All Questions
Tagged with electric-circuits signal-processing
18
questions
1
vote
1
answer
1k
views
Calculating decibel gain and loss
I'm doing a mobile/wireless networking subject and the physics aspect is giving me some trouble. I'm mainly confused about the conversion of dB, dBm and dBW and how to calculate the gain/loss from an ...
4
votes
2
answers
2k
views
What is the physical interpretation of the Fourier transform $(\mathcal{F}Z)(t)$ an impedance?
If I compose a impedances out of smaller ones in series and parallel configurations, e.g.
$$Z(\omega)=i\omega L_2+\tfrac{1}{\tfrac{1}{R_1}\ +\ i\omega C_1+\ \tfrac{1}{i\omega L_2}},$$
then I get a ...
1
vote
3
answers
910
views
Electronic filter
Can you explain, please, step-by-step how an electronic filter does work?
For example, high pass filter. I know It's a trivial things, but I can't get it completely. Don't bring me formula and etc. ...