Wednesday, September 14, 2016
Abstract-Graphene rectenna for efficient energy harvesting at terahertz frequencies
In this paper, we propose a rectenna that encompasses two distinct functions in a single device, namely, and rectifier, which till now were two separate components. In this way, the rectenna realizes an efficient harvesting technique due to the absence of impedance mismatch between and diode. In particular, we have obtained a maximum conversion efficiency of 58.43% at 897 GHz for the rectenna on -doped GaAs, which is a very good value, close to the performance of an RF harvesting system. A comparison with a classical metallic with an HfO-based metal-insulator-metal diode is also provided.