EEVblog Electronics Community Forum
Electronics => RF, Microwave, Ham Radio => Topic started by: w2aew on July 17, 2017, 06:10:57 pm
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My latest video shows how the Smith chart on a VNA can be used to visually see the operation & function of a typical transmatch (antenna tuner):
https://www.youtube.com/watch?v=f8wJ0io95RE (https://www.youtube.com/watch?v=f8wJ0io95RE)
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Yes please to a further video explaining the Smith chart in more detail (along with transmission lines of course)
Cheers,
Matt
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The Smith Chart video will be relatively short, they are fairly simple and very handy.
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The Smith Chart video will be relatively short, they are fairly simple and very handy.
Hmmm - well, if I want to explain what each of the 7 scales of the chart are, plus the 10 or 11 radially scaled axis - that would be a decent length video itself. Then, explaining how to plot complex values, how they "move" with frequency or added transmission lines - another decent length video. Of course, then we should talk about impedance matching, using lumped elements and stubs - that's a few more videos... I've been trying to mentally parse the list of topics to start formulating my videos...
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The Smith Chart video will be relatively short, they are fairly simple and very handy.
Hmmm - well, if I want to explain what each of the 7 scales of the chart are, plus the 10 or 11 radially scaled axis - that would be a decent length video itself. Then, explaining how to plot complex values, how they "move" with frequency or added transmission lines - another decent length video. Of course, then we should talk about impedance matching, using lumped elements and stubs - that's a few more videos... I've been trying to mentally parse the list of topics to start formulating my videos...
This sounds like a very good plan :D
I have recently gotten into the RF side of things and I can't stress enough how welcome this would be. I'm not usually very verbal but I like your take on things. Recently watched the reflected pulse coax one. :-+
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The Smith Chart video will be relatively short, they are fairly simple and very handy.
Hmmm - well, if I want to explain what each of the 7 scales of the chart are, plus the 10 or 11 radially scaled axis - that would be a decent length video itself. Then, explaining how to plot complex values, how they "move" with frequency or added transmission lines - another decent length video. Of course, then we should talk about impedance matching, using lumped elements and stubs - that's a few more videos... I've been trying to mentally parse the list of topics to start formulating my videos...
I forgot about all that, being an RF tech I tend to take some things for granted. :)