Two-Port UWB MIMO Antenna Based on the Neutralization Line Approach for Automotive Applications

Abstract

Wireless-enabled gadgets pack a lot of functionality into a small package, which necessitates much bandwidth for speedier data transfer. This paper discusses the characteristics of two-element multiple-input and multiple-output (MIMO) antenna systems operating in ultrawideband (UWB). The close proximity of the antenna components results in high mutual coupling. The neutralization line (NL) is introduced on the radiator to enhance isolation. The physical dimension o of the substrate is 0.4λ×0.5λ×0.02λ. The addition of a rectangular structure (NL) enhances isolation by more than 15 dB for the working frequency range of 3.4-10.7 GHz. Additionally, the diversity characteristics of MIMO are examined, ECC<0.02 DG ≃10, TARC<-10 dB, MEG<-3dB, MEG ratio is nearly zero, and CCL<0.4 bps/Hz outcome confirming that the suggested MIMO architecture is well-suited for applications involving wireless communication.