Table 2. Compared performances of the proposed metamaterial absorber with other angle-insensitive metamaterial absorbers.

	Frequency	A at θ = 0°		A at θ = 50°	A at θ = 60°	A at θ = 70°	Polarization Insensitivity
Ref. 19	10.14 GHz	97%	≈	99%	92%	None	Yes
Ref. 20	0.22 THz	97%		97%	97%	None	Yes
Ref. 21	9 GHz	97%		—	93.72%	None	No
Ref. 22	10.3 GHz	97%		99%	95%	None	Yes
Ref. 26	10.44 GHz	99%		97%	90%	80%	Yes
Proposed Work	11.3 GHz	99%		99%	99%	98%	Yes