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35 Threads found on edaboard.com: Hfss Eigen
Hello, can the hfss eigenmode solver be used for structures which are not completely surrounded by metallic walls? (for instance a parallel plate waveguide, without side walls). If so, what type of boundary should I choose? I tried for rectangular waveguide and the resonance found are those of a rectangular cavity, not of the waveguide (I have TE1
hi everyone i have to design wide band micro-strip equalizer for 8-18 ghz in hfss. can anyone guide me about this. how to achieve this wide band. and if i have to design resonators for this then please guide how to use eigen mode in hfss.. thanks
What is the model you are making if you do not know its working frequency as you always design your model for a particular frequency. But if it is cavity then use eigen Mode solver of hfss and resulting modes will give your resonant frequency of your model but even in that case you have to enter a guess in solution setup.
I am simulating a cavity with fundamental mode frequency at 2.998GHz using eigen mode solver of hfss. For wake filed estimation I need to plot dispersion curves for Higher Order Modes (HOM). 90 degree slice with one PEC and one PMC as boundary condition is used to study dipole modes. First ten Higher Order Modes are studied. Master Slave Bound
i am not clear about your question. But you can use hfss calculator and then you can manipulate your calculated fields the way you want.
Hi As far as I know about working of eigen Mode solver in both CST and hfss they just solve the total geometry mathematically on each defined mesh point. So that name eigen value comes from Linear Algebra or some mathematics which you have very rightly pointed. This is the reason that proper mesh definition is very important for convergence (...)
hi i am new in working on hfss. i wanna draw a metallic helix in a vacuum cylinder. should i subtract helix from vacuum cylinder or just put helix in vacuum cylinder? also i wanna work in eigen mode . how can i obtain phase velocity vs frequency in eigenmode? please help me.
I was wondering if anybody has experience or knowledge of how to simulate a single SRR in hfss to find its resonant frequencies. I am not sure if wave ports would be the ideal case, and if in that case I need radiation boundaries for the region's sides or PEC and PMC. Another approach can be using floquet ports, but padding the unit cell with enoug
Hi, I want to find the resonant frequency of a DGS structure. But hfss is showing two different results, one for Driven modal and the other one for eigen Mode. Can someone say which is the exact resonant frequency and why there is this deviation? I am yielding 5GHz in eigen mode (mode1) and 6GHz in Driven modal solution. Can (...)
Hi eraste, Thanks for your reply, this maybe a silly question but how would i go about finding those modes? I already tried to solve my sphere in hfss eigenmode however the simulation never solved since it ran for over 24 hours. Thanks again.
Hey all! Who has tried eigen solver for CPS in hfss? I am trying to get the attenuation experienced by the signal operating at 28Thz. kind rgd manenef
Hi, I have calculated E field and stored energy in a cavity using hfss eigen mode. So maximum delta (resonant) frequency is used as convergence criteria in this mode. Now there is a question: How E field or stored energy can be used as convergence criteria in eigen mode?
Hi, can anyone let me know that which solution type (hfss eigen, hfss driven mode ) should be used for hfss and Ansoft designer cosimulation. Another problem is i am trying to import a hfss model in the ansoft designer but the variables used in hfss model are not being allowed to be tuned or (...)
Hi, I just added the support for multi-core simulation to my hfss license file. It now supports 8 processors/cores. I changed the corresponding settings in hfss option/solver to 8 processors. If I put 9 processors there, the license server will complain, so I guess the setting and license server are configured correctly. But when I actually r
Hi Everybody, My question may be too easy for few people in this forum but it would be of great help to me if you can show me way forward. I modeled pillbox cavity(cylinder) in hfss to calculate eigen frequencies at first five modes. Now I would like to export location of nodes as well as corresponding coefficients of ansatz function in
If you want to connect two structures in hfss using wires, I used bond wire connections and eigen-mode solution is used to find the resonant frequencies of the structure.
I would like to know the procedure for calcultaing the eigen mode dispersion diagram in hfss for a split-ring resonator structure which doesnt have a ground plane..Please help.
Hi! "With lump port=> the excitation is applied at a point/cell, as a voltage or current. With wave-port=> the excitation is so-called eigen-wave, such as the quasi-tem wave supported by a microstrip line. It applies over a cross-sectional area. voltage is scalar, wave is vector by nature, hence there are substantial difference between the two
I am designing a five-orders mirostrip combline filter on a 1.27mm thick substrate with a relative dielectric constant of 10.8. I let the microstrip resonators be lambda/4 long and require no capacitive loading for this filter design. There is a metal vias to ground at the end of each resonator. Step 1: extract coupling coefficient between two re
Hi guys, I am using hfss to design a 4-pole coaxial cavity filter. Now I am in the last step designing the feedline of the filter. (please see the pic.) I set a PML boundary on the coaxial line and sweep its "height" to achieve a desirable Loaded Q. Equations QL=sqrt(im_f^2+re_f^2)/(2*im_f), im_f=(im(Mode(1))+im(Mode(2)))/2


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