On 04/03/2011 13:48, Olin Lathrop wrote:
> It is.  That's exactly the point of a balun.  It adds impedence to the
> unwanted common mode signal while adding as little as possible to the rea=
l
> differential mode signal.
>
> Baluns are often used in RF applications as single ended to differential
> converters.  For example, the final transmitter output could be single en=
ded
> with respect to ground.  That works fine for the transmitter and for a
> single ended antenna such as one that relies on a ground plane.  However,=
 if
> you have a symmetric antenna you want both sides with equal and opposite
> signals with respect to ground.  A balun between the transmitter and such=
 a
> antenna achieves that for various levels of good enough.
>
I vote that Olin knows what he is talking about on this.


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