Table 2 The transmission resonance frequency and its magnitude for different arrays.

Unit cell

2.86, 5, 8.3

− 26.86, − 31.24, − 26.16

13.11

1 \(\times\) 2 array

2.91, 5.07, 8.38

− 26.62, − 31.41, − 26.43

12.89

2 \(\times\) 2 array

2.96, 5.15, 8.51

− 26.89, − 31.72, − 26.69

12.67

3 \(\times\) 3 array

2.96, 5.16, 8.54

− 27.02, 31.87, 26.83

12.96

4 \(\times\) 4 array

2.99, 5.21, 8.62

− 27.15, − 32.03, − 26.96

12.54