hello DB,
I havent looked at the model yet..
But i did read back...
Could it be: what you are running into is the aspect of time...and a 2d screen.
Besides thinking "3D" there is another aspect...which is time.
We know the combined EM field produces our "far field pattern".
The "total field" you are referring to is correct (as you suggested).
That field is made up out of that vertical and horizontal component.
Those two have a relation.
So if the total field is the sum of both...You can not expect that the horizontal plane would be similair to it... as it is : total minus the vertical.
To provide an indication of either means you need to illuminate the other.
.....but that is .... within 1 cycle...
Now since it a "cycle" there will be a point where it is zero ...and a point where it is max.
If you would use a time domain solver....you could see the "horizontal" or "vertical" component "moving" in amplitude
Take a look at ...roughly 30 seconds ...
Method of Moments (MoM) vs. Finite-Difference Time-Domain (FDTD) antenna
[MEDIA=youtube]XaKHPXo9D5E[/MEDIA]
That gives an impression of 3d in time.
4nec2 and eznec etc, dont allow you to use "time domain".
You will need FDTD programms, there are a few "open source" but it is a steep learning curve to use ( i dont).
Does that sound plausible to you ?
PS, i did "catch" up on NEC5 but nothing more...as im not really bussy with modelling at present times.
