NEC-LIST:Re: nec2 newbie question: Biconical antenna

At Thu, Oct 17 2002 [08:42 +0200], Davor Virkes aroused my curiosity with:
Hello,

thank you for all your answeres - I haven't expected so much resonance :-)

> >The antenna should be connected to a spectrum analyzer via BNC or
> >N-Connector (50 ohms).

> Discones are much better suited for excitation with coax, and are easily
> built. In this configuration, it could be designed as a snap-on, and used
> as a handy reference antenna for signal level measurements eg. for micro
> and pico cells.

Indeed, the antenna should be used as a reference antenna for signal
level measurements and it should work in a frequency range from 890MHz
to 960MHz. The frequencys around 1800MHz are nice to have, but
actually our equipment can't be used with these frequencies and we
can't buy better ones from our budget - that means I will concentrate
in the range from 890MHz to 960MHz.

Now, you made me curious about the discones. Is it possible to
simulate a discone with a solid surface in nec2? Do I have to increase
the nuber of wires until a certain point, when the wire-model behaves
nearly like a model with a solid surface?

Again, thank you for your answeres and for pointing out the errors
I've made in the nec-file that I've attached in my first mail - you're
great :-)

@Davor: What do you mean by snap-on? My dictionary returned "No matches
found" ;-)

Tschoe,
Steff

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