使用 circuitikz 的两个子图彼此相邻

Question

我有一个无法解决的问题。我想让两个电路彼此靠近，而不是彼此叠在一起。这是我的代码

\documentclass{article}
\usepackage{caption}
\usepackage{subcaption}
\usepackage{circuitikz}

\begin{document}

\begin{figure}
\centering

\begin{subfigure}[b]{0.4\textwidth}

\begin{circuitikz}
\draw   
(0,2) to [american controlled current source, l=$g_m V_{GS_1}$](0,0)
(2,2) to [R, l=$r_{o_1}$] (2,0)
(3.5,2) to [american controlled current source, l=$g_m V_{GS_2}$](3.5,0)
(5.5,2) to [R, l=$r_{o_2}$] (5.5,0)
(0,2) to [short, -o] (6,2)
(0,0) to [short, -o] (6,0);
\end{circuitikz}

\caption{with $r_o$}
\end{subfigure}

\begin{subfigure}[b]{0.4\textwidth}

\begin{circuitikz}
\draw   
(0,2) to [american controlled current source, l=$g_m V_{GS_1}$](0,0)
(3,2) to [american controlled current source, l=$g_m V_{GS_2}$](3,0)
(0,2) to [short, -o] (4,2)
(0,0) to [short, -o] (4,0);
\end{circuitikz}

\caption{with no $r_o$}
\end{subfigure}

\caption{DC small signal model}
\end{figure}

\end{document}

有人能帮我弄清楚如何将两个电路放在一起而不是叠在一起吗？

Answer 1

像这样 ？

只需删除两个subfigure环境之间的白线，并添加一个空格来分隔它们\hspace。

\documentclass{article}
\usepackage{caption}
\usepackage{subcaption}
\usepackage{circuitikz}

\begin{document}

\begin{figure}
%\centering

\begin{subfigure}[b]{0.4\textwidth}

\begin{circuitikz}
\draw   
(0,2) to [american controlled current source, l=$g_m V_{GS_1}$](0,0)
(2,2) to [R, l=$r_{o_1}$] (2,0)
(3.5,2) to [american controlled current source, l=$g_m V_{GS_2}$](3.5,0)
(5.5,2) to [R, l=$r_{o_2}$] (5.5,0)
(0,2) to [short, -o] (6,2)
(0,0) to [short, -o] (6,0);
\end{circuitikz}

\caption{with $r_o$}
\end{subfigure}\hspace{3cm}% <-- no space between subfigure 
\begin{subfigure}[b]{0.4\textwidth}

\begin{circuitikz}
\draw   
(0,2) to [american controlled current source, l=$g_m V_{GS_1}$](0,0)
(3,2) to [american controlled current source, l=$g_m V_{GS_2}$](3,0)
(0,2) to [short, -o] (4,2)
(0,0) to [short, -o] (4,0);
\end{circuitikz}

\caption{with no $r_o$}
\end{subfigure}

\caption{DC small signal model}
\end{figure}

\end{document}