Abstract
In this paper, a dual-band band-stop frequency selective surface(FSS) is designed. Structure of the FSS is composed of upper and lower metal patches on a dielectric substrate. The metal patches consist of a square metal strip on one side of the dielectric substrate and a folded ring part on both sides of the dielectric substrate. The dual-band FSS can operate on 1.6 GHz and 2.4 GHz which TE mode bandwidth is 0.1 GHz~0.18GHz and 0.4 GHz~0.68GHz (-15dB stop-band bandwidth), and TM mode bandwidth is 0.04 GHz~0.1GHz and 0.2 GHz~0.4GHz (-15dB stop-band bandwidth), respectively. The whole dimension of miniaturized unit cell of elements is 0.085λ × 0.085λ. The miniaturization element of FSS and stable center frequency is achieved.
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