pritihiviraj
Newbie level 5
how to find out the electrical length for any feed line for the better impedence matching?
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I just do not understand why the phase of S21 is Beta*d
The phase of s21 is equal to the phase at port 2 relative to the phase at port 1. Since Beta is the rate at which phase changes with distance (measured in rad/m), Beta times the length travelled in meters will give the the total phase incurred.