Table 2 Various design steps with related parameters.

From: Penta band single negative meta-atom absorber designed on square enclosed star-shaped modified split ring resonator for S-, C-, X- and Ku- bands microwave applications

Design phases

Maximum absorption at the frequency (GHz)

Top absorption peaks (%)

Covering bands

Design 1

3.83, 8.74, 11.62, 15.50

99.99, 86.09, 85.87, 92.58

S-, C-, X-, and Ku-

Design 2

5.76, 11.08, 15.98

99.67, 69.92%, 98.05

C-, X-, and Ku-

Design 3

5.57, 10.96, 15.23

99.89, 76.01, 77.82

C-, X-, and Ku-

Design 4

3.84, 8.78, 11.77,15.60

99.99, 88.46, 91.91, 55.45

S-, X-,and Ku-

Design 5

3.78, 5.49, 8.26, 10.69, 16.67

97.12, 91.63, 92.91, 99.55, 98.98

S-, C-, X-, and Ku-

Proposed MAA

3.80, 5.65, 8.45, 10.82, 15.92

97.87, 93.65, 92.67, 99.95, 99.86

S-, C-, X-, and Ku-

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