Résumé:
The work presented in this report of Magister concerns the measure of the ambient
electromagnetic energy to recycle her (it) to feed for example sensors. The antenna allows the
removal of this energy must cover surrounding the RF frequency band (0.8 - 3 GHz). The
frequency independent antennas meet the specifications. An antenna array printed log periodic
was designed. The radiant elements are of the rectangular type, fed by a microstrip line in the
same plan. The calculation of the geometrical parameters of the various antennas of the
network is made by Matlab. The simulation results obtained using ADS / Momentum HP Eesoft,
software based on the method of moments, show good performance, shows the good
performance as an adaptation to the desired frequency band, This supports our choice for this
type of antenna for energy recovery room.
