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# Posts tagged Impedance

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5 posts
66%
+2 −0

What does it mean for signals to have impedance? To me, impedance is kinda like an "extended resistance" that also includes phase shift $$Z = R + jX$$It makes sense to me that components like cap...

3 answers  ·  posted 18d ago by Carl‭  ·  last activity 4d ago by jonathan_the_seagull‭

75%
+4 −0

My scenario is this: radio equipment controlling an overhead crane inside a steel mill. Specifically it is used for transporting melting pots. With the current, unfortunate installation, the antenn...

1 answer  ·  posted 10mo ago by Lundin‭  ·  last activity 10mo ago by Olin Lathrop‭

77%
+5 −0

I was watching a video from EEVBLOG about bypass capacitors, and he presented a theory that randomly connecting different values of capacitors in parallel can create unexpected impedance spikes: ...

3 answers  ·  posted 10mo ago by Elleanor Lopez‭  ·  last activity 10mo ago by Andy aka‭

66%
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Suppose we have this circuit which is supposed to be an unbalanced frequency mixer. But how does the diode generate a signal with new frequencies at the output?

2 answers  ·  posted 1y ago by MissMulan‭  ·  edited 1y ago by Peter Mortensen‭

71%
+3 −0

On paper you can measure the input impedance of an amplifier circuit by attaching a voltage source to the input, shorting the output, and calculating the resulting impedance from the voltage and cu...

1 answer  ·  posted 2y ago by jm567‭  ·  last activity 2y ago by coquelicot‭

Question VNA Impedance

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