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Hfss Curve

86 Threads found on edaboard.com: Hfss Curve

ANSYS HFSS Array Phase Shift

I am not an expert of antenna but but I wonder if it is possible to define the phase of source as some variable and then use that variable to sweep as this is possible in case of master slave boundary condition in hfss where we can define the phase delay as variable then sweep it to get the dispersion curve for RF structures.

how to build a Archimedean Spiral antenna model in HFSS

I am trying to design a spiral antenna (Archimedean) in hfss 15. I have been looking around this forum, there are some post about designs of this type of antenna ,but nothing about how to build the model. It is necessary to use the "draw equation based curve"? do i have to learn to write scripts to disign this antenna?. I would like to know if any

Dispersion Curve calculation in HFSS

Hello everybody, I'm trying to calculate dispersion curve for a metamaterial. So, for the beginning and benchmark, I'm considering a very simple problem which is dispersion curve of free space. As everyone knows the dispersion curve for the free space should be a line with the slope of 45degree. Thus, I consider a vaccum box (epsilonr=1) (...)

De-embeding an arced feed line Using wave port in HFSS !

Hi everybody, I have a micro strip loop resonator with a feed line goes to the middle of the loop (my feed line is curved and shaping an arc at some part of my structure). I know how to use wave port and here I only have one single wave port. My problem is with the length I need to de-embed! I basically set my wave port on the air box (Rad

13.56MHz antenna simulation HFSS(simulation results and actual results are differect)

Hi all Thanks for your help. I'm simulating a curve antenna under 13.56MHz . Thickness is 5um. Width is 76um. 131860 practically, I measured the inductance is 5.5uH. But the simulation result is 300uH with single lumped port. 131861131862 I tried double lumped ports.

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

HFSS number of passes

Can you please clarify me further about the adaptive meshing. My issue is that I have to sweep from low frequency to high frequency range to plot my dispersion curve data. So should I define my mesh with respect to highest occurring frequency or define an optimal starting mesh and hfss will take care automatically for higher solution frequency. A

HFSS Floquet Port circular polarization

Welcome quetranza, I haven't done this before, but I believe you'd have to create your own S-parameter curve definition in the hfss report. It's probably also best to de-embed both ports to the surface, such that you don't have to worry about phasing issues.

how to draw a curve in HFSS

Hi In hfss you can draw the Line structure and then can sweep it if it is symmetrical. You can also play with standard shapes by applying Boolean functions. what exactly you want o draw? - - - Updated - - - Hi I use this way to draw the random curves 1. Using lines draw 2.D geometry. 2. Select the desired f

How to calculate/simulate a rubber ducky spring antenna?

Hello everyone, I am quite confused about the calculation of spring antenna (or rubber ducky antenna defined by Wikipedia). I tried with an online spring/helix antenna calculator to determine the parameters however the results do not seem like a rubber ducky antenna at all. Also, I tried to simulate a such antenna (by measuring its pitch, turns

Helical antenna in HFSS Problem

Hello Here is my design and output result 126200 output 126201 That is too wrong because I expect only a endfire pattern and not two-side lobe and with a back fire lobe. The attachment is my design file ( designed with hfss 15). I excited the antenna with a "Lumped excitation " that excites th

Dispersion curve along a longitudinal slot in HFSS

Folks, I'm looking for a method to generate the dispersion relationship (i.e. beta vs frequency) along a longitudinal slot on a traveling wave antenna. I've played with the hfss fields calculator, but I've found it completely inexplicable. Does anyone have any experience in this area? Any ideas on how I'd go about doing this would be very welcom

How to draw vivaldi antenna curve in HFSS

hello, I have to draw a vivaldi curve. the equation is given as 0.125*exp(0.24*Lv). Lv varies from 0 to 18. could you please help me to draw it in hfss. Thank you

Exporting HFSS model to AutoCAD with high resolution

Hi, I have got some resonator drawn in hfss, and would like to export them to AutoCAD. I did it using the export, as dwg, and in AutoCAD I was able to import and everything seems to work, until I realized the curve I see in AutoCAD was very blocky, the bends were not smooth at all. Is there a way to export really smooth model? In (...)

How to plot gain vs frequency curve in HFSS

When i surfed in net i could get these information for plotting gain vs frequency curve but i could'nt get any plot when using this, 1. Right-click the Infinite Sphere icon in the project tree, and then click Compute Antenna Parameters on the shortcut menu. The Antenna Parameters dialog box appears. 2. Under the Solutions tab, select the s

Need a favor regarding how to plot gain vs frequency curve in HFSS

When i surfed in net i could get these information for plotting gain vs frequency curve but i could'nt get any plot when using this, 1. Right-click the Infinite Sphere icon in the project tree, and then click Compute Antenna Parameters on the shortcut menu. The Antenna Parameters dialog box appears. 2. Under the Solutions tab, select the

Rounding Corners in HFSS

Hello All, Can any one help me in rounding corners of solids in hfss? Thank you Kawther Hamad,

how to Create spiral antenna?

hello can u help me to design circular spiral in CST 2011 & hfss 11.11? i can not design in this kind of software... plz help me out...

HFSS - S11: Differences between simulation and measurements

Hi guys, I'm trying to compare a patch antenna S11 measurements with a simulation in hfss. Attached you'll find the .hfss and the results obtained during the measurement. S11 describe the same curve in both plots (measure and simulation) but, magnitudes vary dramatically. It seems to be an issue of meshing or waveport sizing. (...)

Horizontal ordinate is instable

hello, everyone! I want you help me with the problem which disturbs me for a long time. My hfss works well, however, when I copy the curve images, sometimes it appears the axis label sometimes it not. Is there something wrong with my software or operation?