A review on bandwidth enhancement techniques and band-notched characteristics of MIMO-ultra wide band antennas

Ultra-Wide Band (UWB) technology has a bright future because it has unique characteristics, that can deliver efficient transmission of data across localized distances with less energy lost. In today's scenario, due to tremendous advancement in wireless communication systems, UWB technology has shown to be an effective strategy to replace conventional wireless technologies. Mobile users on the move benefit from high-speed web access and digital assistants made possible by wireless technologies. Most communication applications are covered by the Ultra-wideband spectrum (3.1-10.6 GHz). Small and low-cost antennas can deliver high efficiency in both time and frequency domains. In emerging wireless systems, especially Ultra-Wide Band Multiple Input Multiple Output based terms, the trend has been to design compact and low-profile integrated circuits that are functional with portable wireless devices. In order to meet mobile network requirements, UWB-MIMO technology platforms have antenna parts that are simple, small, and have appropriate impedance bandwidth and isolation UWB with MIMO resulted in a high data rate and overcame the multipath propagation problem. The primary goal of this review is to compare and contrast various UWB-MIMO technologies-based antennas with enhanced isolation approaches and band rejection techniques on a single platform.