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Another choice U can try XFDTD

You can refer to the ebook on broadband compact antenna ...by Wong

I use Ensmble (2.5D) but for 3 D structures use CST, probably the best one.

Regards

Lupin

Ansoft has a tool for 2D and 2.5D simulation, not very expensive. ADS has a package called momentum, which can also be used to this kind application. For omnidirection antenna, if it is in 3D, I believe HFSS is an excellent tool. You can of course find some FEM programs to this kind of job. You just need time.

There is another inexpensive software call winenc that you may like to try...

I think Sonnet is not good for antenna design.

Try EM Picasso, It is supposed to be just for PCB Antenna design

Phil 8)

try empire, it will be fine...

Are you referring to only microstrip antenna?

I have missed out on the above topics...Many are not answering the questions....

you find some usefull applications on transciever chip firms like chipcon ( www.chipcon.com )

Hi loucy

If you can define a right Box, you can get a perfect result with S*nnet.

Hi Sugm,
just a question about Sonnet.
Is possible radiation pattern optimization in terms of polarization Purity or shaping of the beam?

Thanks in advance
Lupin

I think all of 2.5D EM tools can't do it

Some software are optimized for a specific type of Antenna:
-E/m/p/i/r/e is a very good FDTD and I've used it to Design 7.8GHz and 56GHz Dielectric Resonator Arrays. The problem is that with FDTD the boundary conditions for open space is a pain, so I suggest U to use this software only for very high frequencies....Consider that radiaction diagrams need a post elaboration...
-E/n/s/a/m/b/l/e is a MOM and works quite well with patches and planar antennas (Vi's and FinLines)....not so good with solids.
-HFSS is universal...but complex.
_the fourth choiche is to write a simple mat lab simulator...for low frequencies the Balanis' book offer several techniques useful to build a simple simulator even for complex structures....
Once chosen the structure and the Typology U try to ask again...

empire is not good!
CST is more better than empire.
but I think HFSS is the best!

For my and my friends' experience, I can say that for what concerns 3D e.m. softwares CST is accurated for closed structures (better than HFSS), HFSS is better for radiating structures...better in terms of accuracy.
However if your e.m. design is not too complex you can easily use Ensemble, Sonnet, MWO.

Regards
Lupin

Hi everybody,
I want simulating a monopole antenna ,which is printed over a dielectric substrate,above a finite size ground with the software superNEC. How can I do it well? Especially, how to place the dielectric substratel?thanks!

I think SuperNec does not support GF. So you can't model printed antenna over dielectric substrates. However, you can try to make use of the new wire coating feature available. Bad news is, as I understand from the documentation, to use this method, you need to model the antenna first using the green function, find out the influence of the dielectric on antenna impedance and apply the coating parameters to the monopole . :(( ?

Element7k