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.
make sure you converge for very low deltas. better even look at the variation of z11 rather than S. something like delta s of 0.002 may be better for inductor. if results are far off, something is wrong with geometry..
Go to HFSS/design settings/S parameter definition - choose "power".
You can also specify complex impedance defining the impedance as: 12 +1i*140. this should work (from 18.1 I think)
also , go after a recent version of hfss.
first the mesh/solver has significantly speed up.
2nd: you ll get a free antenna design kit for synthesis and design witt a parameterized yagi uda included.
Hfss Fem solution usually don t need any mesh operation . The adaptive mesh will do the job much quicker than what you ll take to figure out what is the best set up.
if you are beginner , don t play with the mesh ..and if you re experienced probably don t do either.
You can make the simulation...
If you final want rfs, go for inc wave instead . You can set multiple angles at once . Go for the exemple in hfss i.e. Example directory there is some rfs example .
You should use inc wave and use spherical definition where you can set multiple angles.
In fra field plot choose rfs vs iwavephi . Be aware that maybe the default is phi
many answers to this:
1/ if you need to do regularly large model , go for more ram- 16GB - what OS is using is not a lot..
2/ try to reduce the model size with symmetry.
3/ turn on the iterative solver to reduce Ram usage.
4/ if you only model wate as a parasitic effect and only want to be...
two other options :
you can also check with a lumped port then connect the hfss model in the circuit part then replace it with any impedance model without resolving.
also with v18+, you can renormalize with any complex impendance as a post processing.
try hfss. it is best frequency domain fem solver. you can include discrete component too in the fem solution or as external discrete component solved in the integrated circuit solver . Maxwell is an alternative only if you work with non linear ferromagnetic material. if you work with non...
Hfss includes both a 3D and a layout driven interface. In the layout , you can solve with either 2.5DMom of FEM. You can compare for the same design. 2.5D can be a bit faster if you neglect thickness but the Fem solution is faster when you consider 3D ( metal thickness or via radius). Also Fem...
15 years ago, computers used to have a small amount of memory say 1-2GB and FEM uses more RAm so it could be a pb on large model .
It depends on your application but most application I am familiar with such as antennas, microwave components, Fem beats fdtd.
you should use a lumped port. on a single port model, you can simply get the inductance from im(z11)/2pif. make the airbox around at least 3 times the inductor size. if you make driven terminaldesign, you cna specify the voltage level at the port.
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.
