抵抗減衰器設計
パイ形減衰器設計
\begin{align}
&R_1=Z_0\frac{1+S_{21}}{1-S_{21}}\\
&R_2=R_1\\
&R_3=\frac{2R_1}{\left(\frac{R_1}{Z_0}\right)^2-1}
\end{align}
T形減衰器設計
\begin{align}
&R_1=Z_0\frac{1-S_{21}}{1+S_{21}}\\
&R_2=R_1\\
&R_3=\frac{Z_0^2-R_1^2}{2R_1}
\end{align}