using a length of open-circuited transmission line, we can design a tuning stub to match a 75ohm line to (150-j75)ohm load. What is the distance from the load to place the line, and legth of open circuited line. Do you know any method to solve this, other than smith's chart? of what practical relevance is the design of matching stubs? what factors would dictate your selection of an open-circuited vs short-circuited? Thanks, spectnas