Abstract
Microwave absorbers are efficient design structures that enhance electromagnetic shielding and reduce electromagnetic wave interference. It dissipates an incident electromagnetic wave by converting it into other forms of energy, thereby preventing the electromagnetic wave's reflection and/or transmission. A novel electromagnetic metamaterial dual-band microwave metamaterial absorber for IoT application is proposed in this manuscript. The proposed absorber has an excellent absorption rate, above 98% and 99% at 2.4 and 5.1 GHz, respectively. The structure, designed over FR-4 material, provides negative permittivity and permeability. The Nicolson Ross Weir (NRW) method investigates metamaterial properties. An array of (3 × 3) unit cell absorbers is designed, developed, and tested; simulated and measured results are in good agreement.
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