- #1
fisico30
- 374
- 0
hello forum,
I am trying to read and learn about balun. Some transmission lines are said balanced while other unbalanced...
In a balanced transmission line the voltage on one wire is always as big as the voltage on the other wire but 180 out of phase.
For example wire 1 is at 50 V while wire 2 is at -50 V...Are these two voltage readings measured in reference to a 3rd reference wire/metal?
I am not sure I fully understand the idea of unbalanced transmission line. Voltage is always measured between two points. Would wire 1 in an unbalanced transmission line show +50 V with respect to the 3rd reference while wire 2 always 0 volts with respect to the 3rd reference metal?
A coaxial cable is an example of a unbalanced line. One of its conductor is always connect to Earth ground. But voltage is a relative concept at the end...
Can someone clarify these ideas please?
thanks,
fisico30
I am trying to read and learn about balun. Some transmission lines are said balanced while other unbalanced...
In a balanced transmission line the voltage on one wire is always as big as the voltage on the other wire but 180 out of phase.
For example wire 1 is at 50 V while wire 2 is at -50 V...Are these two voltage readings measured in reference to a 3rd reference wire/metal?
I am not sure I fully understand the idea of unbalanced transmission line. Voltage is always measured between two points. Would wire 1 in an unbalanced transmission line show +50 V with respect to the 3rd reference while wire 2 always 0 volts with respect to the 3rd reference metal?
A coaxial cable is an example of a unbalanced line. One of its conductor is always connect to Earth ground. But voltage is a relative concept at the end...
Can someone clarify these ideas please?
thanks,
fisico30