documentclass{standalone}
usepackage{tikz}
usetikzlibrary{positioning}


begin{document}

    begin{tikzpicture}
    newcommandXOBJ{3}
    newcommandYOBJ{10}
    newcommandscale{0.3}

    path[use as bounding box] (0,-1) rectangle (11.5,12);

    node (rect) at (XOBJ,YOBJ) (OBJ) [draw,thick,minimum width=1.7cm,minimum height=1cm] {OBJ};
    node (MMF) [rectangle, draw,thick,xshift = 2.5cm,minimum width=2.5cm,minimum height=0.5cm,right of = OBJ] {MMF};

    filldraw [red,opacity=0.2] ([yshift=-2pt]OBJ.north east) --([yshift=2pt]OBJ.south east) -- ([yshift=2pt]MMF.south west) -- ([yshift=-2pt]MMF.north west) -- ([yshift=-2pt]OBJ.north east);

    filldraw [red,opacity=0.2] ([yshift=2pt]MMF.south east) -- ([yshift=-2pt]MMF.north east) -- (10,11) -- (10,9) -- ([yshift=2pt]MMF.south east);

    node (N1) [circle,draw, right of = MMF,xshift = 1.2cm,yshift = 0.2cm ] {};
    node (N2) [circle,draw, right of = N1,yshift = 0.1cm,xshift = 0.01] {};
    node (N3) [circle,draw, below right = 0.1 cm and 0.255cm of N1 ] {};
    node (N5) [circle,draw, below right = -0.7cm and -0.2cm of N1 ] {};
    node (N6) [circle,draw, below right = 0.6cm and -0.2cm of N1 ] {};
    node (N7) [circle,draw, below right = 0.6cm and 0.7cm of N1 ] {};

    draw[scale=0.5,domain=-1:4,smooth,variable=x,red] plot ({x+17},{scale*sin(deg(x+4))+17}) node[anchor=east,xshift = -2.5cm ] {Wave 1};
    draw[scale=0.5,domain=-1:4,smooth,variable=x,red] plot ({x+17},{scale*cos(deg(2*x+3))+15.5}) node[anchor=east,xshift = -2.5cm ] {Wave 2};
    draw[scale=0.5,domain=-1:4,smooth,variable=x,red] plot ({x+17},{scale*cos(deg(3*x))+14}) node[anchor=east,xshift = -2.5cm ] {Wave 3};

    draw[scale=0.5,domain=-1:4,smooth,variable=x,red] plot ({x+17},{scale*sin(deg(x+4))+scale*cos(deg(2*x+3)) + scale*cos(deg(3*x))     +12}) node[anchor=east,xshift = -2.5cm ] {Sum};

    end{tikzpicture}
end{document}