Multiple Input Multiple Output Antenna (MIMO) Ultra-Wideband With Dual Band Notched And Low Mutual Coupling Value

Abstract

MIMO UWB antenna is one of the technologies that have high capacity and data rate. One of the benefits of MIMO UWB is interference rejection that can cancel the most dominant and unwanted wavefronts impinging on the antenna. The most dominant interference in wireless communication standards are Wireless Local Area Network (WLAN) and Worldwide Interoperability for Microwave Access (WiMAX). Therefore, designing a MIMO UWB antenna system that has low mutual coupling is a challenge especially coupled with the ability for WLAN and WiMAX band rejection.
In this study, it was designed by modifying the MIMO UWB antenna using FR-4 substrate material with dielectric constant (εr) 4.4, loss tangent 0.035 and material thickness 1.6 mm. The results obtained are working frequencies of 2.8 - 12 GHz with dual band-notched 3.5 - 4.2 GHz and 5 - 5.9 GHz which can be used for Ultra-Wideband (UWB) communications that have low mutual coupling.