We propose a miniaturized band-pass frequency selective surface (FSS) with periodic unit cell structure. The proposed FSS is\nrealized by symmetrically bending the edges of the square loop aperture element, by which our proposed FSS increases the resonant\nlength, and, hence, reduces its size. In this FSS, each unit cell has a dimension of 0.0538??Ã?â??0.0538??, where ?? represents the\nwavelength of the corresponding resonant frequency. Both the theoretical analysis and simulation results demonstrate that our\nproposed FSS, having high polarization stability and angle stability, can achieve smaller size in comparison with the previously\nproposed structures
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