documentclass[border={10pt}]{standalone}
usepackage{tikz}
usetikzlibrary{patterns}

begin{document}

 begin{tikzpicture}[thick,>=latex,->]

    begin{scope}
    clip(-5,2) rectangle (5,-5);
    filldraw[white] (-4.3,4.3) rectangle (4.3,0);
    draw[double distance=1.6mm] (0,0) -- (3,-3) node[midway,xshift=4mm,yshift=2mm]{};
    draw[double distance=1.6mm,dashed] (0,0) -- (0,-4.24) node[midway,xshift=4mm,yshift=2mm]{};
    draw[draw=black,fill=white,dashed] (0,-4.24) circle circle (.3cm);
    draw[double distance=1.6mm,dashed] (0,0) -- (-3,-3) node[midway,xshift=4mm,yshift=2mm]{};
    draw[draw=black,fill=white,dashed] (-3,-3) circle circle (.3cm);
    draw[fill=white] (-1.2,1.0) -- (-.5,0) arc(180:360:0.5) -- (1.2,1.0) -- cycle;
    draw[draw=black,fill=white] (0, 0) circle circle (.3cm);
    draw[draw=black,fill=white] (3,-3) circle circle (.3cm);
    draw[pattern=north east lines] (-1.4,1.3) rectangle (1.4,1);
    node at (.3,-.8) {$theta_{d}$};
    end{scope}

end{tikzpicture}

end{document}