Table 3 Performance comparison of the MMA with other metamaterial absorber.

From: Dual band polarization insensitive metamaterial absorber for EMI shielding from GSM and 5G communication systems

References

Year

Unit cell size (mm × mm)

Operating Frequency

Absorption (%)

EMR

Polarization insensitivity

Application

49

2023

20 × 20

2.4, 3.5, 5.85

99.3,95.68, 99.5

6.25

yes

WLAN and 5G applications

50

2019

10 × 10

5.57, 7.97, 13.44

98.9,97.99, 99.28

5.38

yes

Detection, Radar application

51

2019

24 × 24

8.6,10.2, 11.95

Above 80%

1.45

yes

Not mentioned

52

2022

28.3 × 28.3

2.4, 5.2, 5.8

99, 98, 98

4.41

no

Energy harvesting

53

2023

17 × 17

20.38, 21.75, 23.1, 24.22 25.12

97.8, 92.9, 97.2, 99.3 96.8

0.86

yes

5G communication

54

2021

10.4 × 10.4

3.2, 5.32, 11.15, 16.73

95.75,95.9, 97.7, 95.64

9.01

yes

S, C, X band applications

55

2022

8 × 8

24, 28

98, 94

1.56

No

5G communication

Proposed

2025

24 × 24

1.8. 3.5

98.7, 99.7

6.94

Yes

EMI shielding