The research of port extension and de-embedding based on vector network analyzer

摘要

Focuses on the principles and applications of the port extension and de-embedding function of vector network analyzer. Firstly, the reason why we used port extension and de-embedding, both with the principle of the two functions, were discussed. Then we use them to measure a filter with standard coaxial connector and a filter made by micro-strip. In the measurement of the filter with standard coaxial connector, we add a 3db attenuator. And the result of measurement shows that the function of port extension removes the effect of attenuator very well. In the measurement of the filter made by micro-strip, we use the function of de-embedding. It can be used in both ports, and remove the effect of fixture very well.