\documentclass[twocolumn]{article}
\usepackage{subcaption}
\usepackage{graphicx}
\usepackage{lipsum}% for dummytext. do not use in real document.
\begin{document}
\lipsum \lipsum[1]
\begin{figure*}
\begin{subfigure}{\textwidth}
\includegraphics[width=\textwidth, height=3cm]{example-image}
\caption{}
\end{subfigure}
\begin{subfigure}[b]{0.45\textwidth}
\includegraphics[width=\linewidth, height=3cm]{example-image}
\caption{}
\end{subfigure}
\hfill
\begin{subfigure}[b]{0.45\textwidth}
\centering
\begin{tabular}{|c|c|c|c|}
\hline
1 & 2 & 3 & 4\\
\hline
1 & 2 & 3 & 4\\
\hline
1 & 2 & 3 & 4\\
\hline
1 & 2 & 3 & 4\\
\hline
\end{tabular}
\caption{}
\end{subfigure}
\caption{This is a caption.}
\end{figure*}
\lipsum \lipsum
\end{document}