- #1
prelic
- 14
- 0
Hello all,
I'm not sure if any of you have ever used a device that measures RF transmission line loss and presents it as a graph of Insertion Loss (dB) vs. Frequency (GHz), but that is exactly what I'm trying to calculate. I've been looking through equations for days, and I just don't understand how these tools work. The equation I see everywhere for Insertion Loss is IL = 10 * log_10(P_t/P_r) where P_t is the transmitted power before insertion, and P_r is power received after insertion. But if power isn't a function of frequency (only impedance, current, and voltage), then how are they related/calculated? I'm a software engineer, so my knowledge of this kind of this is limited, but I'd really appreciate if someone could help me understand!
Thanks again!
I'm not sure if any of you have ever used a device that measures RF transmission line loss and presents it as a graph of Insertion Loss (dB) vs. Frequency (GHz), but that is exactly what I'm trying to calculate. I've been looking through equations for days, and I just don't understand how these tools work. The equation I see everywhere for Insertion Loss is IL = 10 * log_10(P_t/P_r) where P_t is the transmitted power before insertion, and P_r is power received after insertion. But if power isn't a function of frequency (only impedance, current, and voltage), then how are they related/calculated? I'm a software engineer, so my knowledge of this kind of this is limited, but I'd really appreciate if someone could help me understand!
Thanks again!