Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
You must enter right parameters for EM simulation, every increase numbers of cells increase time of simulation several times.
EM algoritms like FDTD (XFDTD,ZELAND,CST MWS,ANSOFT) are very robust and you must have very fast processor or processors.
If you are beginer try with algorithm based on Method of Moments. One programm based on this algorithm is NEC, it's faster several times then FDTD based programms.
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.
can anybody tell me if there are any antenna design tools availbale for PCB or simple antennas for 868 915 Mhz bands. or does any body have a design for good omin directional antenna's for these bands
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...
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.
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
wq said:
Hi everybody,
I want simulating a monopole antenna ,which is printed over a dielectric ubstrate,above a finite size ground with the software superNEC. How can I do it well? Especially, how to place the dielectric substratel?thanks!
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
( ?? 
