Integrated rectifier

An electric rectifier for use in a rectenna device, configured to provide direct conversion of solar and heat radiation into electricity, the electric rectifier comprising an integrated structure comprising:

• a diode structure comprising first and second electrodes located in first and second conductive layers respectively and an insulating layer between them, the diode structure being configured and operable for receiving an input signal and generating output signal indicative thereof;
• and
• a compensation structure electrically connected in parallel to said diode structure and being configured to compensate an intrinsic parasitic capacitance of the diode structure when a frequency spectrum of the input signal is beyond a cutoff frequency of the diode;
• wherein said compensation structure provides a parallel electric resonance with said diode structure at an intended frequency of said frequency spectrum of said input signal;
• and
• wherein said compensation structure comprises an inductor and a capacitor connected in series and both configured to resonate at said intended frequency.