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50ohm-contents-dl/contents/drawings/950.tex
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% Author: Prof. Dr. Matthias Jung, DL9MJ
% Year: 2024
\begin{tikzpicture}
\pgfplotsset{
compat=1.10,
width=\getDarcImageFactor * 16cm,
standard/.style={
axis x line=middle,
axis y line=left,
ticklabel style={fill=white},
set layers=tick labels on top% use layers and choose the new layer set
},
layers/tick labels on top/.define layer set=% define the new layer set based on the standard one
{axis background,axis grid,axis ticks,axis lines,main,%
axis tick labels,% <- tick labels before main
axis descriptions,axis foreground}
{/pgfplots/layers/standard},
clip=false
}
\begin{polaraxis}[
/pgf/number format/.cd,
use comma,
domain=-180:180,
ymin=-0.2,
ymax=1.05,
xmin=-45,
xmax=45,
axis line style={draw=none},
ytick={0.3,0.4,0.5,0.6,0.7,0.8,0.9,1},
yticklabels={,,},
xtick={-40,-30,-20,-10,0,10,20,30,40},
xticklabel={$\pgfmathprintnumber{\tick}^{\circ}$},
xticklabel style={
inner sep=6pt
},
xticklabels={$-40^{\circ}$,$-30^{\circ}$,$-20^{\circ}$,$-10^{\circ}$,$~~0^{\circ}$,$10^{\circ}$,$20^{\circ}$,$30^{\circ}$,$40^{\circ}$},
]
\draw[very thick, DARCred] plot[
variable=\t,
domain=0:360,
smooth,samples=101
]
({40*sin(\t)}:{129*pow(0.95*sin(\t/2),5)});
\draw[very thick, DARCred] plot[
variable=\t,
domain=0:360,
smooth,samples=101
]
({180+40*sin(\t)}:{12*pow(sin(\t/2),9)});
\draw[anchor=base] (0,0) node[](origin){};
\path[every node/.style={fill=white, below}]
(0:30) node {\qty{-6}{\dB}}
(0:60) node {\qty{-3}{\dB}}
(0:100) node {\qty{0}{\dB}};
\path(0:0) -- ++(-40:100) coordinate (E1);
\path(0:0) -- ++(0:110) coordinate (F1);
\path(0:0) -- ++(180:30) coordinate (G1);
%
\fill[fill=DARCblue, draw=DARCblue](-40:30) node[circ](){};
\end{polaraxis}
\draw[very thick]
(origin) ++(0,0) -- +(1.5,0)
(origin) ++(0,-0.8) -- +(0, 1.6)
(origin) ++(0.3,-0.7) -- +(0.0, 1.4)
(origin) ++(0.6,-.6) -- +(0.0, 1.2)
(origin) ++(0.9,-.5) -- +(0.0, 1)
(origin) ++(1.2,-.4) -- +(0.0, 0.8)
(origin) ++(1.5,-.3) -- +(0.0, 0.6);
\draw[very thick] (origin) ++(0.15,0) coordinate(E2) -- (E2|-E1) coordinate (E3);
\draw[very thick] (E3) -- (E3-|F1) coordinate (F2);
\draw[very thick] (E3) -- (E3-|G1) coordinate (G2);
\draw[DARCred](E1) ++(-1.0,0) coordinate(b1);
\draw(b1) -- ++(0.5,0) coordinate(b2);
\draw[thick](b1) -- ++(0.25,0.5) coordinate(geschlechtsteil);
\draw[thick](b2) -- (geschlechtsteil);
\draw[thick](geschlechtsteil) -- ++(0,0.5) coordinate(hals);
\draw[thick](hals) -- ++( 0.25,-0.5) coordinate(h1);
\draw[thick](hals) -- ++(-0.25,-0.5) coordinate(h2);
\draw[thick](hals) to [open] ++(0,0.25) circle (0.25);
\draw[thick](hals) to [open] ++(0,0.125) arc (90:55:-0.45*0.5);
\draw[thick](hals) to [open] ++(0,0.125) arc (90:125:-0.45*0.5);
\draw[thick](hals) to [open, -*] ++(-0.1,0.65*0.5);
\draw[thick](hals) to [open, -*] ++(+0.1,0.65*0.5);
\end{tikzpicture}