Nanjing University

Xinye Zou

Bin Liang

Jianchun Cheng

Yifan Zhu

Jing Yang

Xudong Fan

An ultra-thin Schroeder diffuser comprises a backing-plate, wherein the backing-plate is provided with 7&#xd7;p rows and 7&#xd7;q columns of unit cells, p and q are integers greater than or equal to 1, a side length of the unit cell is 0.48&#x3bb;, a depth of the square unit cell is 0.04&#x3bb;, the unit cell is provided with a square neck, a side length of the square neck is less than the side length of the unit cell, a depth of the neck is 0.01&#x3bb;, &#x3bb; is a wavelength of the diffuser corresponding to the design at a center frequency center f, the neck widths w of different unit cells are different, and a distribution of the widths satisfies a certain sequence.

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Nanjing, China

Xinye Zou