Abstract: The reflectarray includes a plurality of cells integrated in a PCB and externally illuminated by an input signal from a feeding source at a frequency fi, and an output signal is reflected, where each cell of the reflectarray is an AIA formed by a passive radiating element connected to an active circuit, which can be either an oscillator, or a push-push oscillator or a SOM, where the passive radiating circuit is placed on a reflective surface forming a side of the reflectarray and the active circuit is placed on the reverse side, the active circuit producing an output signal with a frequency related to the input frequency fi and the oscillation frequency fosc of said active circuit. This phase relationship is determined by an output phase variation, which is controlled by electronic means integrated in the reflectarray system, which allows an output phase variation interval even higher than 180°.

Abstract: The reflectarray includes a plurality of cells integrated in a PCB and externally illuminated by an input signal from a feeding source at a frequency fi, and an output signal is reflected, where each cell of the reflectarray is an AIA formed by a passive radiating element connected to an active circuit, which can be either an oscillator, or a push-push oscillator or a SOM, where the passive radiating circuit is placed on a reflective surface forming a side of the reflectarray and the active circuit is placed on the reverse side, the active circuit producing an output signal with a frequency related to the input frequency fi and the oscillation frequency fosc of said active circuit. This phase relationship is determined by an output phase variation, which is controlled by electronic means integrated in the reflectarray system, which allows an output phase variation interval even higher than 180°.