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latest rf tutorial uploaded
hi all,its been a while but ive managed to upload another tutorial to www.rfic.co.ukthis one is satellite communications and is under the systems & devices section...differential lna almost finished - just need to add some equations for linearity.bye...
RF, Microwave, Antennas and Optics :: 19 Nov 2009 16:08 :: echostar :: Replies: 80 :: Views: 52324
hfss tutorial for transmission line vias
hi, i have been contacted by many people from edaboard forum about hfss tutorial. so, i have uploded a tutorial with its hfss projects.i hope this work will be helpfull....
Electromagnetic Design and Simulation :: 31 Oct 2009 9:25 :: breadpig :: Replies: 211 :: Views: 57457
hfss accuracy for spiral inductor design
hi guys,i want to know how accurate is hfss to help me guess the value and quality factor of a planar spiral inductor on silicon (integrated circuit).i want to know if, based on the layers description (insulators, metals and silicon) hfss is able to ...
RF, Microwave, Antennas and Optics :: 24 Oct 2009 14:36 :: AEK2005 :: Replies: 8 :: Views: 1311
which software is best for icp ion source design and sim?
i am trying to design an inductively coupled plasma ion source and do its 3d simulation. which software is the best for this perpose?cst, hfss , ... ?...
RF, Microwave, Antennas and Optics :: 20 Oct 2009 12:28 :: steve_rb :: Replies: 4 :: Views: 189
design of rf field in a microstrip line
hi, i am a student and new to this field. i want to calculate the rf field around the signal line in a microstrip. how should i do that using fortran. can hfss be used to find the rf field (i am new to hfss also). if so how?. any references and cod...
Electromagnetic Design and Simulation :: 14 Oct 2009 21:48 :: vkumar09 :: Replies: 0 :: Views: 93
help me: phd looking for a rf filter/diplexer design job
hi, dear all, i, phd in microwave 2005, am looking for a senior rf filter/diplexer design job. i can professionally use hfss, cst and matlab, and primarily use ads. i have over 10 years design experience in rf filter design, incl. coaxial, h...
EDA Jobs, Promotions, Advertising :: 14 Oct 2009 15:19 :: cwjcwjcwj :: Replies: 1 :: Views: 270
how to import antenna model from hfss to cadence?
ield of rf circuit design. now i want add a general standard antenna into my front-end of the receiver to see the match performance between antenna and lna. i have checked some references, it seems hfss cannot simulate the active circuits (am i rig...
RF, Microwave, Antennas and Optics :: 14 Oct 2009 9:59 :: 051021031 :: Replies: 0 :: Views: 141
generating dispersion diagram for ebg in cst mws
hello,i am trying to generating a dispersion diagram of a ebg for determining its band-gap on cst 2008(mws). i want to get a dispersion diagram as shown(fig. 10) in “high-impedance electromagnetic surfaces with a forbidden frequency band,” by d. siev...
Electromagnetic Design and Simulation :: 11 Oct 2009 20:48 :: lostinsocorro :: Replies: 29 :: Views: 2223
how to design a milli metre wave detector?
how to design a milli meter wave detector?means how to do simulation of a coplanar wave guide connected with microstripline having a schottky diode in it for detecting power in it, excited by the power source and will have to match impedance of copla...
RF, Microwave, Antennas and Optics :: 04 Oct 2009 16:57 :: haseb_09 :: Replies: 2 :: Views: 180
how to join the equation based curved in hfss v11
does anyone know?i want to draw some ellipse rf cavity from the sweep of only single line for the good meshing.i can create several eq curved and use unite to join them together, but i think its not the good way to make line contineus. this i want is...
Electromagnetic Design and Simulation :: 20 Sep 2009 16:47 :: credo :: Replies: 2 :: Views: 354
resonator filter mems structure - need s parameter
i am planning to simulate this rf mems structure like thishttp://images.elektroda.net/55_1251886291_thumb.jpg i need to find s parameter. which software i can use ie3d or ads or hfss. or ansys...
Electronic Elementary Questions :: 19 Sep 2009 7:27 :: sundarmeenakshi2000 :: Replies: 2 :: Views: 258
what is diff betwwen hfss and q3d extractor of anasoft?
what is diff betwwen hfss and q3d extractor of anasoft?...
Electromagnetic Design and Simulation :: 18 Sep 2009 2:21 :: asiaswallow :: Replies: 2 :: Views: 144
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what is best software to aid in antenna design?
hi all,may i know the pros and cons of the various commercial software for antenna design... example -->ansoft designer, microwave office etcthanksnewbie101...
RF, Microwave, Antennas and Optics :: 16 Sep 2009 15:49 :: 2009kucing :: Replies: 41 :: Views: 5010
s matrix in hfss microstrip simulation
hi everyone: i am working on a minor study of microstrip simulation in hfss. i created a model of a microstrip line and add 2 waveports as the excitations . in the results it shows the port z0=59ohm@40ghz. the length of the microstrip is set to 2...
Electromagnetic Design and Simulation :: 04 Sep 2009 7:04 :: micky74 :: Replies: 9 :: Views: 444
the method to create a laser port in hfss
hi i am a new user of hfss,what would be the method to create a laser port in hfss...
Electromagnetic Design and Simulation :: 03 Sep 2009 14:24 :: iyami :: Replies: 11 :: Views: 228
rf mems reasonator filter
hi i am palnning to simulate rf mems resonator filter like this i need s parameter.which software i can use to simulate this strcture. ads or hfss or ie3dhttp://images.elektroda.net/76_1251885708_thumb.jpg...
RF, Microwave, Antennas and Optics :: 02 Sep 2009 11:03 :: sundarmeenakshi :: Replies: 0 :: Views: 57
diode by hfss
i am trying to simulate a left_handed metamaterials with varactor diode by hfss,but i dont know how to build the model of diode in hfss?could anybody help me ,thank you very much....
Electromagnetic Design and Simulation :: 18 Aug 2009 0:34 :: Zottiri Kusuta :: Replies: 9 :: Views: 900
900 mhz microstrip patch antenna
hi there, currently i am working on a project which part of the modules needs me to design a 900mhz patch antenna. but i dont have telecommunication background so it seems hard to me.so may i know anyone has the exact pcb dimensions for a simple patc...
Electromagnetic Design and Simulation :: 29 Jul 2009 21:03 :: ahsaan :: Replies: 13 :: Views: 1383
can hfss be used to simulate the rf coil of nmr
recently, i am looking for a software which can calculate the rf coil of nmr. i used to calculate antenna by hfss, so i want to know is it appropriate to simulate the rf coil of nmr ?...
Electromagnetic Design and Simulation :: 13 Jul 2009 3:33 :: JayZhang84 :: Replies: 0 :: Views: 111
rf simulations of mems cantilever switch
ariation of rf parameters like insertion loss, isolation loss etc (wrt to frequency) by varying some of its parameters like length of actuation area, normal gap height. i want to simulate the same in hfss. the current of s/w in which i am working (hf...
Electromagnetic Design and Simulation :: 12 Jul 2009 15:39 :: medaziz :: Replies: 4 :: Views: 576
best 3d em simulator
what is the best 3d em simulator?regards...
Electromagnetic Design and Simulation :: 11 Jul 2009 22:24 :: emcguy :: Replies: 55 :: Views: 9466
h f s s vs c s t
does anyone can give a comment on this topic?which is one is better. ive experience in h f s s and found that it is pretty slow and memory hungury. for a circuit with two plannar inductors, it takes on more than 1gb memory. does cst offer anything be...
Electromagnetic Design and Simulation :: 05 Jul 2009 11:03 :: shazdek0ch0l0 :: Replies: 140 :: Views: 30871
coupled differential pairs without ground (coplanar strips)
hello rf- and mw- experts,i have so problems with ads 2006a / ansoft designer and i hope that you can help me. before i describe my problem, i want to say, that im still learning these softwares. my problem is that i want to design coupled differenti...
RF, Microwave, Antennas and Optics :: 30 Jun 2009 9:47 :: kspalla :: Replies: 1 :: Views: 208
rf simulations of mems cantilever switch
ariation of rf parameters like insertion loss, isolation loss etc (wrt to frequency) by varying some of its parameters like length of actuation area, normal gap height. i want to simulate the same in hfss. the current of s/w in which i am working (hf...
Other Design :: 14 Jun 2009 21:26 :: MEMS_rules :: Replies: 0 :: Views: 401
i want to model sma connector in hfss for patch driving
hi,i want to model sma connector in hfss for patch driving, can any one help me for this or any other suitable connector...
Electromagnetic Design and Simulation :: 10 Jun 2009 15:54 :: mtu :: Replies: 3 :: Views: 522
re: hfss surprising bad precision on capacitor modeling
i am using hfss to extract some portions of my vco tank.the model of inter-digited capacitor i got from hfss had a suspicious high value (190f and i was expecting 110f)so i build a very simple test case: 2 plates of 10um*10um separated by 1um of oxyd...
Electromagnetic Design and Simulation :: 07 Jun 2009 22:21 :: courcirc8 :: Replies: 8 :: Views: 690
what is em simulation? which software is more accurate?
hiwhat is em simulation? which software is more accurate for em simulation?...
RF, Microwave, Antennas and Optics :: 26 May 2009 14:11 :: brightblade :: Replies: 5 :: Views: 417
full chip em simulation using ansoft hfss
hi, i wanna make a full em simulation of a rf chip, made of tsmc 0.18um cmos technology. the discription of this chips structure is as follows. it contains many inductors and interconnects, which are surrounded by a metal ring. this metal ring will s...
Electromagnetic Design and Simulation :: 30 Apr 2009 3:32 :: jslee :: Replies: 0 :: Views: 147
career advice is required
istan.i have passion for wireless technologies and rfic etc but unfortunately there is no rf company in pakistan.i am trying to learn all basic and must software tools like ads,amds,microwave office ,hfss,xfdtd,system overview.i havnt got any one but...
EDA Jobs, Promotions, Advertising :: 25 Apr 2009 6:48 :: ppboyindream :: Replies: 4 :: Views: 663
noise analysis in cadence analog design environment
i want to do noise analysis of a circuit, how can i do it in cadence ade, references are appreciated ,help me. thanks in advance....
Analog Circuit Design :: 22 Apr 2009 12:02 :: arunkumar446 :: Replies: 4 :: Views: 960
help me: the presentation on low power rf transceiver!!
hello guys!!i will make a presentation on the low power rf tranceiver for a low power design course in two weeks. by now, i have read the rf macroelectronic written by razavi, and known the foundimental concept on the rf transceiver. how should i do...
RF, Microwave, Antennas and Optics :: 20 Apr 2009 20:02 :: sau_sol :: Replies: 3 :: Views: 321
how to simulate a rf circuit in hfss.
hello,i want to know how to simulate a rf circuit in hfss.i dont know how to deal with the active components(mosfet).if anyone know it or have some examples,please tell me. thank you very much!...
Electromagnetic Design and Simulation :: 14 Apr 2009 5:57 :: ksugahar :: Replies: 3 :: Views: 360
bowtie shape antenna - purpose of mesh plot in ansoft hfss?
i am currently designing a bowtie shape antenna...i wanna noe what is the purpose of the mesh plot in ansoft hfss...anyone pls help me...tanx a lot!!!...
RF, Microwave, Antennas and Optics :: 11 Apr 2009 3:03 :: sugart :: Replies: 5 :: Views: 537
freelance for ansoft designer
anyone interested in freelancing for ansoft designer? all you have to do is to simulate antenna and finish up a report....
EDA Jobs, Promotions, Advertising :: 10 Apr 2009 16:23 :: alexandr_babaskin :: Replies: 6 :: Views: 585
how i jumpstart my career in rfic
istan.i have passion for wireless technologies and rfic etc but unfortunately there is no rf company in pakistan.i am trying to learn all basic and must software tools like ads,amds,microwave office ,hfss,xfdtd,system overview.i havnt got any one but...
General :: 28 Mar 2009 20:37 :: asim569 :: Replies: 0 :: Views: 297
matching circuit help - results weren't as expected
hi all,i need to match 912mhz saw device to 50 ohms within its 10% fractional bandwidth, which has only 1 port. i have done the matching network design already. theoretically, it should work, as seen in attached pdf. then i optimized using ads layout...
RF, Microwave, Antennas and Optics :: 25 Mar 2009 18:38 :: kosolson2005 :: Replies: 7 :: Views: 699
need for rf designer at hyderabad location
agreetings from vroute consulting services!!we are currently recruiting for one of our vital it client power wave technologies-hyderabadjob title: rf design engineereducation requires a bachelor’s/masters degree in electronics & communications engine...
RF, Microwave, Antennas and Optics :: 23 Mar 2009 14:01 :: VRoute :: Replies: 0 :: Views: 339
pifa in hfss - how to feed the antenna in hfss?
i have a problem in designing pifa, i dont know how to feed the antenna in hfss.in ieee paper said a 50 ohmi coaxial line is used to feed the antenna.specifically,two folded feed lines are placed between the radiator patch and the feed point. i spe...
Electromagnetic Design and Simulation :: 17 Mar 2009 23:21 :: miki1234 :: Replies: 0 :: Views: 360
result mismatch - hfss & sonnet & momentum (spiral i
hi everyone! i am a newbie in both rf & hfss. therefore, before i start performing simulation for my new design using hfss, i tried to verify my setting (in hfss) by comparing the result obtained with those of sonnet and momentum (published in a jour...
Electromagnetic Design and Simulation :: 02 Mar 2009 9:30 :: flypeyton :: Replies: 11 :: Views: 1587
absorber material modeling in hfss
hi everybodyi am designing an antenna and i need to simulate the effect of an absorber material on top of my antenna....but i dont know how to model it.thanks...
Electromagnetic Design and Simulation :: 20 Feb 2009 20:28 :: prafuldeo :: Replies: 4 :: Views: 1125
antenna design tools
can anybody tell me if there are any antenna design tools availbale for pcb or simple antennas for 868 915 mhz bands. or does any body have a design for good omin directional antennas for these bandsthanks...
RF, Microwave, Antennas and Optics :: 13 Feb 2009 13:43 :: sreevyas :: Replies: 133 :: Views: 28568
zigbee antenna for mrf24j40
hello everybody,im a newbie in rf design and i want to simulate the zigbee antenne from the microchip mrf24j40 zigbee module in hfss. here is the link to the datasheet.hxxp://www.microchip.com/wwwproducts/devices.aspx?ddocname=en535967now i have a pr...
RF, Microwave, Antennas and Optics :: 14 Dec 2008 22:55 :: StephanH :: Replies: 1 :: Views: 678
sma input port for cpw monopole antenna in hfss
i am simulating a wimax antenn in cpw monopole style for fyp.unfortunately, when i set the input port for sma connector, there are some problems ......1. should i draw a sma connector in the simulation ? if yes, hoassig the material and connection pr...
Electromagnetic Design and Simulation :: 02 Dec 2008 14:10 :: gaston.ep :: Replies: 15 :: Views: 1539
what is the best 3d field solver tools
dear friendwhat is the best 3d field solver tools ?could you give me any comment ?...
Electromagnetic Design and Simulation :: 26 Nov 2008 22:12 :: walaa3d :: Replies: 40 :: Views: 10288
best software to use?
what is the best software to use to analyze active and passive circuits.for passive circuits i currently use ansoft hfss and designer, and ems fekoi would like to be able to analyze active and passive circuits at once, are there any packages out ther...
Analog IC Design & Layout :: 12 Nov 2008 5:06 :: b4bb4ge :: Replies: 2 :: Views: 186
emc and rf leakage simulations
hello all!i am seeking for emc and rf leakage simulations as real world examples.(it could be in cst, hfss or other em softwares).thanks,ih[/b]...
Electromagnetic Design and Simulation :: 29 Oct 2008 6:55 :: yogeshwarr :: Replies: 2 :: Views: 306
head model
hello to everyone.is there any chance to find a head model/phantom in hfss code?i need a head model that simulates the skin,bone,tissues etc of the head so as to put it in the hfss and rf-simulate it.p.s.: if not, i have already found a model in cst ...
Electromagnetic Design and Simulation :: 18 Oct 2008 5:55 :: SAJ25 :: Replies: 14 :: Views: 1554
to buy: rf and antenna sim tools
hi,we are buying few rf and antenna tools. we work on rf active- amplifiers, rf passive-couplers/power dividersrf filters, mixers, lnas, tma/tmbalso on antennas.....base station antenna/ibs/space antennasi want ur help in finding the best fit for ou...
Electromagnetic Design and Simulation :: 04 Sep 2008 12:57 :: chandregowda :: Replies: 9 :: Views: 984
compare: hfss or microwave cst
hi,how do i make comparision between hfss and microwave cst (performance-wise)thanks in advance...
RF, Microwave, Antennas and Optics :: 28 Aug 2008 13:59 :: madengr :: Replies: 5 :: Views: 1095
hfss rf ic transformer issues
i want to use hfss to simulate a rf-ic spiral transformer.i have succeeded in simulating a single coil spiral inductor, and get the right inductance using the following formula: l=-1/2/pi/freq/im(y11)based on this, i want to use the following formula...
Electromagnetic Design and Simulation :: 23 Aug 2008 20:10 :: shlomo22 :: Replies: 2 :: Views: 444
hfss - "solve inside" / skin depth question
all objects in hfss have a check box for whether or not to solve inside. it is usually set by default except for object of high conductivity. for example when adding solve inside to a copper microstrip trace, a warning is issued solving inside a soli...
Electromagnetic Design and Simulation :: 12 Aug 2008 23:23 :: navuho :: Replies: 1 :: Views: 411
can give a list about simulation tools
can give a list about simulation tools about digital design, analog design. mix-signal design .etc...
Electromagnetic Design and Simulation :: 07 Aug 2008 19:03 :: elec-eng :: Replies: 7 :: Views: 3006
hp hfss or ansoft hfss?
hi friends;i am a beginner in microwave engineering.i would like to learn hfss but i found two different version of this.ansoft hfss9 & hp hfss5.5.i would like to khonw:what is the difference beetween them and which of them is the best.bests....
RF, Microwave, Antennas and Optics :: 06 Aug 2008 1:34 :: Nacl :: Replies: 23 :: Views: 3480
microstrip design
hi to all!can anyone tell me how to design a 50ohm microstrip line that work on 900mhz, 1800mhz, 2100mhz, 2500 mhz?i have to built in on fr4 (epsr=4.4 tangentloss=0.02 1.6mm thikness) to feed a monopole slot antenna.i try to use txline software but i...
Electromagnetic Design and Simulation :: 02 Jul 2008 18:16 :: RF-OM :: Replies: 13 :: Views: 831
lumped ports in hfss?
im building a bondwire in hfss and trying to model behavior at a certain frequency. i have the bondwire, a ground plane and a die plane, and two lumped ports at both ends of the bondwire. one of the ports seems to be functioning ok - when i do the pl...
Electromagnetic Design and Simulation :: 25 Jun 2008 11:01 :: wlcsp :: Replies: 2 :: Views: 297
ask for help: a microstrip filter design (hfss)
here is my filter working in 2ghz.but i have a problem on it. i simulated it in hfss with two same models, i found their resultes are different. in one, the two resonators can coupled as shownhttp://images.elektroda.net/94_1213955892_thumb.gifthe oth...
Electromagnetic Design and Simulation :: 24 Jun 2008 19:25 :: RF-OM :: Replies: 7 :: Views: 492
how to supress this resonance frequency in a lpf?
hello, guys. i have designed a lpf. in the graph below, it has a resonance frequency in 15ghz (mark3). i want to find the reason and supress it. does anybody know what may cause this resonance and how to solve it?thank you so much....
Electromagnetic Design and Simulation :: 17 Jun 2008 7:21 :: RF-OM :: Replies: 13 :: Views: 432
tuning of a filter
hi toall i designed interdigital filter using the equations inthe matthei book any 1 post here the tuning procedure for the resonator filter and also for the combline filter tuning thank you...
RF, Microwave, Antennas and Optics :: 13 Jun 2008 16:56 :: RF-OM :: Replies: 16 :: Views: 690
need model for isolator or circulator (ferrite)
d to desig cirulator at x-band 10%.is there any model at ads or design kit for ads for this component ( the basic one), or i should built it only in 3-d em program.olso, did some one built a model at hfss for this component ?b.reladg...
RF, Microwave, Antennas and Optics :: 07 Jun 2008 21:15 :: menz :: Replies: 4 :: Views: 795
need design of rf components in hfss
olator(waveguide)3-circulator(3 port and waveguide)4-circulator(4 port and waveguide)5-(3 port and microstrip configuration)plz help me..im in a very bad condition and i need to do this project in hfss.reply me as soon as possible.thank u...
RF, Microwave, Antennas and Optics :: 07 Jun 2008 21:13 :: menz :: Replies: 0 :: Views: 117
mwo do system design including horn antenna, possible?
i am studying a rectenna system. rf to dc i have some problem to do the system simulation.may i include a horn antenna in the system simulation to control the power? i have email the question to jian to know ist possible for ie3d. (but just now, sti...
Electromagnetic Design and Simulation :: 07 Jun 2008 17:00 :: sensen9966 :: Replies: 7 :: Views: 339
how to design quadridge horn in hfss
hi friendscan any one tell me how to design ridges used in quadridge hornabhishekabs...
Electromagnetic Design and Simulation :: 06 Jun 2008 17:35 :: Azulykit :: Replies: 21 :: Views: 956
plastic material hfss
hi to all. im simulating a monopole for an gsm/gprs/edge/umts/hspa application but i have a problem. the monopole is located on a plastic support (thickness=1mm) 3mm over fr4 substrate. (see image for details). does anyone know which type of material...
Electromagnetic Design and Simulation :: 29 May 2008 23:20 :: Azulykit :: Replies: 3 :: Views: 210
rf filter design
hi,can someone help me with some helpful information about rf filter design? the frequency that i need to use is 60 ghz. i know that the are some good books, as mathei - microwave filters,impedance matching and coupling structures, but i need somethi...
RF, Microwave, Antennas and Optics :: 19 May 2008 13:02 :: james cook :: Replies: 14 :: Views: 624
which rf simulator is better ! ! !
hi everyone,i would like your opinion on which rf simulator is better from the 3 below:@ds 2003@wr mwo2003cst microw@ve studio 5i would also like to know why which one is better and lastly which one is good for professional /beginer level.aircraft ma...
Software Problems, Hints and Reviews :: 09 May 2008 4:01 :: paracyt :: Replies: 88 :: Views: 16671
help regarding substrate and mos parameters
hello. im a new member of this forum and in desperate need for help.i have just started using a tsmc rf 90nm process and im trying to find the parameters of each layer in order to create an hfss model for a transmission line. the problem is that i ca...
Analog IC Design & Layout :: 08 May 2008 13:33 :: smoked :: Replies: 5 :: Views: 279
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
which rf simulation software is most popular in the industr?
there are so many of them out there. i just dont want to spend my time learning a particular one just to find out that no one else uses it.thanks...
Electromagnetic Design and Simulation :: 06 May 2008 13:36 :: chailingleow :: Replies: 7 :: Views: 342
beginer in rf
i am beginer in rf circuits guys pls suggest me any ebooks r software so that i am kick start form....
RF, Microwave, Antennas and Optics :: 06 May 2008 3:51 :: jecyhale :: Replies: 15 :: Views: 1017
need help, rf mems simulation with hfss
hi,i need help and support in simulating of rf mems switch with hfss. the simulation is about having a normal coplanar waveguide with a normal switch over it. when the switch is up, there is no interference of the t-line. on the other hand, when swit...
RF, Microwave, Antennas and Optics :: 13 Apr 2008 15:10 :: sama :: Replies: 1 :: Views: 249
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