Now that the pulses are well defined, all that remains unfinished is
to use analysis||S parameters. Specifying the
proper pulses as incident, reflected, and
transmitted, we can produce either S11 or S21, or
both-see figure 6.
The analytical results are found using equations 1,
2, and 3. For a microstrip
2mm away from the groundplane, on a substrate with 
,with a width varying from 2mm to 4mm, we get:
Which produces results within 16% of the numerical simulation. For a
more accurate result we might want to clean up the signals in
figure 3 as well as the parts selected in
Define||Pulses.
