> I am mainly interested in the impedance transformation to the 50 ohm
> feedline coax.
Why not just use Alternate SWR Zo = 200 Ohms? That will give you the
50 Ohm SWR after the 4:1 "balun" assuming the balun is a broadband
current balun.
Otherwise, you can use a second short wire, move your source to it,
and place a *1:4 transformer* between that wire and the location of
your original source.
73,
... Joe, W4TV
On 3/25/2024 1:36 PM, David Gould wrote:
I am using Pro/2 v 7.0.
I have been through the EZNEC help and the test drive around the track,
but the examples are all more complex than I am looking for so I am
having trouble getting to the basics.
I would like to model a variation of a centre fed dipole (over a wide
frequency range) that has a 4:1 balun at its feed point. Is there an
example anywhere I could use to copy from?
Currently I am just using a straight wire with the source at 50% along.
Can I develop from this or do I have to split it into two separate wires?
I am mainly interested in the impedance transformation to the 50 ohm
feedline coax.
Any help would be appreciated.
73,
Dave G3UEG
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