shows the block diagram of a typical rectenna. The
incoming RF power is collected by the microwave antenna.
The rectifYing circuit rectifies the incoming Ac current. The
Dc path to the load for separating the high frequency
components from the Dc signal is provided by an output Dc
pass filter. The dipole element captures microwave energy for
rectification process. In last few recent years different types of
rectenna elements have been proposed.