Table 1 Geometric parameters of CSRs. (unit: mm).
From: Subwavelength broadband sound absorber based on a composite metasurface
L | W | \(w_1\) | \(t_x\) | \(t_y\) | \(l_2\) | L | W | \(w_1\) | \(t_x\) | \(t_y\) | \(l_2\) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CSR_1 | 100 | 68 | 11.4 | 1.4 | 1.4 | 46 | CSR_7 | 100 | 50 | 10 | 1.4 | 2.1 | 29.5 |
CSR_2 | 100 | 68 | 11.4 | 1.4 | 1.4 | 39 | CSR_8 | 100 | 50 | 10 | 1.4 | 2.1 | 23.5 |
CSR_3 | 100 | 68 | 11.4 | 1.4 | 1.4 | 31.5 | CSR_9 | 100 | 32 | 8.6 | 1.4 | 1.4 | 54 |
CSR_4 | 100 | 68 | 11.4 | 1.4 | 1.4 | 23.5 | CSR_10 | 100 | 32 | 8.6 | 1.4 | 1.4 | 46 |
CSR_5 | 100 | 50 | 10 | 1.4 | 2.1 | 46 | CSR_11 | 100 | 32 | 8.6 | 1.4 | 1.4 | 39.5 |
CSR_6 | 100 | 50 | 10 | 1.4 | 2.1 | 37 | CSR_12 | 100 | 32 | 8.6 | 1.4 | 1.4 | 35.5 |
