Abstract
The goal of this work was to use new patch antenna structures based on photovoltaic cells. The radiating patch element of a patch antenna was replaced by a solar cell. Direct Current (DC) generation remained the original feature of the solar cell, but additionally it was now able to receive and transmit electromagnetic waves. It is dedicated to harvesting the energy on the one hand and on the other hand to the RF transmission for telecommunications applications in isolated environments. We propose a square grid with four bus bars around the active area, for this geometry fingers are considered uniform and evenly spaced. A mathematical model which would serve the minimization of power losses of the cell and therefore the improvement in the conversion efficiency was studied. A simulation allowed analyzing the performance of the antenna, with a silicon material, and testing its parameters such as the reflection coefficient (S11), gain, directivity and radiated power. The performance analysis of the solar cell patch antenna was conducted using Advanced Design System (ADS) software. Simulation results for this antenna showed a resonance at a frequency of 14.88 GHz with an effective return loss of -14.77dB and a gain of 5.77dBi.
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