Recently, circular polarizer with cylindrical double-helical metamaterials has been proposed to broaden the operation band of cylindrical single-helical metamaterials, but its extinction ratio is deteriorated. In this paper, we proposed a circular polarizer with conical double-helical metamaterials, which have a large extinction ratio of 83:1, more than four times higher than that of cylindrical double-helical metamaterials. Furthermore, we gave a qualitative interpretation about this phenomenon through analyzing the interaction between two helical wires in one unit cell of the circular polarizer.
No takes yet. Share an insight, caveat, or question.
Zhao et al. (2012) studied this question.
Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context: