An indispensible tool for solving transmission line and waveguide problems, the Smith chart was invented in 1939 by Phillip H. Smith as a graph-based method of simplifying the complex math (that is, ...

You have probably heard the statement about standing wave ratio: “I changed the length of the transmission line and reduced the SWR.” Or the opposite statement, “I changed the length of the ...

An article (called “How does a Smith chart work?“) that I wrote for our July 2001 edition has come back to haunt me, as several readers this week have called it to my attention. These readers' ...

Impedance matching is easy if you know the basics. Download the eBook to find out how. What you’ll learn: Plot complex impedances on a Smith chart. Determine SWR from the Smith chart. Determine the ...

The Smith chart is a staple for analyzing complex impedance. [W2AEW] notes that a lot of inexpensive test gear like the MFJ-259B gives you complex readings, but fails to provide the sign of the ...

[Ralph] is excited about impedance matching, and why not? It is important to match the source and load impedance to get the most power out of a circuit. He’s got a whole series of videos about it. The ...