jabidof
Member level 5
Hello everybody,
Here is one question about differential antenna, e.g. dipole, folded dipole, etc. In order to measure properly such an antenna using a network analyzer, one has to design a balun dedicated to single to differential signal conversion. Then a TRL based calibration is used to get the s-parameter at the correct reference plane, i.e. at the differential antenna input.
What happens if we do this measurement without the balun? I guess the signal at the input is not perfectly differential but what are the quantitative/qualitative impacts?
Thanks for your comment.
Here is one question about differential antenna, e.g. dipole, folded dipole, etc. In order to measure properly such an antenna using a network analyzer, one has to design a balun dedicated to single to differential signal conversion. Then a TRL based calibration is used to get the s-parameter at the correct reference plane, i.e. at the differential antenna input.
What happens if we do this measurement without the balun? I guess the signal at the input is not perfectly differential but what are the quantitative/qualitative impacts?
Thanks for your comment.