Re: NEC-LIST:MSAs in NEC

I came across this on my travels, I have not used it at all but it may
help anyone trying to model MSAs

http://intek.e-technik.fh-kiel.de/splitt/html/mstrip.htm

Regards,

Russell.

Graham Kinch wrote:

> I know I'm over looking the obvious here, but if someone could point out
> the obvious to me it would be much appreciated!I have simulated a 435MHz
> microstrip antenna in 'Ouray Microstrip Antenna Designer' software. This
> software is based on the Cavity Model. When I try and simulate the
> dimensions suggested in Ouray in NEC software it simply doesn't work, I
> get very strange results such as positive return loss! The software I'm
> using is Win NEC Pro and Super NEC, both NEC2 based programs. I'm also
> trying to simulate a plate antenna in both and getting very similar
> results. The solid plates in both the microstrip and the plate antennas
> are simulated in both pieces of software as wire meshes, with the wire
> spacing of the mesh less than 1/10th of a wavelength. To the software
> this appears to be solid. The problem is that in both antennas the
> distance between my ground plane and the plate is much less than 1/10th
> of a wavelength, approximately 10mm. Could the problem be that the NEC
> software assumes that the ground plane and top plate are one solid
> structure with no gap between them? Can microstrip antennas even be
> simulated in NEC?Any suggestions would be much appreciated. Graham KinchDublin
> Institute of Technology.
>
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>
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-- 
Russell Iain Macpherson
Electromagnetics Research Group, Department of Engineering
University of Aberdeen, Scotland, UK.
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