1000 Threads found on edaboard.com: Optimization ie3d
It really depends upon what are your requirements.
1. You will need to define some dimensions of the structure as optimization variables. For example, for a simple patch, you define the size of the resonating edge as an optimization variable. You can define the feed location as another optimization variable. You have (...)
Electromagnetic Design and Simulation :: 09-03-2007 20:33 :: jian :: Replies: 5 :: Views: 1070
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.
Electromagnetic Design and Simulation :: 12-13-2007 06:07 :: abhi_kolkata :: Replies: 2 :: Views: 787
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 :: 03-24-2008 21:38 :: jian :: Replies: 1 :: Views: 663
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 14:01 :: ashish.mw :: Replies: 1 :: Views: 393
Do you have in the ie3d 11. the ability to parameterize the structure for
making fast changes? it also can help us in optimization. and parametric study
of the structure.
Thank you v.m.
Electromagnetic Design and Simulation :: 02-23-2005 18:06 :: plasma :: Replies: 12 :: Views: 1577
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 :: 04-07-2005 20:04 :: jian :: Replies: 3 :: Views: 1115
Hi, mwagner: There are multiple schemes in ie3d to do so. ie3d's default editor MGRID allowsyou to define the locations of some vertices as optimization variables. From the vertices, you can control the shape of your structure. However, MGRID does not allow you to specify the width and length or those high level geometry parameters because (...)
Electromagnetic Design and Simulation :: 06-11-2005 12:18 :: jian :: Replies: 4 :: Views: 1549
I tested the latest release of ie3d and tried to optimize a very simple structure with only one variable whose port is of "extension for wave" type. The aforementioned problem still resists. Here is the content of the log file:
optimization Geometry: *:\zel_test\wavep
Electromagnetic Design and Simulation :: 10-14-2005 13:05 :: wave-maniac :: Replies: 15 :: Views: 1606
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 05:27 :: jian :: Replies: 1 :: Views: 1775
is there someone that can give me some help?
how to design variable and optimize it?
RF, Microwave, Antennas and Optics :: 05-29-2006 07:42 :: gw_uestc :: Replies: 3 :: Views: 923
(1) ie3d FastEM Design Kit for real-time full-wave EM design:
ie3d FastEM Design Kit allows you to parameterize both planar and 3D structures, perform high accuracy and efficiency ie3d simulations on the structure, and extract the FastEM signature from the simulation results. The FastEM signature allows you to perform real-time EM (...)
Electromagnetic Design and Simulation :: 11-04-2006 18:38 :: plasma :: Replies: 0 :: Views: 753
Yes. ie3d/MGRID 12.01 has a crashing problem due to an optimization in the code. We turned off optimization for a section of code and it is released in 12.02.
Electromagnetic Design and Simulation :: 11-27-2006 17:03 :: jian :: Replies: 4 :: Views: 1544
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 03:39 :: Dick_Lee :: Replies: 0 :: Views: 700
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 :: 01-11-2007 21:32 :: flywke :: Replies: 0 :: Views: 1008
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 11:00 :: jian :: Replies: 2 :: Views: 1559
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.
Electromagnetic Design and Simulation :: 02-07-2007 11:55 :: jian :: Replies: 3 :: Views: 963
ie3d, ZDS and ZDM Version 12.1
zeland said We are pleased to announce the release of ie3d, Zeland Distributed
Server (ZDS) and Zeland Distributed Manager (ZDM) Version 12.1 for high
performance network distributed EM simulations and optimizations. ie3d,
ZDS and ZDM 12.1 feature:
(1) ie3d FastEM (...)
RF, Microwave, Antennas and Optics :: 03-02-2007 00:05 :: abdoeng :: Replies: 0 :: Views: 1180
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 11:25 :: jian :: Replies: 2 :: Views: 793
There are multiple ways to control the shape and location of structures in ie3d.
MGRID is polygon based editor. You can construct a structure as a set of polygons. You can select some vertices or some polygons and use the EDIT->MOVE command to move the objects or change the shapes.
You can also define the sele
Electromagnetic Design and Simulation :: 11-14-2007 11:02 :: jian :: Replies: 2 :: Views: 808
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 14:38 :: alireza76 :: Replies: 0 :: Views: 838
i am implementing a u-slot in my paper and after that a trough-slot shaped patch can any help hoe to do i ie3d
Also what optimization can be done
can u give me any u-slot ie3d files
RF, Microwave, Antennas and Optics :: 02-14-2009 11:21 :: Gautam Varma :: Replies: 10 :: Views: 1372
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
Electromagnetic Design and Simulation :: 04-19-2009 17:27 :: Gubran2006 :: Replies: 0 :: Views: 1218
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 08:19 :: sachin_ccs11 :: Replies: 0 :: Views: 405
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 02:58 :: ktaimoor :: Replies: 0 :: Views: 659
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 :: 09-16-2014 23:35 :: sourav224 :: Replies: 0 :: Views: 134
where can I get a copy of the genetic alg. that I can use for general purpose optimization?
Professional Hardware and Electronics Design :: 05-15-2002 12:45 :: ahgu :: Replies: 13 :: Views: 2825
Here is Zeland's ie3d Benchmark.
Compare results with your EM Simulator.
Electromagnetic Design and Simulation :: 01-08-2003 04:56 :: goxy :: Replies: 1 :: Views: 1264
Anybody using ADL schematic ?
I am just starting to use it and either I am doing something wrong or I interpret the results wrongly.
My variables are defined in 'mils', however the optimization seems to take it in meters (!). I correlated the numbers and they match.
Am I missing here somethig?
Electromagnetic Design and Simulation :: 01-16-2003 08:23 :: kato01 :: Replies: 6 :: Views: 1841
It seems to me that Sonnet and MWOffice give the same results when the circuit fits into a uniform rectangular grid. The main difference between these two is Sonnet provides a "diagonal fill" for irregular geometry, but this doesn't always improve the accuracy. Sonnet also offers some optimization features--sweeping some geometry parameters automat
Electromagnetic Design and Simulation :: 01-21-2003 23:17 :: loucy :: Replies: 42 :: Views: 9272
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 00:54 :: ppAntenna :: Replies: 2 :: Views: 1076
It has been released now :) :)
The major new features of the ie3d 10.0 are: Improved Green's
functions for higher efficiency and accuracy; Improved 3D Modeling
capability; Introduction of the Advanced Extension de-embedding
scheme with the highest flexiblity and ultra wide application
Electromagnetic Design and Simulation :: 06-05-2003 10:45 :: eirp :: Replies: 21 :: Views: 7816
Hitech PICC-18 v8.2PL4 generate a very large file if the option - Enable Assembler optimization is selected.
Does anyone have had this problem ?
How can this problem be solved ?
Thanks in advance for your advice.
PC Programming and Interfacing :: 03-06-2003 10:35 :: jimbies :: Replies: 0 :: Views: 1185
I would like to know if I can change the width of the series transmission lines in my matching networks when i optimize for better results. Can I change the width or it should stay related to 50 ohm?
Also when using balance stubs for the matching networks, should the length of the stubs be the same after optimization or I can change one or
RF, Microwave, Antennas and Optics :: 04-07-2003 21:52 :: ayhz2002 :: Replies: 3 :: Views: 1054
You should use a simulator with a optimization feature. Since the circuit is not very complicated , you can use ordinary RF simulator for that purpose such as Ansoft Serenade SV version ( it's free to download )
For features look at
I think that it will serve to your goal.
RF, Microwave, Antennas and Optics :: 06-05-2003 12:49 :: BigBoss :: Replies: 5 :: Views: 1292
Suppose the output frequency of an oscillator depends on a design parameter RX. I want to get a exact frequency ( say 100KHz ). How to write optimization statements if I use hspice for optimization? Output node is names as Y.
The major problem is how to measure the output frequency after transient analysis.
Hobby Circuits and Small Projects Problems :: 06-11-2003 01:03 :: Hughes :: Replies: 0 :: Views: 1317
i would like to model a helix in ie3d.
i am having a problem feeding the structure (or i believe i am)
helix diameter 1.5 inches
helix length 2.5 inches
segments per turn 12
number segments 24
start vertical length wire 150 mils
end vertical length wire 0
start angle 0
center x coordinate 0
center y coordinat
Electromagnetic Design and Simulation :: 07-10-2003 15:54 :: ghb :: Replies: 1 :: Views: 1426
hello everybody , i'm designing an array of 4 elements with coax feed and above them four elements that are not fed ,
how can i do it properly using ie3d?
i also have problems connecting to the evaluation software thruogh ADSL connection , does anyone know why?
RF, Microwave, Antennas and Optics :: 08-29-2003 08:33 :: pzizi :: Replies: 1 :: Views: 1102
I'm working over nonlinear parameter identification.
please recommend a software package for unconstrained global optimization ,large scale method
PC Programming and Interfacing :: 09-16-2003 20:51 :: nebisman :: Replies: 0 :: Views: 685
in using ie3d has anyone encountered problems with high q antennas?
for instance i've designed an annular antenna for gps app's say spaced 30 mils from ground plane and could not match ie3d results with actual measurements.
however if i redesign this antenna and space it say 100 mils the simulation results and actual measurements are quite cl
Electromagnetic Design and Simulation :: 09-23-2003 08:24 :: ghb :: Replies: 16 :: Views: 2554
I encountered a problem using zeland ie3d:
1. coplanar waveguide - ie3d need gnd when defining ports...
2. if i need to optimize strip width is there any chance to make optimalizatiom symmetrical so the gaps remain the same size?
Electromagnetic Design and Simulation :: 11-05-2003 10:00 :: sviodo :: Replies: 13 :: Views: 3301
I simulated antenna radiated pattern fot 2D polar pattern.
It draw three data E-total,phi=90(deg)
What does E-phi,phi=90(deg) mean ?
Is the +=?
Thanks in advance.
Electromagnetic Design and Simulation :: 11-17-2003 10:06 :: bmanson101 :: Replies: 11 :: Views: 2850
Now I am using ie3d for calculation of a microstrip antenna. The antenna is very simple, just consisting of infinite ground plane, substrate and rectangle radiator fed by coaxial!
What I need to deal with is to extract the values of current at a specified point on the radiator from the *.cur file in post-process of ie3d simu
Electromagnetic Design and Simulation :: 12-07-2003 09:42 :: :: Replies: 1 :: Views: 1057
Can ie3d do further optimization?Because the performance doesn't meet the requirement.
Of course, it can!!
What are exactly the requirements? Results above doesn't meet it?
Electromagnetic Design and Simulation :: 01-02-2004 11:31 :: eirp :: Replies: 15 :: Views: 1248
Does anybody know how to define finite substrate in ie3d 10.1 ?
Electromagnetic Design and Simulation :: 01-16-2004 01:26 :: whtu :: Replies: 1 :: Views: 1122
Hi all,I wonder if somebody would like to help me with an optimization
problem in Matematica.
I have the so called S-parameters (S11,S12,S21,S22) of a transistor circuit and are complex valued.
I want to maximize the trancducer powergain function
Constraints: R_in= S11
Mathematics and Physics :: 03-01-2004 16:52 :: StoppTidigare :: Replies: 0 :: Views: 1545
Can HFSS v9.1 do the sweep freq optimization?
as I know, HFSS can do fixed freq sweep variabe optimization, but I would like to sweep freq, could someone tell me how?
Thanks in advance.
Electromagnetic Design and Simulation :: 03-02-2004 16:27 :: randyding :: Replies: 1 :: Views: 1233
For my fir filter,I need a low taps fir for implementation.I had tried windows and remez method,but the taps is too high.
I heard that optimization fir filter design method is good,anyone can provide some program or papers about it to help finish the design.
Digital Signal Processing :: 03-22-2004 06:33 :: blueteeth :: Replies: 6 :: Views: 2194
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!!
RF, Microwave, Antennas and Optics :: 04-02-2004 17:06 :: eirp :: Replies: 19 :: Views: 1993
I have a project to realize with ansoft desing, is what you can assemble me an example for p@tch antenna , how to make an optimization, I do't have Doc.
Electromagnetic Design and Simulation :: 04-03-2004 17:12 :: max232 :: Replies: 0 :: Views: 669
Have any one used the graphical optimization method to optimize
cmos ic,can one have a talk about it?
Analog IC Design and Layout :: 04-12-2004 22:51 :: lxb97409 :: Replies: 0 :: Views: 1087