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MD Circuit Elements
Beginning from the perspective of the one-port circuit elements described in the last chapter, it is not difficult to see how such elements can be generalized to a multidimensional setting. Consider again the inductance and its WD one-port equivalent, shown in Figure 3.4.
Figure 3.4:
Inductor and its wave digital one-port.
![\begin{figure}\begin{center}
\begin{picture}(210,90)
% graphpaper(0,0)(210,90) ...
...130,30){\small {$R\! =\! \frac{2L}{T}$}}
\end{picture} \end{center} \end{figure}](img642.png) |
The voltage across the inductor is integrated and scaled by a factor
to yield a current. The fact that the signal flow graph for the WD one-port equivalent is causal indicates that the inductor one-port is associated with the forward time direction. In the multidimensional case, the concepts of a direction associated with a circuit element and causality become crucial.
Subsections
Stefan Bilbao
2002-01-22