A Miniaturized Polarization Independent Frequency Selective Surface with Stepped Profile for Shielding Applications
Keywords:
Frequency Selective Surface (FSS), periodic structure, stepped profile, transverse electric, transverse magnetic, WiMAX bandAbstract
In this paper, a miniaturized Frequency Selective Surface (FSS) with band-stop characteristics is presented for shielding applications. The FSS is designed to notch at 3.5 GHz frequency in the WiMAX band. The design is composed of a circular metallic patch with identical stepped profile printed on both sides of a low cost FR-4 laminate. The design provides an attenuation of 43 dB at desired resonant frequency. The FSS geometry makes it independent of polarization and it offers stable transmission response. Oblique angle variations don’t affect the unit cell performance, for transverse electric and transverse magnetic modes of polarization. The FSS unit cell is compact with the dimensions of 25 × 25 mm2. The simulated and measured results show good agreement for the proposed design.
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References
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