26 Threads found on edaboard.com: Optimization ie3d
Hi..i m working on a pentagon shaped patch antenna for 4-12 GHz frequency range with a design frequency of 7.5 GHz. I m trying to use coaxial probe feed. I found good results at one location on patch but the patch is not resonating at designed frequency. How do i optimize the probe feed to obtain resonance at designed frequency?
Electromagnetic Design and Simulation :: 02-16-2017 15:45 :: Zepol :: Replies: 0 :: Views: 422
how do i optimize the axial ratio of a coaxial fed patch, i cut two notches on the patch and now i want to optimize the dimensions of notch to get axial ratio below 3dB using the optimization function in ie3d zeland. please advise me on how to use the optimization function in zeland
Electromagnetic Design and Simulation :: 09-17-2014 03:35 :: sourav224 :: Replies: 0 :: Views: 482
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
RF, Microwave, Antennas and Optics :: 08-04-2012 18:01 :: ashish.mw :: Replies: 1 :: Views: 623
dear all
i m facing some problem in optimizing the resonant frequency of a coaxially feeded microstrip antenna using Powel Optimizer in ie3d simulator. anybody can tell me........................
i hv already varified the optimization of the resonant frequency of a microstrip line feeded microstrip antenna using Powel Optimizer in ie3d
Electromagnetic Design and Simulation :: 06-22-2011 06:58 :: ktaimoor :: Replies: 0 :: Views: 927
i want to know what is Powel optimizer and E.M.optimization In ie3d.and how can i use it.
i have design a sqaure patch which has two slots. i m getting two frequencies 1st is 2.4298,return loss(-13.86) and 2nd is 3.2 return loss(-8.84).i want to use powel optimizer and E.M. optimizer on how can i use it plz guide me
RF, Microwave, Antennas and Optics :: 11-14-2010 13:19 :: sachin_ccs11 :: Replies: 0 :: Views: 665
Hi all,
I m using ie3d to optimize chamfer bends at a particular frequency. In KC gupta's book on microstrips some relations have been given for optimum chamfering of microstrip bends. These relations are dependant only on width and height, but not on length of arms. But i noticed that by changing the length in ie3d, the graph of s11 vs frequency
RF, Microwave, Antennas and Optics :: 06-04-2010 20:06 :: Nischey :: Replies: 8 :: Views: 2490
Hey friends
I am working on the optimization algorithms , and I try to use the ie3d to optimize antennas, How I can read and write the sim and geo files of ie3d by matlab?
Thanx in advance
Regards
Electromagnetic Design and Simulation :: 04-19-2009 21:27 :: Gubran2006 :: Replies: 0 :: Views: 1500
Parallel Processing of Powell?s optimization
Algorithm and its Application to Design of Multi-
Way Power Dividers
Mitsuyoshi KISHIHARA*, Kuniyoshi YAMANE*, and Isao OHTA**
See this IEEE paper.
They have shown how to make it
RF, Microwave, Antennas and Optics :: 11-10-2008 05:13 :: Abhishekabs :: Replies: 5 :: Views: 2008
PSO is some kind of global optimization scheme. It should be quite good for some sophisticated optimization. Like Gentic optimizer, it does require large number of iterations. It will need to do many sampling. It is good to use ie3d to drive it because of the efficiency and accuracy. It is documented on the Appendix of the user's manual on (...)
Electromagnetic Design and Simulation :: 09-22-2008 14:36 :: jian :: Replies: 5 :: Views: 1936
Good Day everyone, I'm from Malaysia and currently doing a project on:
"optimization of Microstrip Patch Antenna Using Particle Swarm optimization"
i have done the literature review on PSO and pratical training, doing exercise on antenna design using ie3d.for ie3d antenna design software i still can handle it, but for (...)
RF, Microwave, Antennas and Optics :: 09-15-2008 16:52 :: technetium :: Replies: 1 :: Views: 1022
Hi, rf-en:
You may not be able to optimize the height on the polygon based editor MGRID. However, you can do it on ie3dLIBRARY. You can do sophistiicated parameterization and optimization on ie3dLIBRARY. By the way, you should upgrade to ie3d 14. The ie3d 14 has integrated layout editor, visualization and (...)
RF, Microwave, Antennas and Optics :: 03-25-2008 01:38 :: jian :: Replies: 1 :: Views: 929
Does any people have made a matlab problem which can do optimization and call ie3d to do stimulation??I have great difficulty to do this.Please help!!!It is very important to me.
Electromagnetic Design and Simulation :: 02-28-2008 19:38 :: alireza76 :: Replies: 0 :: Views: 1085
hi,
i downloaded ie3d evaluation copy frm and tried to simulate a stacked patch antenna. i can run simulation.but when i define some variable for optimization(say patch length) and give for optimization shows some error..saying...this process type is not optimization.
kindly help me sort out this prob.
with regards
abhi
Electromagnetic Design and Simulation :: 12-13-2007 11:07 :: abhi_kolkata :: Replies: 2 :: Views: 1141
Hi,
Can anyone give me a hint for this matters...
currently, I'm designing a multi-frequency patch antenna using ie3d...
I've already got the frequencies, but not good enough...
so I want to improve it using the "optimizations" tools in the ie3d...
what parameters I should set for this purpose?
Thank you in advance,
Electromagnetic Design and Simulation :: 09-03-2007 01:57 :: micro_tech :: Replies: 5 :: Views: 1646
Yes. FastEM tuning and optimization are discussed in the ie3d's user's manual. It is mainly on the polygon editor or MGRID. In fact, it can be done even easier on ie3dLIBRARY.
FastEM involves 3 procedures:
1. Parameterization (different on MGRID and ie3dLIBRARY).
2. FastEM Preparation (same on MGRID and (...)
Electromagnetic Design and Simulation :: 07-27-2007 15:25 :: jian :: Replies: 2 :: Views: 1360
Hi, Kbmanick:
I think you need to design and optimize your feed network for it. You should try to use the SIMULATE AND FIND EXCITAITON feature of ie3d/MODUA. It allows you to find the output power at each port of your array. It should be useful for array's feed network and power distribution optimization.
Regards.
Electromagnetic Design and Simulation :: 02-07-2007 16:55 :: jian :: Replies: 3 :: Views: 1410
Hi, Mengjum:
On the polygon based layout editor MGRID, you can only define the xy coordinates of a group of vertices as one optimization variable. You can also assocate the xy coordinates of multiple group of vertices with one variable. However, you can define the z-coordinate as an optimization variable on MGRID. Once we were thinking about to
Electromagnetic Design and Simulation :: 01-29-2007 16:00 :: jian :: Replies: 2 :: Views: 1988
Hi
I am simulating a bandpass filter with ie3d9.0. During the optimization with the gap between the coupled resonator cells, ther are much difference between the trend and what I want with the curves of s21 and s11. Total three parameters need to be optimized, which are local parameters. But I wonder How to balance every local parameters in thi
Electromagnetic Design and Simulation :: 01-12-2007 02:32 :: flywke :: Replies: 0 :: Views: 1500
Does any people have made a matlab problem which can do optimization and call ie3d to do stimulation??I have great difficulty to do this.Please help!!!It is very important to me.:cry:
Electromagnetic Design and Simulation :: 01-04-2007 08:39 :: Dick_Lee :: Replies: 0 :: Views: 961
is there someone that can give me some help?
how to design variable and optimize it?
best regards!
RF, Microwave, Antennas and Optics :: 05-29-2006 11:42 :: gw_uestc :: Replies: 3 :: Views: 1228
Hi,
I beleive that ie3d is a good choice for printed antenna, for construction a printed antenna, after simulation and optimization, you must to export your antenna layout in dxf or dwg format then after any required modification in AutoCAD, you can send it for preparing photoplot and etching on PCB.
Regards
KMPA
Electromagnetic Design and Simulation :: 12-22-2005 13:16 :: KMPA :: Replies: 3 :: Views: 1186
HI, Winglj: (1) I seems to me your procedure is correct. You are supposed to be able to define a probe location as an optimization variable. Yes. You should select all vertices on all layers for it. This procedure is shown in the Zeland Virtual Training in . (2). Please define the Negative Level at the ground (z=0) and Positive leve
Electromagnetic Design and Simulation :: 12-04-2005 10:27 :: jian :: Replies: 1 :: Views: 2321
It seems to me that very few EM simulators can do optimization because EM simulation is already time-consuming. Fortunately, I compared several simulators and found ie3d could do that. I did succeed in optimizing a single variable among the length, width, notch depth of a microstrip antenna by defining one at a time. I am wondering if I can optimiz
Electromagnetic Design and Simulation :: 06-11-2005 01:03 :: mwagner :: Replies: 4 :: Views: 2125
The s-parameters are always normalized to 50-ohms in simulation because we want to make the s-parameter file to be compatible with Touchstone. However, you can re-normalize it to other ohms when you display teh s-parameters. When you do optimization, you can optimize s-parameters normalized to other ohms.
Electromagnetic Design and Simulation :: 04-08-2005 00:04 :: jian :: Replies: 3 :: Views: 1581
Hi, max!
Why you simply don't perform an optimization (for example in ie3d?)??
Your project has a low degree of freedom, you'll get answer quickly!!
Regards,
eirp
RF, Microwave, Antennas and Optics :: 04-02-2004 22:06 :: eirp :: Replies: 19 :: Views: 2683
Anyone has expeniences in using genetic to built or design antenna??
Is GA is useful??
Moreover anyone know how to do the optimization in ie3d??
I mean write your own GA program to call ie3d to do the optimization or draw random structure ??
RF, Microwave, Antennas and Optics :: 01-19-2003 05:54 :: ppAntenna :: Replies: 2 :: Views: 1440