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We try to match the output of the amplifier to a 20 m termination.
The matching network design procedures
- Locate normalised admittance for on the Smith chart as point . Since
. The normalised admittance should be at .
- With a section of 50 line, convert the admittance until it has unity normalised
conductance, point A as the Figure shown, i.e. Transfer the admittance, toward the generator, until it meets the unity
- Add a parallel short-circuit stub section to cancel the susceptive part, i.e., Transfer
from short-circuit to point B, toward the generator.
Figure 20: Output matching design with the aid of Smith chart