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# Hfss Eigen

35 Threads found on edaboard.com: Hfss Eigen

## HFSS eigenmode solver for open structures

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

## Calculating Solution Frequency For the Geometry build in HFSS VERSION 13

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.

## Strange Mode in Dispersion Curve with HFSS

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

## Ansys HFSS - Fringing Field Capacitance

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.

## Eigenmode Solver Question

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 (...)

## how to draw helix in vaccum cylinder in hfss?

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.

## HFSS, simulation of a single SRR to find resonant frequencies

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

## HFSS Eigen or Driven Mode to find Resonant Frequency?

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 (...)

## Metallic Spherical Resonator Coupling Between Microstrip Lines - HFSS Simulation

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.

## Eigen solver for CPS

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

## HFSS Convergence Criteria

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?

## Ansoft designer and hfss cosimulation

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 (...)

## Multi-core simulation for HFSS 14?

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

## Extract coefficients of Ansatz function from HFSS(eigenmode solver) to Matlab

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

## urgent help in hfss abt grounding prob

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.

## Eigen mode dispersion diagram

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.

## Lumpport in HFSS...the excitation is applied at a point?

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

## Problems in extracting coupling coefficient (or Qe) curve

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

## "Eigen Q" in HFSS

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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