Table 2 Performance comparison to recently published relevant works.

From: Ultrabroadband microwave metamaterial absorber with dielectric lossy layer

Absorber structure

\(\:{f}_{low}-{f}_{high}\)

(absorption > 90%)

Relative absorption bandwidth (> 90%)

Angular stability (absorptivity > 90%)

Ref.24

14.4–39.4 GHz

93%

30°

Ref.27

4.1–18.2 GHz

126%

30°

Ref.28

6.1–35.2 GHz

141%

30°

Ref.35

5.3–18 GHz

109%

30°

Proposed

4.4–60 GHz

173%

45°

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