Metasurface and communication device

The invention is applicable to the technical field of communication, and provides a metasurface and communication equipment, the metasurface comprises a plurality of metasurface units, the number of the metasurface units is at least 2, the number of the metasurface units is Nth power, and the phase corresponding to each metasurface unit in the metasurface units differs from a preset phase difference in sequence, the difference between the preset phase difference and the first ratio is smaller than a phase error threshold value, the first ratio is a ratio of 2 pi to N power of 2, and N is a coding bit of the metasurface; the size of the first metasurface unit is positively correlated with the ratio of the coding period to the Nth power of 2, the coding period is positively correlated with the ratio of the 2 pi to the phase gradient, the phase gradient is positively correlated with the product of the first difference value and the second ratio, the first difference value is positively correlated with the differ