q-factor
hi,i want to reformulate my previous post by simple question: how to find the q factor for a resonant antenna or a resonant transmission line using s parameters from ads or hfss simulation. i know that q is equal to fcenter/bandwith. how to calculate...
Electromagnetic Design and Simulation :: 08 May 2008 9:42 :: MrElec :: Replies: 0 :: Views: 240
ez-match replacement?
i really liked being able to play-around with matching networks in ez-match. i could create a network and then move around any of the points, allowing me to see the sensitivity of the matching network or under what load-impedances it would work.is th...
Software Requests :: 04 May 2008 15:37 :: gszczesz :: Replies: 2 :: Views: 99
please help me(microstrip antenna using hfss)
can somebody please upload for me a project report about microstrip antenna(any topic) using hfss with details.i have to do a project but i dont have enough time for it.please help me thanks in advance...
Electromagnetic Design and Simulation :: 02 May 2008 5:06 :: mvdeepaknair :: Replies: 5 :: Views: 852
calculation methods in simulation programs.
hi, can someone give me some examples of programs using fdtd method, fem method and mom method? i am a little bit confused, which from common used programs are using which method.greetings,redi....
Electromagnetic Design and Simulation :: 02 May 2008 5:00 :: mvdeepaknair :: Replies: 21 :: Views: 4149
microstrip filter design help
hi there,im meant to be designing a microstrip filter (bandpass type, center freq =2.205ghz) for my final year engineering project. im wondering if there is any software that will help me acheive this? i was looking at parfil as im on a very small bu...
RF, Microwave, Antennas and Optics :: 29 Apr 2008 8:35 :: byteptr :: Replies: 6 :: Views: 354
i m zero knowledge in electromagnetic
hi, im totally zero knowledge in electromagnetic. did anyone can give me some info where to get the best information for a beginner like me and it is easy to understand. my background is electronic engineering and i study a bit while in university. c...
Electromagnetic Design and Simulation :: 26 Apr 2008 16:30 :: eng_aq :: Replies: 31 :: Views: 3237
fdtd books (looking)
do you have fdtd book links or special resources if please could you help me....
Electromagnetic Design and Simulation :: 08 Apr 2008 12:50 :: ADS_RFMW :: Replies: 19 :: Views: 4494
electromagnetic mode matching simulation
hello everybodyi want to purchase a software that simulates combline and interdigital filters.the simulation is called electromagnetic mode matching:i know of 2 programs that do the electromagnetic mode matching simulation:1. wasp-net of mig2. mw wi...
Electromagnetic Design and Simulation :: 05 Apr 2008 4:27 :: xbnz6666 :: Replies: 3 :: Views: 450
best tool for em simulation
hiwhat is the best tool for electromagnetic simulation in particular for modeling defected ground structure (dgs)?...
Electromagnetic Design and Simulation :: 29 Mar 2008 5:41 :: mallelauma :: Replies: 4 :: Views: 330
please help me!i need this paper!
finite-difference time-domain (fdtd) simulations of electromagnetic wave propagation using a spreadsheetdavid w. ward *, keith a. nelsondepartment of chemistry, massachusetts institute of technology, cambridge ma 02139email: david w. ward (david@davi...
Electromagnetic Design and Simulation :: 25 Mar 2008 14:59 :: shameemkabir :: Replies: 1 :: Views: 162
maxwell student version 9
setupenyoy...
Software Links :: 28 Feb 2008 10:29 :: enogogo :: Replies: 2 :: Views: 1440
hfss stripline simulation: with a splitted ref plane
hi all,im a freshman in hfss and also in electromagnetic simulation concept. so, im not so sure about whether im correctly simulating or not. here is my problem:i have a stripline structure with a splitted upper reference plane. i want to simulate in...
Electromagnetic Design and Simulation :: 27 Feb 2008 10:20 :: tsubasa :: Replies: 0 :: Views: 132
software for magnetic field simulation
hiwhich software would you recommend to simulate the magnetic field of a solenoid?thanks,...
Electromagnetic Design and Simulation :: 20 Feb 2008 21:00 :: FvM :: Replies: 1 :: Views: 96
em simulation on x5482 or x5472 xeon processors
dear all,i was wondering if anyone has done any em simulation, particularly cst mws and hfss, on systems with high-end intel xeon processors, i.e. x5482 (3.2 ghz) or x5472 (3.16 ghz). they’re both of quad-core type with 1600 fsb. i would like to know...
Electromagnetic Design and Simulation :: 20 Feb 2008 3:12 :: wave-maniac :: Replies: 9 :: Views: 382
new career - emi/emc in the future
hi,i am from italy and i worked about 4 years as hardware designer engineer (pcb & rf microwave circuits) for a great corporate. at the moment i work as pcb designer for appliances market, in a young electronics company. time to project/market are so...
General :: 16 Feb 2008 14:22 :: neutrino :: Replies: 0 :: Views: 388
defected ground structure modeling
hican anybody explain me how to model dgs in microwave office? what simulator i have to use? electromagnetic simulation?i try to use this simulator. what i have to do? i have dielectric layer. on the top of the dielectric i need to put a microstrip l...
RF, Microwave, Antennas and Optics :: 15 Feb 2008 18:02 :: kannadassan :: Replies: 2 :: Views: 177
please suggest some em lecture note
1.may some one suggest a electromagnetic courses presentation,in ppt or pdf formate,and upload. the best is from ee course.i will use as a teaching and studying reference.2.question: how to learn and teach the electromagnetic course in the new centu...
Electromagnetic Design and Simulation :: 12 Feb 2008 0:58 :: peleda :: Replies: 22 :: Views: 2348
microstrip filter
hello all. i design the microstrip coupled line filter with help microwave engineering pozar. parameters of the filter was calculated for 0.8ghz passband with central frequency 14.4 ghz. after i modeled it in the schematic and layout (its shown on th...
Electromagnetic Design and Simulation :: 11 Feb 2008 7:59 :: amdc :: Replies: 2 :: Views: 205
simulation of optical filters on hfss
hello all,is it possible to simulate optical filters on hfss. i could not get any reference or examples showing how to do this. could anyone please help.also is it possible to simulate optical systems like an edfa?thanks...
Electromagnetic Design and Simulation :: 09 Feb 2008 6:01 :: priyankguddu :: Replies: 6 :: Views: 289
discussion: can em simulator be used for helical antenna ?
hi all, someone has told me that it is impossible to place the helical antenna for em simulation because it is hard to model the helical structure. is the statement true or not ?best rgs...
Electromagnetic Design and Simulation :: 05 Feb 2008 18:13 :: mpero :: Replies: 37 :: Views: 8517
hfss ephysics application
hello,i am planning build a large signal model for power transistor including thermal effect. the website of ansoft shows that ephysics can coupled thermal analysis for electromagnetic application. i have not use hfss before and it seems to me that h...
Software Problems, Hints and Reviews :: 29 Jan 2008 22:56 :: berser.k :: Replies: 1 :: Views: 375
surface acoustic wave resonator design using ansoft hfss
hi, i am a new member in edaboard. do anyone know the design of saw resonator with ansoft hfss? do anyone has the hfss tutorial or guideline of using hfss. thank you......
RF, Microwave, Antennas and Optics :: 15 Jan 2008 7:10 :: Azulykit :: Replies: 2 :: Views: 268
antenna design and electromagnetic simulation in hfss
hi everyone,i need to have one good reference to design an antenna. i found some tutorials to simulate antenna designs in hfss from internet (like horn, dipole, microstrip antenna, leaky wave antenna). but those are readymade designs. i want to de...
Electromagnetic Design and Simulation :: 14 Jan 2008 23:00 :: Buenrostro :: Replies: 6 :: Views: 438
source field in comsol
hi all,i am using the te inplane waves electromagnetic module in comsol and i need to specify the amplitude of the incident electric field e0z. when i put 1 in the corresponding matched boundary condition field, the results of my simulation suggest t...
Electromagnetic Design and Simulation :: 07 Jan 2008 10:58 :: iaia :: Replies: 0 :: Views: 243
modelling transmission lines as capacitors
hi there!i am using some pretty fat transmission lines as capacitors for an input matching network. i have previously used ceramic caps, which are accurate, but are extremely sensitive to temperature, and have no room for tuning.in a crude manner, w...
RF, Microwave, Antennas and Optics :: 02 Jan 2008 15:32 :: madengr :: Replies: 8 :: Views: 721
finite element method in electric field
i would like to use finite element method to solve electric field problem.anyone can tell me the book or resource about this topic?thank you ! :)...
Mathematics & Physics :: 27 Dec 2007 13:41 :: danidani :: Replies: 23 :: Views: 2698
software 4m vectorfields for antenna and rf
concerto is a 3d software for antenna and rf from vector fields.mom,fdtd and fem methods can be selected depending upon your application.did any one know about this software concerto.........need some suggestion whether this software features are goo...
Electromagnetic Design and Simulation :: 05 Dec 2007 8:04 :: Kanjeero :: Replies: 1 :: Views: 171
automatic meshing versus manual meshing
hii am using cst mws to do electromagnetic anaysis and design of antenna.i have found that the mesh used to discretize has a profound affect on the final results.so i am wondering whether to do manual meshing or to prefer automatic meshing with adap...
Electromagnetic Design and Simulation :: 29 Nov 2007 17:50 :: shahid78 :: Replies: 0 :: Views: 180
communcation system with matlab
http://img32.picoodle.com/img/img32/5/11/26/f_untitledm_aa6bf15.jpgcan you help me about design of this figure the reuaired cases are in the attached file.[/code]...
Electromagnetic Design and Simulation :: 26 Nov 2007 23:51 :: NiGo_bmstu :: Replies: 1 :: Views: 126
what is the advanced development of the fdtd?
hi,all i am amazed about the fdtd method.i have read many papers about teh fdtd method. now i want to apply it to the vehicle-level emc modeling. but how can i resolve the electrical large objects in the fdtd?by the way, is the fdtd suited for the ...
Electromagnetic Design and Simulation :: 23 Nov 2007 3:01 :: MusicMan :: Replies: 7 :: Views: 1134
mom
electromagnetic simulation using the mom method...
Electromagnetic Design and Simulation :: 21 Nov 2007 13:12 :: haythem :: Replies: 2 :: Views: 192
ansoft designer vs ansoft hfss
hi! im a user of hfss. can anyone explain me the differences between hfss and designer? what are the suitable applications of each one? thank you!...
Electromagnetic Design and Simulation :: 16 Nov 2007 16:17 :: pabloec :: Replies: 8 :: Views: 1071
request of 3d cpml fdtd source code
hello,everyone .i am doing a research about electromagnetic simulation .i am not clear to cpml .i need some papers and useful information about this absorbing boundary condition.and if anyone who have the 3d fdtd with cpml c++ souce code ,please...
Electromagnetic Design and Simulation :: 30 Oct 2007 9:41 :: jithesh :: Replies: 4 :: Views: 1098
dsp selection
dear all i tried these days to select a dsp evm for may master degree. i need to have one board with ethernet interface plus a/d module.i searched a lot in ti, freescale, & dspic and i coudnt found something can provide the ethernet connection plus ...
Digital Signal Processing :: 26 Oct 2007 2:32 :: rkarthik1 :: Replies: 18 :: Views: 978
antenna design tool
i need antenna design tool with accurate simulation results...
RF, Microwave, Antennas and Optics :: 08 Oct 2007 3:00 :: perfectanu :: Replies: 4 :: Views: 413
buying em software
i know that this topic has been beaten to death, but i would like to know what is the best em software. since this is very specific to the application, desired accuracy, cost, etc ... let me explain my situation. my company has two needs which, as ...
Electromagnetic Design and Simulation :: 14 Sep 2007 22:15 :: madengr :: Replies: 6 :: Views: 1113
help needed in getting master thesis
ching for a master thesis topic in antenna engineering.i have experience in designing microstrip antennas, microstrip circuits and travelling wave tube.i also have hands on experience in working with electromagnetic simulati......
RF, Microwave, Antennas and Optics :: 08 Aug 2007 9:47 :: Abhishekabs :: Replies: 5 :: Views: 513
for 3d fdtd with 3d pml
hello,everyone .i am doing a research about electromagnetic simulation .i am not clear to 3d pml .i need some papers and useful information about 3d pml formula .and if anyone who have the 3d fdtd with pml souce code ,i know there are already some r...
Electromagnetic Design and Simulation :: 30 Jul 2007 14:31 :: grendhell :: Replies: 2 :: Views: 369
benefits of using boundary conditions
i am just wondering whats the use and benefit of applying boundary conditions when we solve any problem using full wave electromagnetic simulation software like cst or hfss?i am just thinking what will happen if i dont apply these boundary conditions...
Electromagnetic Design and Simulation :: 30 Jul 2007 10:00 :: cd79 :: Replies: 4 :: Views: 378
help...comparison of cfdtd, adi-fdtd or any other fdtd
i want to choose a general-purpose fdtd method, which is fast, accurate and easy for implementation. i read some documents about normal fdtd, cfdtd and adi-fdtd, but still cannot tell which one is better, somebody say cfdtd is not easy in meshing, ot...
Electromagnetic Design and Simulation :: 16 Jul 2007 4:44 :: tenderne :: Replies: 3 :: Views: 348
a question about sullivan's book for 2d pml
i am learning fdtd through sullivans book---electromagnetic simulation using the fdtd method, and i can not get the right result from the code listed in the book for fd2d_3.2.c. also i downloaded this code from his website, it doesnt work too. can an...
Electromagnetic Design and Simulation :: 03 Jul 2007 9:17 :: pippopamp :: Replies: 4 :: Views: 609
radial stub
i need some basic papers or some good material on how to design radial series stubcan anybody help me...
RF, Microwave, Antennas and Optics :: 23 Jun 2007 0:21 :: Azulykit :: Replies: 3 :: Views: 252
non-converged solutions and poor meshing in hfss
anyone knows the term of non-converged solutions and meshing in hfss? what does it mean by poor meshing? how to measure how poor it is and then how to improve it?thanks so muchzahril...
Electromagnetic Design and Simulation :: 15 Jun 2007 23:33 :: zahriladha :: Replies: 3 :: Views: 270
which unit:omni uwb antenna-high d in elevation plane
hello everyone,previously i have posted the similar topic on electromagnetic design and simulation board.my desire is an omni directional uwb antenna element, with a constant dipole-type pattern on the elevation plane, the hpbw of which is 30 degree....
RF, Microwave, Antennas and Optics :: 12 Jun 2007 9:44 :: DrunkBear :: Replies: 1 :: Views: 108
ADS
:: :: :: Replies: :: Views:
radiation
hello guys;i have to realize a microstrip to measure his radiation, and i want to load one of its port with an impedance of 50Ω?what can i do this in practice and within ads momentum?thanks....
RF, Microwave, Antennas and Optics :: 08 Jun 2007 11:50 :: MrElec :: Replies: 4 :: Views: 405
mimo sysytems
exact capacity distributions for mimo systemswith small numbers of antennas...
Digital communication :: 15 May 2007 3:14 :: mar-cas1 :: Replies: 33 :: Views: 1896
rf / microwave design engineer: freescale semiconductor
i have immediate openings for rf / microwave design engineers, please contact me directly if you have any interest.regards,peter aaen----- requisition title: rf/microwave design engineer ----department description: the rf division (rfd) is the global...
EDA Jobs, Promotions, Advertising :: 17 Apr 2007 17:42 :: paaen :: Replies: 0 :: Views: 381
emc problem
hithe system isreceiver (~1 mhz)-cable-spectrum analyzerwhen cable ground is connected to the receiver ground i have great received noisewhen transformer was used between cable and receiver the noise was less but waswhat is the common practice in suc...
RF, Microwave, Antennas and Optics :: 09 Apr 2007 18:50 :: dfullmer :: Replies: 9 :: Views: 363
fdtd c source code from the book
1d fdtd2d tdtd3d fdtd...
Electromagnetic Design and Simulation :: 30 Mar 2007 12:02 :: nazanin :: Replies: 1 :: Views: 1563
new electromagnetic modelling tool vf concerto v6
new electromagnetic modelling tool delivers rapid solutions to escalating radio and microwave design oxford uk and aurora il, december 5, 2006 --- today, vector fields launches a major evolution of its high-frequency electromagnetic package, con...
Electromagnetic Design and Simulation :: 26 Mar 2007 10:59 :: aw :: Replies: 1 :: Views: 423
optimizing 3d structures in ie3d
i am currently working on simulating a so-called espar antenna in ie3d. the antenna consists of one active element (monopoloe) in the centre of a limited groundplane and 6 parasitic elements (also monopoles) placed in a circle around the active eleme...
Electromagnetic Design and Simulation :: 10 Mar 2007 20:36 :: nazanin :: Replies: 2 :: Views: 453
zeland ie3d, ansoft hfss and cst comparison
i use three kinds of em software to simulate pifa, and i compare with the em softwares.1. ie3d, moment of method (mom), suitable for 2-d planar antenna simulation. resource support: low2. cst, perfet boundary approximation (pba), suitabl...
RF, Microwave, Antennas and Optics :: 13 Feb 2007 5:10 :: Waltz_Fan :: Replies: 19 :: Views: 2295
troubles with the hfss 10 again !!
dear all,i really cant find the suitable words to thank you about your continuous support , that was is really very kind of you. i found some confusing check boxes in the solution setup (under the eigenmode solution type) that i dont know if i shoul...
Electromagnetic Design and Simulation :: 27 Jan 2007 20:03 :: amirealipour :: Replies: 1 :: Views: 246
large structures in hfss
hello, i´m trying to simulate an simplified body car iluminated by an plane wave. the range of frequency is 200mhz to 1ghz. i can´t get good results for frequency above 500mhz. in some case the hfss interrupts de simulation. had someone an experience...
Electromagnetic Design and Simulation :: 23 Jan 2007 8:15 :: purushottam :: Replies: 11 :: Views: 1272
band gap source in hfss
tuned active-integrated antennausing slot antenna dong-hyuk choi and seong-ook park, member, ieeethe simulated radiation patterns were calculated by using the gap source technique, in the commercial electromagnetic high-frequency structure simulator...
Electromagnetic Design and Simulation :: 22 Jan 2007 3:19 :: bkd :: Replies: 0 :: Views: 165
which tool are the best in electromagnetic simulation!!
im beginner in electromagnetic simulation. i read artcles below. many software are mentioned..ansoft hfss, agilent ads, cst .... etc..i dont know,...which tool is suitable for beginneer.. and has best performance..anyone inform me about this..regard...
Electromagnetic Design and Simulation :: 19 Jan 2007 10:08 :: 3dandyw :: Replies: 5 :: Views: 420
centre-tapped inductor in ie3d
hi,im designing a 1nh cti (centre-tapped inductor) with high quality factor. first, i create a square symmetrical cti using aisitc and obtain a 1nh inductor with quality factor 7, then i export it into cif file so that it can be imported into cadence...
Electromagnetic Design and Simulation :: 17 Jan 2007 17:01 :: jian :: Replies: 5 :: Views: 282
simulation tools selection recommendations
i am newcomer in the electromagnetic systems simulation, so need some help with tools selection.i want simulate 2d electrostatic electric field in the resistive medium for given electrodes set. some electrodes are connected to voltage sources, some a...
Electromagnetic Design and Simulation :: 06 Jan 2007 13:51 :: kyawsoelwin :: Replies: 5 :: Views: 282
what is ftdt? help
hi,what is ftdt? can you give some book talking about it.thanx...
Electromagnetic Design and Simulation :: 01 Jan 2007 2:44 :: qisqiname :: Replies: 8 :: Views: 1398
cst - combline filter
hello everyone, this is my first post here i have recently started to work with cst and designed few 3db couplers, fm band. there my experiences were good for results were in accordance with measurements. but i have hard time trying to simulate combl...
Electromagnetic Design and Simulation :: 24 Dec 2006 18:53 :: huvarda :: Replies: 15 :: Views: 2217
asking for 3-d fdtd
hi there. i am desperately looking for some codes in c or matlab of an fdtd application , preferably in 3d , regarding boundary conditions ( mur abc ). if anybody has anything similar or does know where i can find it please reply. thanx! :d...
RF, Microwave, Antennas and Optics :: 18 Dec 2006 4:30 :: ztt53 :: Replies: 2 :: Views: 357
how to simulate a microstrip gap with such a reference plane
the figure shows a layout of a microstrip gap for em simulation, where arrows indicate the reference planes for de-embedding to obtain the two-port y parameters of the microstrip gap.what i want to konw is that which em simulation tool can do this wo...
RF, Microwave, Antennas and Optics :: 12 Nov 2006 7:30 :: akedar :: Replies: 6 :: Views: 276
spiral inductor simulation software
what is the best spiral inductor simulation software? (compare from price,accuracy,simulation time and etc.)is it hfss, cst, maxwell 2d and 3d, momentum, oea and others?thanks,chun lee...
RF, Microwave, Antennas and Optics :: 27 Oct 2006 4:11 :: flywke :: Replies: 11 :: Views: 1266
ansoft designer~=hfss?
1) im downloaded ansoft designer sv 11.5 version from www.ansoft.com recently. is it another name for hfss? 2) and im newbie with the above simulator, anyone have these tutorial? because now im doing microstrip antenna in design. thanks in a...
RF, Microwave, Antennas and Optics :: 20 Oct 2006 13:16 :: faghani :: Replies: 5 :: Views: 1212
help me with fdtd near to fare field transformation
hi everybody,i have written an fdtd code and have gotten result that i need, but i have a problems with understanding the near to far field transformation implementation in fdtd.i have read taflove book: computational electrodynamics, the finite diff...
Electromagnetic Design and Simulation :: 09 Oct 2006 2:09 :: turbo_boy :: Replies: 5 :: Views: 555
transformer and inductor design
i just graduated as electrical eng and was hired by a transforformer company and said to look for ways to understand and design new transformers but cant seem to find help from profesors and i dont know anybody in the industry that could give more hi...
Other Design :: 27 Sep 2006 22:29 :: michael_bebars :: Replies: 3 :: Views: 510
accelarator boards for em simulation tools
i know that semcad provides a hardware accelarator board for its simulation software. does anyone know similar boards for instance for cst? i have heard that a company just released such a board with ibm cell processor for scientific and such calcula...
Electromagnetic Design and Simulation :: 14 Sep 2006 16:46 :: wave-maniac :: Replies: 10 :: Views: 813
physical synthesis flow
i am just beginning physical synthesis with synopsys tools, and now i have some problem with the design flow.someone told me that the physical compiler can synthesize the rtl code to netlist, but i only know the flow should be logical synthesis -> fl...
ASIC Design Methodologies & Tools (Digital) :: 08 Sep 2006 4:41 :: rajesh9999 :: Replies: 10 :: Views: 1032
electromagnetic modes
can somebody tell some visal resource (simulation, applet, gif) about te, tm and tem modes as it provides better understading.regards...
RF, Microwave, Antennas and Optics :: 06 Sep 2006 2:45 :: gw_uestc :: Replies: 1 :: Views: 120
thermal analysis software
can somebody recommend a thermal analysis software. 8o...
PCB Routing & Schematic Layout software & Simulation :: 31 Aug 2006 22:59 :: drabos :: Replies: 24 :: Views: 4020
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