53 Threads found on edaboard.com: Hfss Floquet Port
Hi I am a new user of Ansys hfss. I am currently having some floquet port difficulties for my design. I have done the tutorial for floquet ports that is available in the learning guide. However, when I try to assign the floquet port at one of the faces this error message (...)
Electromagnetic Design and Simulation :: 14.07.2012 08:49 :: klusener :: Replies: 1 :: Views: 895
Do you have any tutorial or reference to learn defining floquet port in hfss v11?
Thank you very much.
Electromagnetic Design and Simulation :: 07.03.2008 05:32 :: si14 :: Replies: 0 :: Views: 1513
I am using hfss for UNIT-CELL simulation.
I want to know how to change the incident angle of plane wave in floquet port.
I will be great full to you if you suggest
In the floquet port wizard, check the "use scane angles to calculate ..." you can set incident angle, phi and theta, respect to the global
Electromagnetic Design and Simulation :: 15.05.2011 00:07 :: Feri4030 :: Replies: 5 :: Views: 3759
A guide to floquet port in hfss v11
Electromagnetic Design and Simulation :: 03.09.2009 12:20 :: Feri4030 :: Replies: 14 :: Views: 6731
I'm trying to simulate a hexagonal unite cell with floquet port in hfss
1. I used a lattice coordination system, as shown in the picture? Is that I reduced the hexagonal unit cell to the rhombic unit cell (that rhomb
Electromagnetic Design and Simulation :: 03.09.2009 12:54 :: Feri4030 :: Replies: 2 :: Views: 2644
simulating a FSS unit with floquet port,
when setting floquet port ,post processing, deembed distance
how can i set the value of deembed distance
need your help ,and thank you
Electromagnetic Design and Simulation :: 23.09.2009 10:44 :: xue_xd :: Replies: 2 :: Views: 2006
I am now using hfss version 12 to calculate S11 and S21 of a simple layer dielectric.
floquet ports and M/S B.C. are set up in the simulation.
For the floquet port, the plane wave incident angle is zero in default, but I want to use an oblique incidence(for example 10 deg). What should I do (...)
Electromagnetic Design and Simulation :: 09.03.2010 08:57 :: lennycao :: Replies: 4 :: Views: 2884
This was a real problem for my when I was working on my thesis, but finally I found the answer. How much distance for floquet port in hfss?
Well, the answer to this question is rather complicated. Yet the distance could be obtained easily for each structure, frequency, and incident angle.
As you know when a periodic surface is (...)
Electromagnetic Design and Simulation :: 31.10.2010 10:20 :: Feri4030 :: Replies: 10 :: Views: 3202
understanding the problem floquet port in hfss is not measured directly but can use the media parameter settings (s) see and check directly it will be directly
Software Problems, Hints and Reviews :: 06.03.2011 12:00 :: angel18 :: Replies: 7 :: Views: 4448
I am using hfss for the Unitcell,
I wants to find S21 as function of frequency for different incident angles in floquet port.
please anyone could suggest me how to change the incident angle of plane wave in floquet port.
RF, Microwave, Antennas and Optics :: 10.05.2011 11:16 :: mohanbabuiitm :: Replies: 0 :: Views: 786
i am working on a unit cell of a reflectarray patch antenna with slot coupled to a microstrip.
I tested the antenna with a micro strip excitation.
Now i need to test it by exciting the antenna using floquet port.
So i put master and slave conditions floquet port and then what ?
how to proceed after what are the (...)
Electromagnetic Design and Simulation :: 16.05.2012 12:24 :: raghghoud :: Replies: 0 :: Views: 609
As a disclaimer, I don't use floquet ports, but the setup looks correct to me as far as I know (hfss 13). For the master/slave boundaries, you probably just want to use the specified phase angle rather than theta/phi for square structures. To get the dispersion diagram, set the phase angle of Slave X to a variable AngleX and (...)
Electromagnetic Design and Simulation :: 29.04.2013 14:29 :: PlanarMetamaterials :: Replies: 2 :: Views: 919
I am a new user of hfss and also a newer of electromagnetic theory.
I want to simulate a periodic model using floquet port (with normal incidence). When I configured the excitation parameters of floquet port (in the Tab floquet port -> Modes Setup ), I found that (...)
Electromagnetic Design and Simulation :: 27.04.2013 18:13 :: william_l :: Replies: 2 :: Views: 568
pbg or ebg design with hfss
who can give me some example
RF, Microwave, Antennas and Optics :: 17.04.2006 03:58 :: huiliangxu :: Replies: 23 :: Views: 10333
who can tell me the difference between radiation boundary and PLMs in hfss?
Electromagnetic Design and Simulation :: 15.05.2006 12:55 :: snowboy :: Replies: 4 :: Views: 1322
I want to simulate the paper "Influence of hole size on the extraordinary transmission through subwavelength hole arrays", but there is always an error: port 'floquetport1': The exterior boundary of the faces for a floquet port must consist of pairs of parallel and equal length segments, displaced from each (...)
Electromagnetic Design and Simulation :: 19.06.2008 09:13 :: leiya :: Replies: 0 :: Views: 793
how can i model an infinite array antenna by using hfss?
could you send an example of this.
Electromagnetic Design and Simulation :: 24.09.2008 05:54 :: asondas :: Replies: 7 :: Views: 2451
I need to simulate the square unit cell of a cpw-fed slot antennas array with master/slave boundaries in hfss. The array lattice must be skewed of a distance d in order to suppress grating lobes due to the size (1.2λ) of the unit cell. This turns out to be a triangular lattice along the scan direction.
Electromagnetic Design and Simulation :: 12.01.2009 17:54 :: Ivan_ :: Replies: 14 :: Views: 5418
is any one knows how to simulate refelction phase of an EBG at grazing angle?
I simulate it with masteer/slave BC and floquet port (upon an example) but I don't know how to determine the incident angle?
In ansoft designer for grazing angle the result becomes some NAN values!
Electromagnetic Design and Simulation :: 25.08.2009 08:59 :: Feri4030 :: Replies: 0 :: Views: 1244
I want to assign a face in hfss with floquet port but i get an error that floquet ports may not touch an object whose material is lossy.
how do i assign my port with floquet?
I need the floquet port and i need to keep my lossy (...)
Electromagnetic Design and Simulation :: 12.11.2009 14:01 :: amyee :: Replies: 1 :: Views: 1062
i don't want use the Master-Slaver BC and floquet port to solve the problem, which recommended by hfss hand book.
i have draw a 8*8 (finite-unit) FSS in hfss 11, and just care about the 4*4 units in the central area. How should i set the boundary condition and Excitation?
RF, Microwave, Antennas and Optics :: 14.01.2010 01:34 :: Ponylee :: Replies: 0 :: Views: 530
I have a problem calculating the phase of the reflection coefficient for an AMC material. My structure is formed by a silicon substrate and 2 oxides on top of it.
The AMC properties are generated by a spiral strip of metal placed in the bottom oxide at the interface with the top oxide.
I use hfss v11 to simulate it.
Since the single spir
RF, Microwave, Antennas and Optics :: 04.03.2010 11:19 :: nico85 :: Replies: 0 :: Views: 807
plz, can any one help me to simulate Split Ring Resonator by using hfss.
I try to resimulate the design in the attached paper, and i use floquet port for excitation and Master/Slave boundary to repeat the structure, but the result wasn't matched that in the original paper.
i want to know
Electromagnetic Design and Simulation :: 09.12.2010 13:33 :: walaa3d :: Replies: 0 :: Views: 1125
Have you get your problem solved?
I have try floquet port and wave port. To plot the reflection phase in hfss, just go to "hfss" -> "Results" -> "Create Modal Solution Data Report" -> "Rectangular Plot" after click on "Rectangular Plot" a new trace window will appear here you can (...)
Electromagnetic Design and Simulation :: 01.01.2011 03:17 :: winsonwhy :: Replies: 9 :: Views: 3015
i'm trying simulate periodic structure in Collin's book " foundations for microwave engineering" chapter 8 page 552 ( capacitively loading of coaxial line),by hfss, I want define Master and Slave and floquet port, but i don't know how consider master and floquet?
i will be great full if any suggest.
Electromagnetic Design and Simulation :: 11.05.2011 01:26 :: zohre :: Replies: 0 :: Views: 810
I'm trying to excite a floquet port with a circular polarized wave, but I can't find the way.
What I'm doing instead is calculating the results by calculating the fields for the floquet modes 1 and 2 [S(floquet1:1,floquet1:1) and so on...
My goal is to mesure the axial ratio and the S parameters. (...)
Electromagnetic Design and Simulation :: 02.06.2011 16:30 :: israellopez :: Replies: 1 :: Views: 1144
I am trying to simulate one unit cell of the reflectarray element in hfss, to get the phase-size curve. My question is: when I put a waveguide port or floquet port above the patch, what kind of deemed distance should I use? Should be deemed at the patch surface or at the ground surface?
I think it should be (...)
Electromagnetic Design and Simulation :: 19.07.2011 18:42 :: panou :: Replies: 2 :: Views: 1229
i am doing my project in rcs reduction of frequency selctive surfaces..
i am using hfss 13 for simulation
i selected a unit cell and upo validating i gt an error as
port 'floquetport1': The exterior boundary of the faces for a floquet (...)
Electromagnetic Design and Simulation :: 08.08.2011 03:34 :: libiriyaz :: Replies: 0 :: Views: 723
I am now modelling a reflectarray cell element in hfss, but come across a problem when setting the floquet excitation. I have drawn an airbox, four sides of it are assigned with Master/Slave boundaries and the bottom side left with empty and align with the ground of the cell element. The top side is set as 60mm away from the upper rectan
Electromagnetic Design and Simulation :: 22.02.2012 04:39 :: gltlsg :: Replies: 4 :: Views: 1061
I am modeling a periodic structure with a floquet port in hfss. I have a tall rectangular box whose top face is a floquet port and bottom is PEC. a unit cell of teh peridodic structure is within the box. I have master and slave moundaries on the side walls.
I would like to simulate a scattered field (...)
Electromagnetic Design and Simulation :: 20.03.2012 20:52 :: hamtaro :: Replies: 0 :: Views: 774
i try to simulate reflectarray antenna element with t-shaped patch.i work with hfss and i use master and slave boubdary and floquet port for my periodic conditions.now how can i excite my patch in x or y direction with floquet port??? and how can i see co-polarization and cross polarization from (...)
Electromagnetic Design and Simulation :: 31.07.2012 10:52 :: afshinsos :: Replies: 0 :: Views: 300
I think this will help you
Electromagnetic Design and Simulation :: 04.12.2012 08:08 :: lionmking :: Replies: 9 :: Views: 931
are u getting errors or results are weird? if that is copper u will have currents flowing around the boundary...
The error is boundary overlapping error when performing validation check. Results are not weird for this case, as I am looking for S parameters only (reflection and transmission), but still a little diffe
Electromagnetic Design and Simulation :: 15.01.2013 23:39 :: violetcrow :: Replies: 7 :: Views: 732
Hi all...This is Yugandhar. I am working with hfss.I have 2 doubts. Can anyone guide me my multi layered problem analysis; hfss results and closed form solution results are matching only at a particular height. If I try to change the dimensions of my model, results are invalidated(hfss and closed form solutions are not matching for th
RF, Microwave, Antennas and Optics :: 29.01.2013 01:08 :: yugandhar.yadam :: Replies: 1 :: Views: 199
I really don't understand what you are saying. I am posting the image of the unit cell and the research paper I am implementing. As you go through the research paper, its fig.3. that I am talking about. Aren't there any settings in hfss that would simply require some changes.or you could further explain what you said about the sin and cosine.
Electromagnetic Design and Simulation :: 12.03.2013 06:06 :: Sabarashid :: Replies: 2 :: Views: 350
i took a look at the paper. they used PMM for different incident angles...
in hfss or any FEM solver, you are the only one responsible for the design! and believe me, it is simple. i try again:
0- i assume 2D, xy plane.
1- you have a freq range with their k values and teta
2- put in the source expression, the x component of your incidence kx=k*cos
RF, Microwave, Antennas and Optics :: 13.03.2013 01:38 :: simuboss :: Replies: 3 :: Views: 272
If your unit cell is either rectangular or square, then by solving for the first two modes (orthogonal polarizations), assuming you need no more than that, in the floquet port you know all you need to know about the polarization dependence of a structure at a given angle of incidence. If your structure symmetry is aligned with the modal excitation
RF, Microwave, Antennas and Optics :: 06.05.2013 09:59 :: tallface65 :: Replies: 3 :: Views: 491
In a infinite structure we know we can set BC as master & slave and floquet port to analysis, but when I want to analysis a 5*5 structure
How should I set the BC and what port can we use? Because I need to create a TEM wave, and when we use radiation BC and wave port can't create a TEM wave.
So hope someone can help with (...)
Electromagnetic Design and Simulation :: 06.06.2013 00:43 :: flyer327 :: Replies: 2 :: Views: 523
If your purpose is to show the fields in your structure,I know how it is done.
in my design, i used wave port,solution type:driven modal,i had a radiation boundary.
After selecting the desired part of design, you should this steps:
right click-plot fields-select E or H or...
and then hfss-fields-animate to see the wave motion.
I hope, hel
Electromagnetic Design and Simulation :: 15.06.2013 15:17 :: fereshteh :: Replies: 2 :: Views: 328
Hi, any guys can tell me what is advantages of hfss11 vs hfss10?
Electromagnetic Design and Simulation :: 05.10.2007 00:05 :: qqqooo :: Replies: 4 :: Views: 3128
I need help for setting floquet ports for the simulation of the unit cell of an infinite array in hfss.
The unit cell is made up of two orthogonal CPW fed folded slot antennas, each terminated with a lumped port with an opportunely chosen impedance. An opportunely polarised plane wave (...)
RF, Microwave, Antennas and Optics :: 19.01.2008 13:20 :: Ivan_ :: Replies: 1 :: Views: 2686
You can't. hfss does not give you this information nor allow you to specify what modes to be input to the port.
Electromagnetic Design and Simulation :: 17.09.2009 03:01 :: micky74 :: Replies: 5 :: Views: 2547
Set a periodic boundary condition (master/slave) so that the model is effectively infinite in one transverse direction. Then, choose an appropriate excitation.
Waveports are not appropriate because they force the fields to be zero at all their boundaries. (For microstrip/CPW this does not matter, as long as the waveport is big enough that fringi
Electromagnetic Design and Simulation :: 25.01.2010 09:22 :: shlomo22 :: Replies: 3 :: Views: 1484
You may want to be careful in your setup. TheArcane has a good point. Unless you defined the feed of the patch antenna with a 50 Ohm RLC boundary condition or a lumped port definition with a 50 Ohm reference, your antenna is not matched and is rather left OPEN!! This will of course lead to very strong reflections. As a solution, ensure your ant
Electromagnetic Design and Simulation :: 06.07.2010 18:43 :: tallface65 :: Replies: 10 :: Views: 2767
I want to simulate array using floquet port and master ,slave boundry with hfss v.12.I need circular polarization,and I do not know ,how must do it.can anybody help me???????????
thanks a lot
Electromagnetic Design and Simulation :: 10.05.2011 01:28 :: farzanehjun :: Replies: 3 :: Views: 1611
I'm trying to design a planar phased array antenna consisting of circular dielectric waveguide for 15.25GHz applications(lattice is skew).
i modeled hexagonal unit cell in hfss with master/slave boundary condition and PML.
and then i want to see my anten impedance matching in all scan angle is good or no!!
floquet port and PML toghether (...)
Electromagnetic Design and Simulation :: 02.12.2011 16:40 :: kingofsky :: Replies: 0 :: Views: 1080
I am trying to follow hfss tutorial on floquet port but i am getting following error messageFailed to solve the problem due to lack of precision. The likely cause is that the frequency is too low..I have attached the tutorial and hfss file both.Any help will be greatly valuable to solve this error.
Electromagnetic Design and Simulation :: 09.06.2012 15:17 :: abhisheksarkhel :: Replies: 0 :: Views: 565
hello, please explain about how to simulate this floquet modes in hfss with more details. for example how to define or specify angle of incident to any of element ?
Software Problems, Hints and Reviews :: 23.07.2012 08:09 :: aghamajid :: Replies: 1 :: Views: 568
This tutorials explains how to do that.
Electromagnetic Design and Simulation :: 24.06.2013 16:20 :: CG0210794 :: Replies: 1 :: Views: 304
I am planning to simulate, and in a single setup, an FSS-Antenna system. I need to study the effect of different field patterns of a source antenna on the performance of an FSS structure. The simulation scenario has the following givens:
1- An antenna, in both the radiative-near-field (Fresnel region) and far-field (Fraunhofer region),
RF, Microwave, Antennas and Optics :: 29.07.2013 05:56 :: eng.amq :: Replies: 0 :: Views: 200