern communication systems. There are several applications that use FSS, such as, ultra wide band antennas [1], infrared filters [2], radomes [3], reflectarrays and inflatable antennas [4], etc. It was observed that the FSS can be used in different bands of the electromagnetic spectrum such as microwave and millimeter wave [5]. FSS composed of conducting patch elements spaced with periodicities Tx and Ty in x and y directions, respectively. These patches are printed on a dielectric layer with permittivity εr and thickness h.
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