A Method for Extending the Bandwidth of Metamaterial Absorber

Figure 1

Geometry of the basic absorber unit cell (𝑎1=5.8 mm, 𝑎2=5.8 mm, 𝑤1=4.1 mm, 𝑤2=4.3 mm, 𝑔=0.9 mm, 𝑡1=0.3 mm, 𝑡2=0.4 mm); (a) front-view; (b) bottom-view.

(a)

(b)