AbhimanyuSingh
Member level 1
I have a few very basic doubts regarding impedance matching. One or more of them might sound funny to most of you. But if it is so, please clear the doubts.
1. If impedance matching is all about matching the impedance of transmission line with the load, ie an antenna, why is this done only at this junction? Cant there be reflection of signal at other junctions?? like from source to transmission line, antenna to the medium (atmosphere). Y dont the waves reflect at these junctions? Y dont we do impedance matching for them?
2. In a practical case, If the signal comes out of an IC, how am I supposed to know the impeadance behind the pin of IC (if not given in datasheet)
1. If impedance matching is all about matching the impedance of transmission line with the load, ie an antenna, why is this done only at this junction? Cant there be reflection of signal at other junctions?? like from source to transmission line, antenna to the medium (atmosphere). Y dont the waves reflect at these junctions? Y dont we do impedance matching for them?
2. In a practical case, If the signal comes out of an IC, how am I supposed to know the impeadance behind the pin of IC (if not given in datasheet)