EMI Shielding for 5G IOT devices with MXene Metamaterial Absorber

In this article, we proposed a metamaterial with 2D MXene as a resonating element to reduce electromagnetic interference (EMI) at the sub-6 GHz frequency range. The shielding metamaterial is comprised of two miniaturized MXene resonator loops supported by Rogers dielectric substrate with a thin conducting MXene ground plane. The simulation of the proposed model is carried out in CST MICROWAVE STUDIO using a finite difference time domain (FDTD) Solver. The simulation of metamaterial unit cell under TE normal incidence has a resonance frequency of 3.45 GHz with a second harmonic resonance at 4.5 GHz. The -10 dB impedance bandwidth shows that a resonance frequency of the unit cell has a reflection coefficient of -41 dB which reveals the impedance matching of the metamaterial with incident frequency. The effect of incidence angle is analyzed from 30 0 to 90 0 , which can significantly increase the absorption, thereby providing higher EMI shielding. It can be noted, that our proposed model is polarization sensitive where TE is the dominant mode having broad bandwidth. The proposed metamaterial can perform well with 5G EMI shielding for IoT devices.