#933 Parallel Resistance Reactance Circuit

Episode 933
A viewer wanted to see what a parallel circuit does on the Smith chart. I show a 100 ohm resistor in parallel with a 288pf capacitor to ground.

[NeWtz]

I finally got around to watching this and your #930 Advanced Smith Chart video. Thanks for those. Smith charts make a lot more sense to me and I can now stop skirting around the topic when I'm having my fun in ham radio.

[tomstrum]

Thank you for this Video !! 50+ yrs of electronic work just never involved VNA's & your Well done video finally made L & T Network impedance networks finally "Click" my better understanding.... You have Rare great calming instructional talents that tech & Institutional schools Should model from.... Better educated students with a real feeling grasp of the subjects would certainly

[miguelmiguel]

50-50i at @10 Mhz is 50R series with 318pF, in admittance the same point is 0.1-0.1i, that is (50-50i)^-1, is 100R parallel with 159pF. I don´t know if nanoVNA or your VNA can be read directly in admittance units. I have made very accurate capacitance measurements with capacitors and varactor diodes with my nanovna. It seems that you need nanosaver with nanovna to read admittances.

[gwc]

In my 42 years of electronics engineering work I have never seen a Smith chart.
They look very complicated to fully understand.
1. You are very knowledgeable in this area. Where did you learn this; school, work, hobby?
2. Do you have a good source for info on antennas, specifically I would like to know how the instantaneous voltages along an antenna relate to the instantaneous electromagnetic field radiated or received by the antenna. Diagrams would be helpful.

[miguelmiguel]

Hi!, can you please check the capacitor value with RLC, should be 115pF, not 288pF

[Antyelektronika]

It is possible that you make the same video but also with VNA, how adding extra component in series or in paraller change chart?, thanks a lot

[johnhanson]

Is it possible to build a 2.0 - 3.55Ghz band pass filter or is the frequency of this wide band not available to us in our home lab?

[miguelmiguel]

Can the nanovna make the same measurement? If I put a 50r with a 47pf capactior at the end of a coaxial nanovna measure a big capacitor, I think that is measuring a serial capacitor.