Paul,
yes building a 'real' open line t-line in NEC works quite well.
If you want to measure the characteristic impedance make is 45 deg long and
measure the reactive portion of the input impedance. This is the line
characteristic impedance.
Dave WX7G
On Thu, Sep 24, 2009 at 10:15 AM, Paul Decker <kg7hf@comcast.net> wrote:
>
>
> Hi Group,
>
>
>
> Using EZ-NEC, is it reasonable to model an open wire feed line, for example
> a 600 ohm ladder line using two parallel wire segments shorted at each end
> by two other wire segments, one end being the source, the other being the
> load?
>
>
>
> I know I can add a transmission line and change the impedance, but what
> about if I'm modeling the "special" transformation properties of specific
> lengths of transmission lines?
>
>
>
> If not, how is this done?
>
>
>
> thanks,
> Paul (KG7HF)
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