Frequency-Tunable Electromagnetic Absorber by Mechanically Controlling Substrate Thickness

<div>Geometry of the unit cell of the proposed absorber. (a) Top view of the unit cell. (b) Perspective view of the unit cell. 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International Journal of Antennas and Propagation

fig1

Figure 1

Figure 1: Frequency-Tunable Electromagnetic Absorber by Mechanically Controlling Substrate Thickness 