MULTI-ELEMENT UNIT CELL METAMATERIAL ABSORBER FOR THE GHz FREQUENCY APPLICATIONS

DOI: 10.18173/2354-1059.2023-0058

Tóm tắt

In this paper, we used Computational Simulation Technology CST (2017) software to design and identify a perfect absorber material for metamaterial type (MMA), aiming for optimal absorption of electromagnetic waves in the GHz frequency band. By changing the size parameters of the constituent materials onto MMA, we achieved optimum structure with good absorption in the frequency range of 23.1 to 25.2 GHz and an absolute in the narrow band from 23.3 to 23.7 GHz. These findings are of significant importance in finding novel structural characteristics of MMA materials that exhibit complete absorption of electromagnetic waves within the K band frequency range (18-27 GHz). The optimal material after the investigation has great potential applications in absorbing electromagnetic waves, especially in devices such as military and aerospace radars, and in satellite communication systems that operate within the 18 to 80 GHz frequency region.