How can I draw the following figure in latex

For a starting point.

documentclass[margin=3mm]{standalone}
usepackage{tikz}

begin{document}
begin{tikzpicture}

node[draw, fill, minimum width = 0.5cm, minimum height = 0.5cm, rotate=45] (N)  {};
draw [thick]([xshift=-1mm]N.135)--++(180:2) ([xshift=1mm]N.-45)--++(0:2);

end{tikzpicture}
end{document}