You wake up on Sunday morning and there's a video from FesZ. You watch him adapt a complex impedance to a well-defined real impedance using bits of coaxial cable. The truth is revealed! FesZ is an extraterrestrial. On a more serious note, the latest videos are very impressive. I can't even figure out the output impedance of my modulators and amplifiers.
You have also to account for losses in the cable and/or choose a low-loss cables for the given frequency. This is why the practical results were different from theoretical
Thank you for your videos, it is very informative! it is hard to find good videos in this topic! One recommendation for impedance matching tool: simsmith, nice and free, developed by an RF hobbist. And one request: if you ever could make a video about impedance matching for wider band I would really appreciate! Everyone makes videos about one single frequency matching, I find it hard to make an impedance matching for an LNA operating not on a single freq but tenth of Mhz.
Very nice topic and good explanation! Are you planning to cover buterfly and radial stubs? As well step impedance filters? Looking forward for your episodes!
You wake up on Sunday morning and there's a video from FesZ. You watch him adapt a complex impedance to a well-defined real impedance using bits of coaxial cable. The truth is revealed! FesZ is an extraterrestrial.
On a more serious note, the latest videos are very impressive. I can't even figure out the output impedance of my modulators and amplifiers.
Very good indeed. A really good presentation leaving wanting more, more, more.
Hi FesZ, yes more details would be awesome! Nice presentation, thank you.
Nicely done as always, Fesz! 👌
You have also to account for losses in the cable and/or choose a low-loss cables for the given frequency. This is why the practical results were different from theoretical
Thank you for your videos, it is very informative! it is hard to find good videos in this topic!
One recommendation for impedance matching tool: simsmith, nice and free, developed by an RF hobbist.
And one request: if you ever could make a video about impedance matching for wider band I would really appreciate! Everyone makes videos about one single frequency matching, I find it hard to make an impedance matching for an LNA operating not on a single freq but tenth of Mhz.
Very nice topic and good explanation! Are you planning to cover buterfly and radial stubs? As well step impedance filters? Looking forward for your episodes!
Super.
Very interesting! Where do you work? Are you a programmer or an electronics engineer?
My day job is that of an electronics engineer
Great spreadsheet. Anyone know how one links in a spreadsheet into youtube comments?
Usually, youtube deletes comments that contain links.. (any links)
Why the 3 dB loss?
lossy transmission line
@@giorgitsintsadze9919 3 dB loss from Just half a meter of coax?
3dB loss is because the source is 50R and the load is 100R. The reactive part is tuned away, but the real parts stay.
👏👏👏👏👏🥇🔝💯
Also the coax cable manufacturers don't tell you that the velocity factor changes with frequency...
Ask ChatGPT "explain how to use a parallel coaxial cable stub to match a source impedance of 50 ohms at some fixed wavelength to a 25 ohm load."