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Hfss And Optimization

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45 Threads found on Hfss And Optimization
Dear all, I am a beginner. I need some opinion/help. Here is my situation. I am designing a transformer matching network (TMN) for a PA. I do not have ADS PDK but working in CADENCE PDK. My question is do I have to design layout in CADENCE then export gds file to E.M software such as hfss/ADS momentum for electromagnetic simulation and
Hello, hwo can help me? Do the S parametrs change after optimization?
Dear all I'm try to simulate a branch line couple in frequency band between 10.5-11.3 GHZ on substrate Rogers (h=0.508mm). the problem I have is that after optimization I can not get the -3dB amplitude in both port 3 and 2. the results are indicated in attachment. can anyone help me to find the solution? any support from you will be (...)
hi i am designing a wave guide whose side walls are sinusoidal corrugated. the corrugation of the walls depend on several parameter parameter, one is called delta which supposed to be very small. i design a matlab code that generate the same result of hfss but only for small values of delta, and an upper bound on value of delta need to be known b
For CRLH unit cell length optimization, which parameter i must select.. and also provide me with some examples for deeper insight
Hi all I designed a planar antenna that would be a unit cell for a 4×4 phased array. My PC resources are limited and I want to know what configuration i may use in order to speed out simulation and optimization of the array's parameters.
Hi everybody, My name is Ngoc, I am the third year student at Ha Noi University of Science and Technology in Vietnam. I am having a project about "optimization for antenna using hfss simulation through hfss API". My trouble is now when i export data under Excel or Matlab table from hfss result, i dont have (...)
You could give a go to this: Have fun!
There are two questions here: 1) We know that it is easy to determine the 10-dB bandwidth by using the XWidthAtYVal(-10) function in the simulated return-loss plot. Thus when I try to achieve a 10-dB bandwidth larger than 50 MHz, I set an optimization goal like XWidthAtYVal(dB(S(1,1)),-10)>=50e6. Everything goes OK until the second (...)
"Hi , I am just beginning to use ansys-hfss to design a circular waveguide and I would optmize its dimensions to get the S-parameter i want. Is it possible to do that without groping along ? Something similar to the optmization on ADS maybe... Thank's for your help," ... I did find how to do an optimization. But it says that my
Do you have a 32bit version of hfss installed?
1. "?plot filed? options are gray, why? " you forgot to save them, or you started an optimization sequence which can not be plot. Try to solve CW only once to see the port distribution. In my experience, making a non-obj. cross-section and plotting vector fields there gives more information. 2. Seems, Zo is not that is told in the help. I bel
i am a beginer on hfss tool and i am ... i am not getting exact value we have take for the corporate feed network so plz tell me how 2 design a corporate feed network for 2*2 array patch ..plz plz do help me... and i am facing problems in optimization also so plz help me
How to set up the Goal in optimization setup in hfss in this case: the antenna is on xy plane, i want to find the value of a variable so that the antenna is Omnidirectional in yz plane I don't know how to set up the goal, the condition.. in optimization setup menu Thank you very much!
Respected all, Hello. I am designing a stacked and slotted antenna using IE3D. the same structure when i simulated with FEM based hfss, gave me four resonances, the result of IE3D is also giving me four resonant points, but the problem is that the RL at two of the four frequencies is less than (above) -10dB. So i decided to assign the probe fee
I would like to contact someone with experience in CST studio (or hfss, Ansoft Designer) for antenna simulation and optimization. Anyone interested in freelancing for CST studio? Cortes.
u can use hfss GA for your aim and if u want u can load hfss with matlab in each part of your GA matlab can call the hfss for optimization and i cant understand what do u mean by telling the relation of s parameter and GA ????
no if u want to optimize,u should draw it in CST or hfss
Hi all, I want to optimize a waveguide to coax adapter. If I want to get minimum return losses at a certain frequency, what should be the goal and calculation (mag of S11 or dB S11) in optimization Setup? Thanks in Advance
can anyone help me exporting field data from hfss i know there are several threads similar but here i have a different problem i need to export field data (actually current density) to matlab but i need to work with variables im making optimization for an antenna structure and the optimization in made in matlab (...)
Hi, I did not understand your question. But yes you can optimize a variable in 'hfss' using 'Parametric setup option'. If you do not know much about it. Search about it on this forum or post your question with a bit more elaboration here and i will try to help you. /SC
Hi sarar441, you can use optimetrics option in hfss for optimizing to get desired frequency.
I have draw a model of a FET with a silicon layer, bulk oxide, metal, etc. In addition, I have drawn wires which run to contact pads which connect to the source, drain, and gate of the FET. I have excited this model with an incident plane wave of say, 1 V/m. I am trying to find a way to arrange the wires and contact pads in such a way that I g
Whenever I have two or more cost functions in optimization setup, my simulation ends after one variation. For example, if I want to set a cost function for S11, and another one for S21, optimization fails. Whatever design structure I have, I never got it to work. Could anybody help?
Dear all, i need 2 sample hfss projects 1. PBG structure in microstrip patch antenna design. 2. EBG structure in microstrip patch antenna design. hfss file, documentation or EDABoard related link is highly expected. Plz help me. In addition, i successfully implement GA optimization in patch antenna(snpatch) by SuperNEC 2.9. If (...)
I need hfss tutorial for designing and optimization of Quad Helix. Highlight another software for such task as I feel difficult to do this in EZNEC Regards Adeel
Greetings, I need to optimize my structure in hfss to get the best fit between the simulation results and measured one. When, I import the measurement data in hfss and try to make a subtraction from simulation results it seems that hfss does not allow me to do this so. I wonder if you guys to help me (...)
Hi guys, First time to do the hfss optimization to tune a dielectric filter. I set a goal for S11 in a specific frequency range and acceptable cost is set as 0. Widths of the iris are the tuning variables. The optimization finished much faster than I expected. I thought I had a super good luck that already achieved the (...)
Hello, In hfss I need to define a goal function (defined at a certain frequency) that is the absolute value of the difference between s11 and a reference function (which is frequency depended like dB(S(FloquetPort1:1,FloquetPort1:1)). I need to perform the optimization at EACH FREQUENCY IN THE SWEEP, so that that in the "calculation (...)
hello I am in Matlab in a loop where I have to call hfss. I need to: 1. load a project file, 2. change some variables values 3. run the optimization in it 4. export results 5. save project I have this Matlab routine I wrote (mostly guessing) and the hfss test project file attached. Questions: 1. It looks (...)
I wish to optimize an array fro minimum side lobe level.How can I give optimizer a numerical value for SLL in Ansoft hfss Thanks
Hello, I am trying to synthesize a radiation pattern. I would like to use a required pattern data set to be able to define an average difference between the required pattern and the calculated pattern as the goal function. Does anyone know how to import external data in hfss and use it this way? Thanks Katto01
Hi all, The first time using hfss optimization fuction,and when I edit calculation: AxiaRatio: (procedure:Name:AxiaRatio?Report Type item :?Far Fields??solution item? Setup:LastAdaptive?Category:Axia Ratio?Quantity?AxiaRatioValue??Function:),and add in,but in vain.Can anyone tell me how to solve it? Thank (...)
need help about hfss optimization
It is impossible to import any model into hfss from other software for the change of dimensions. You have to build up the model in hfss by parameterization for optimization.
how can make antenna optimization using hfss
I know that people use this : for inductor optimization. I don't know about importing it into a layout for an IC. I'm not sure if that can be done. But I'm sure the inductor isn't that big so you can create it manually. ADS and hfss are good too, but from what I understand the software abov
"BTW a microstrip could easily work in this situation as well. You might not need to shift to cpw to get a good match. " Exactly! No need to bother with (G)CPW at relatively low 6GHz... and (G)CPW port definition in hfss is tricky. Also the meshing at port rectangle must be very fine to get useful impedance. Still I find hfss very (...)
Dear all, Latest version of hfss/Optimetrics has GA optimization
Hello All, Can someone help me with optimization settings. I'm modeling a two pole combline filter with a -20 return loss. The input and output tap points and coupling screw between the resonators variables. Any help would be greatly appreciated! Thank you.
well, saqaw. For your optimization question, I remember in hfss, if you define the variable to change, then on the project tree, you right click the Optimetrics>>add>>optimization... you can setup the goal and the optimization method to fine tuning your project. However, since the antenna radiation (...)
Hi all I've simulated the vertical parallel plate structure for VLSI capacitor using hfss , but i need a program to get the S-parameters & from it it generates spice subcircuit consisting of R L C components like the one generated by sonnet . Thanks & best regards
CST MIcrowave studio and Ansoft hfss have very powerful optimizers but I guess those features cost a lost also. -svarun
Hi hfss can optimizes a project on a single frequency very well , and you can get sweep freq in using the "interpolating",pick out some delegable freq point and optimize.Try CaoCao
filter example hfss

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