Polarization Insensitive 3D Cylindrical Shaped Frequency Selective Surface

A novel structure of three dimensional Cylindrical Shaped Frequency Selective Surface (CSFSS) has been structured and its polarization sensitivity has been analyzed. The effect of oblique angle of incident electromagnetic wave on the CSFSS by varying the circumference of the outer ring has been observed. The analysis has been made for oblique incident angles from 0° to 60°. The resultant frequency response reveals that the CSFSS structure has been found highly polarization insensitive and obtained a stable transmission response with respect to incident EM wave. Moreover, an analysis has been made to find out the effect of variation of the circumference on the resonant frequency and result shows a highly sensitive and interesting relation between them.

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