Optical Vivaldi Antenna Array for Solar Energy Harvesting

In this paper, we try to find the best solution for our energy harvesting application by designing an efficient optical antenna which receives the solar radiation and converts it from AC to DC by integrating a rectifier. This work consists of designing a Vivaldi optical antenna with a maximum electric field captured in its gap. We also examine the use the optical array(double, four and eight) in order to increase the captured electric field concentrated in the common gap, compared to the single structure . Feeding lines are used to ride the captured electric field from the gap of each single antenna to a common gap. These innovative systems are small electronic devices often consisting of a low-power computer, wireless sensors, an antenna and capable of communicate with their environment. These devices also have an on-board energy source in the form of cells or batteries that require maintenance operations. periodic replacement or recharging, which can hinder the mobility and deployment of these communicating systems for the greatest number. This is the reason why we Today, we also note the very strong interest in improving energy autonomy and even the complete independence of these systems with respect to on-board sources.