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In this paper, circularly polarized rectifying reflectarray antenna has been proposed. Cylindrical dielectric resonator (CDRA) antenna is used to exhibit left-hand and right-hand circular polarizations. As well, the antenna operates in a linear polarization mode on the basis of the bias states of two PIN diodes. The antenna is used to feed the reflectarray to increase its gain in a certain direction...
This paper introduces different designs of graphene based geometrical diodes coupled with nanoantennas for infrared (IR) energy harvesting. The geometrical diode is an electronic device in which the current flow through it is controlled by its geometry. The I–V characteristics of the graphene based geometrical diodes are calculated by the Monte Carlo simulation. Different shapes of graphene geometrical...
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