Fig. 9: Experimental scenario of data transmissions at two frequencies toward different deflection angles. | Nature Communications

Fig. 9: Experimental scenario of data transmissions at two frequencies toward different deflection angles.

From: Manipulations of multi-frequency waves and signals via multi-partition asynchronous space-time-coding digital metasurface

Fig. 9

The ASTCM is illuminated by a transmitting horn antenna at 4.25 GHz, which is connected to a signal generator. The ASTCM is modulated with a controlling platform. Two receiving antennas (Receivers A and B) connected to a USRP are employed to record the echo waves from the metasurface.

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