I never intended to add a Smith chart to my S-parameter plotter. I can appreciate how useful they must have been before computers, but I don't see their value today. A computer program, especially one with automatic optimization, can make quick work of a complex matching problem. However, since I see references to Smith charts here all the time, before I dismiss them I thought I should ask why people use them. What do they offer that rectangular plots versus frequency don't?
Brian
