| Search found 68 matches on edaboard.com: rfid simulation ansoft designer simulation rfid rfid 13 56 lf rfid rfid reader |
metal uhf rfid tag simulation
hi to my friendsi am simulating a uhf rfid tag,layout is like:///pet(0.5mm)///metal(0.018mm)///pet(4mm)///metal(0.018)reflect layout///pet(0.05)port setting:p1:internal port(14+j144)p2:ground ref(associate with p1)s(1,1):fre:914mhzimp:z0*(1.013+j0.06...
RF, Microwave, Antennas and Optics :: 07 Nov 2009 7:14 :: wforest6810 :: Replies: 0 :: Views: 51
q on defining lumped port value on hfss rfid tag design
i am using hfss to design a passive rfid tag antenna. im using a microchip with impedance 16-j380 and, therefore,i have to design a rfid tag with 16+j380 to get the impedance matching with the microship. when i define a lumped port in my design, i ha...
RF, Microwave, Antennas and Optics :: 02 Nov 2009 15:13 :: komplz :: Replies: 0 :: Views: 66
how to find inductance of rfid multiturn loop antenna
dear all,i have designed one rfid pcb loop antenna,how can i calculate the inductance of the antenna?i dont have lcr meter or any other measuring instruments,if i will get the inductance from that i can able to calculate total parallel capacitance,no...
RF, Microwave, Antennas and Optics :: 02 Nov 2009 14:25 :: sr_raval :: Replies: 6 :: Views: 219
q on defining hfss lumped port value when designing rfid ant
i am using hfss to design a passive rfid tag antenna.im using a microchip with impedance 16-j380 and, therefore,i have to design a rfid tag with 16+j380 to get the impedance matching with the microship. when i define a lumped port in my design, i hav...
Electromagnetic Design and Simulation :: 02 Nov 2009 7:43 :: komplz :: Replies: 0 :: Views: 72
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: 57469
i'm at a critical part to completion.
as the matter stated, i did my part of the programming... im using jhd 162a lcd, pic 16f877a, and an unknown wiegand rfid reader and am using ccs. the following codes written is running fairly well and might need some optimization. but thats not the...
Microcontrollers :: 13 Sep 2009 22:56 :: Ave_Rapina :: Replies: 1 :: Views: 198
measuring input impedance of a rfid tag in ads
i have to measure the input impedance variation (with frequency) of a rfid tag (a simple circuit) from the antennas terminals (call them in1 and in2). how should i do this in ads? i tried with a termination between the inputs and with a hb simulation...
Analog Circuit Design :: 27 Aug 2009 12:25 :: GGAPBE96 :: Replies: 4 :: Views: 437
what type of simulation should i do for a 10mhz oscillator?
that runs at 10mhzi had simulate fast/slow corner and find that its within +-20%i also done monte carlo simulationis there any other type of simulation that i should be doing? say for application in rfid.thank you for your helphitotsu...
Analog IC Design & Layout :: 23 Aug 2009 2:32 :: Hitotsu :: Replies: 6 :: Views: 352
help required for thesis!!!!!!
hello.. i m student of last year telecommunication engineering, i need some help regarding the topic zigbee (ieee standerd) ,basically this is not a new technology but not yet implemented in industries,and i wanted to do some research on thi...
Electromagnetic Design and Simulation :: 03 Aug 2009 21:26 :: crucian :: Replies: 1 :: Views: 270
help required for thesis!!!!!!
hello.. i m student of last year telecommunication engineering, i need some help regarding the topic zigbee (ieee standerd) ,basically this is not a new technology but not yet implemented in industries,and i wanted to do some research on thi...
RF, Microwave, Antennas and Optics :: 03 Aug 2009 19:04 :: 06tl134 :: Replies: 0 :: Views: 147
rfid antenna design with cst simulator
hi,im working with cst simulator, but i dont know how excite the port of this antenna!! its the s discret port parameter! where can i put the port?help please!...
RF, Microwave, Antennas and Optics :: 15 Jul 2009 23:28 :: mitch81 :: Replies: 0 :: Views: 249
problem regarding dolphin smash
hi...i have been trying to model a rfid system in vhdl-ams using the dolphin smash. but my problem is the .pat file is not being created properly. i cant understand whether it can be created manually. also please tell me whether its altogher desirabl...
Software Problems, Hints and Reviews :: 14 Jul 2009 22:05 :: rfsystem :: Replies: 1 :: Views: 270
rfid tag antenna design with cst microwaves studio!!!
hi,for future work, first i want to replicate the simulation presented in document 1, but i can not find the same results. i put the port of excitation between the antenna and the tag, but the results are not the same. i think the problem lies in the...
RF, Microwave, Antennas and Optics :: 14 Jul 2009 20:30 :: mitch81 :: Replies: 1 :: Views: 306
modeling and simulation on rfid using simulink
hi,anyone has any matlab and simulink simulation and modeling on rfid?i am currently doing project on rfid to quantify and evaluate the performance of rfid system mainly on communication part.i have tried to built the transmitter and receiver in syst...
RF, Microwave, Antennas and Optics :: 05 Jul 2009 21:09 :: hayderatrah :: Replies: 6 :: Views: 1590
rfid - need some help with the simulation
hello can any one help me on this simulationattached file...
Digital communication :: 30 Jun 2009 18:27 :: hayderatrah :: Replies: 3 :: Views: 364
rfid antenna emission and reception
hi,i have a project to do about rfid antenna in transmission and reception.i work with hfss.can any one gives me an executable example of simulation of rfid antenna with hfss.please i need help the earlier that possibleand thanks....
RF, Microwave, Antennas and Optics :: 28 Jun 2009 19:15 :: amatouallah :: Replies: 0 :: Views: 204
urgent: coil lc resonance pspice
can some people help me with this please?i want to model the coil on the left and what i currently have is what is on the right. i probably should add some switches to model the ac voltage applied to the coil but lets just say the coil is closed and ...
Electromagnetic Design and Simulation :: 15 May 2009 22:26 :: FvM :: Replies: 15 :: Views: 633
handheld adsl 2+tester released by gao
toronto, canada - gao tek inc. (www.gaotek.com) recommends this compact, handheld and easy-to-use test instrument - adsl 2+ tester (gao2041), which is used to test adsl, adsl 2, adsl 2+ and radsl lines. this light weight, portable tester quickly dete...
EDA Jobs, Promotions, Advertising :: 30 Apr 2009 8:02 :: gaotek2009 :: Replies: 0 :: Views: 168
prototypes of the antennas of tag rfid, simulated by hfss
helps please prototypes of the antennas of tag rfid, simulated by hfss...
Electromagnetic Design and Simulation :: 21 Apr 2009 23:14 :: mimoofdm :: Replies: 3 :: Views: 354
passive rfid and its power, cadence simulation
hi. i am designing a wireless sensor which is very similar with 13.56 mhz passive rfid which must need a charge pump that harvests power from rf signal in order to feed the rest of components in a chip. my question is what kind of power (or voltage) ...
RF, Microwave, Antennas and Optics :: 10 Apr 2009 17:10 :: florescent :: Replies: 0 :: Views: 300
need help with simulink for rfid simulation
currently doing my final year project and still having problems on understanding the simulink..can someone please guide me on how to do simulations on hf rfid...?really really need help here...im confused with all the blocks..dont know which one to u...
RF, Microwave, Antennas and Optics :: 01 Apr 2009 7:34 :: kidryu :: Replies: 6 :: Views: 225
latest improved adsl2+ tester from gao
toronto, canada–gao comm (www.gaocomm.com) presents its latest upgraded version of adsl2+ tester(gao5856).this compact,easy-to-use adsl2+ tester supports various adsl line standards,and it is especially useful for installation, maintenance and measur...
EDA Jobs, Promotions, Advertising :: 25 Mar 2009 4:51 :: GAOComm :: Replies: 0 :: Views: 162
rfid tag measurements
hello to all!!what is the best method for measuring rfid passive tags for uhf?the tags dont include the chips.how should i measure a back-scattering from an rfid tag (without the chip)?the measurements should be in tne physical layer. (em wave scatte...
RF, Microwave, Antennas and Optics :: 16 Mar 2009 4:21 :: marcz3333 :: Replies: 32 :: Views: 2307
ansoft designer - need help
i am currently trying to simulate a small loop rfid receiver antenna on uhf for near field. i have never tried ansoft designer so i realli wish someone could help me to startup my simulation. for example what to choose for the layout technolody. besi...
Electromagnetic Design and Simulation :: 11 Mar 2009 7:39 :: marcz3333 :: Replies: 8 :: Views: 744
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[request] rfid antenna design tips ?
hello all,im not expert in rfid antenna design, especially magnetic coupling. but thats my today (and for the rest of the month) duty ...i have a few books, about rfid theory (physics, economy, and so on...) but not so many information about layout d...
Electromagnetic Design and Simulation :: 03 Feb 2009 8:43 :: chromatik :: Replies: 4 :: Views: 1314
uhf rfid tag simulation sample
hi,i am new to antenna simulation and am looking for a tutorial on uhf rfid tag simulation using hfss.in particular, i am looking for a tutorial that demonstrates how to model the antenna, the ic impedance and the kind of port modeling i need to use....
RF, Microwave, Antennas and Optics :: 26 Jan 2009 18:24 :: rahul1782 :: Replies: 0 :: Views: 390
final year project ideas needed....!!!!
hi can anyone suggest me about some good feasible project related to ectronics and telecom covering both fields...!!!!:d...
Electronic Elementary Questions :: 08 Dec 2008 10:57 :: caribbeanboy :: Replies: 23 :: Views: 4592
rfid simulation in matlab
can any buddy give me rfid simulation code in matlab...
Electromagnetic Design and Simulation :: 11 Nov 2008 9:53 :: mitgrace :: Replies: 4 :: Views: 1598
rfid antenna
hi, everybodyid like to simulate rfid antenna at 13.65 mhz by hfss. how do i setup my airbox? if i still follow the rule that the height of airbox is approximately quater-wavelength, it is huge. do you have any suggestions? thank you!...
RF, Microwave, Antennas and Optics :: 15 Oct 2008 2:12 :: sun&moon :: Replies: 1 :: Views: 414
i need this ieee paper
hi every body. i need these ieee papers. i ll appriciate any body who will send them to me. thanks alot.1-hiq: a hierarchical q-learning algorithm to solve the reader collision problemho, j.; engels, d.w.; sarma, s.e.applications and the internet wor...
RF, Microwave, Antennas and Optics :: 08 Jul 2008 2:54 :: chunlee :: Replies: 1 :: Views: 225
s parameters & simulator
hi all,i am designing a loop antenna (for magnetic field) ,i am measuring its performance by measuring coupling s21 with a second antenna of same type kept at a distance. i want to know whether my approch is right.my doubt is s parameter calculations...
RF, Microwave, Antennas and Optics :: 05 Jul 2008 0:14 :: RF-OM :: Replies: 12 :: Views: 726
13.56mhz pa for rfid reader reference design.
i found an application note from microchip about a 13.56mhz rfid reader reference design. i attached the schematic here. i have some questions:...for the power amplifier, how to design the matching network? how to decide the component value?in this p...
RF, Microwave, Antennas and Optics :: 04 Jul 2008 11:03 :: ADS_RFMW :: Replies: 16 :: Views: 4264
impedance matching. antenna simulation
i need to match my antenna to an impedance of 48 - j 148 ohms. (microchip impedance). so the conjugate of that should be my antenna impedance. how to measure this ? usually we have 50 ohm system and we use a 50 ohm port .can we use a 48 ohm port in s...
RF, Microwave, Antennas and Optics :: 10 Jun 2008 12:59 :: zirtapoz :: Replies: 7 :: Views: 741
ask modulator for 13.56 mhz rfid tag
hi friendscan any one plz tell me how to simulate, the ask modulator circuit used in the 13.56 mhz rfid taghttp://images.elektroda.net/96_1209900078_thumb.jpg...
Electronic Elementary Questions :: 25 May 2008 20:20 :: Slayerza :: Replies: 3 :: Views: 219
help with rf mosfet and simulation
hello, im having problems to probe the pspice model of a rf mosfet.the mosfet is : arf446ab froam microsemi(http://www.microsemi.com/catalog/part.asp?partno=arf446g). in their site they post a pspice model for their transistors.the model for this one...
RF, Microwave, Antennas and Optics :: 20 May 2008 18:04 :: alby :: Replies: 6 :: Views: 351
positionning system using rfid
hello,i am woking on my project which is a positionning system using rfid tags at 13.56 mhzmy task now is to simulate a system having 1 rfid transponder and 4 rfid readers and to get the induced voltage in each of the readers. and depending on the vo...
Electromagnetic Design and Simulation :: 18 Apr 2008 13:37 :: andrewmorcos :: Replies: 0 :: Views: 141
help!! characterization of low frequency rfid tag
im doing final year project on title i mentioned above.i have few questions need to ask:1)may i know how to conduct an experiment for a lf rfid tag by simulation?2)how to ensure the characteristic of a lf rfid tag?3)what is the mean of performance fo...
Electromagnetic Design and Simulation :: 17 Apr 2008 15:09 :: simon yong :: Replies: 1 :: Views: 171
rfid tag problem
hello,when i simulate an rfid tag on cst i get a negative imaginary impedance at the 13.56 mhz frequency.can anyone explain this to me please?...
Electromagnetic Design and Simulation :: 17 Apr 2008 11:40 :: andrewmorcos :: Replies: 2 :: Views: 174
rfid on cst
hello,i am having my bachelor thesis on rfid. i need to simulate a rfid 13.56 tag using cst microwave studio.can anyone help me in that?attached is my simulation trial, but unfortenately it doesnt give any good results.so if you have any idea why is ...
Electromagnetic Design and Simulation :: 14 Apr 2008 16:49 :: andrewmorcos :: Replies: 0 :: Views: 225
simulating an rfid tag
hi,i was wondering if anyone can suggest a good em simulator that is suitable for rfid tags (planar spiral antenna). im looking at 13.56mhz for the chosen frequency. can anyone point me in the right direction because there are so many packages out t...
Electromagnetic Design and Simulation :: 10 Apr 2008 16:49 :: andrewmorcos :: Replies: 29 :: Views: 3525
what is the rfid?
what is the rfid?what is a simple example?how to push it into a cheap productions?tia...
RF, Microwave, Antennas and Optics :: 03 Apr 2008 6:45 :: kokei74 :: Replies: 20 :: Views: 1533
help : rfid simulation by matlab
i am doing the rfid simulation in my final year project.may i know who can help me in using matlab to simulate rfid tag?any example or tutorial that can help me?i never use matlab before but my supervisor request me to do so....
Electromagnetic Design and Simulation :: 26 Mar 2008 11:00 :: streamlet :: Replies: 2 :: Views: 396
low frequency rfid and bandwidth choosing
i need to do simulation base on the low frequency rfid.simulation is base on matlab and how to characterize it.so i will simulate the radiation pattern of antennas, and might be the smith chart.what i want to ask is what else i can simulate to charac...
Electromagnetic Design and Simulation :: 26 Mar 2008 10:48 :: streamlet :: Replies: 1 :: Views: 249
is there any good eda tool for simulating rfid system?
hi all, i am working on rfid system design. currently, i am working on the rf-to-dc converter part. i use cadence for this design but i have a hard time to simulate my system because:1.it is pretty hard to generate the ook waveform i want. an...
RF, Microwave, Antennas and Optics :: 06 Mar 2008 19:51 :: eejli :: Replies: 5 :: Views: 273
need help with understanding amplifier
hi,i have the following broadband power amplifier 400m-1g that i need to reverse-engineer sort of and having problems calculating the impedance match.i do understand that the coaxial cable transformers (zo=10ohms) sort out the basic transformation ra...
RF, Microwave, Antennas and Optics :: 13 Feb 2008 10:15 :: joensd :: Replies: 8 :: Views: 315
how to simulate rfid coil tag in momentum?
does anyone simulating rfid tags in momentum?plz, sharing examples.thz...
Electromagnetic Design and Simulation :: 21 Jan 2008 11:27 :: ADS_RFMW :: Replies: 4 :: Views: 657
the uncompromise among transient, hb and env???
hello everyone, i am working on logamp detector development using ads tool. used topology: http://i28.photobucket.com/albums/c222/nghichnham/logamp.jpgthere are the uncompromises among transient (trans), harmonic balance (hb) and envelope (env) simul...
RF, Microwave, Antennas and Optics :: 10 Jan 2008 14:28 :: jayce3390 :: Replies: 13 :: Views: 298
rfid simulation
hi everyone,i am trying to simulate the effect of multipath fading on a rfid system used specifiaccly for evi (electronic vehicle identification). i have successfully simulated the effect that the vehicles has on the antenna(s) radiation pattern.howe...
RF, Microwave, Antennas and Optics :: 08 Jan 2008 14:12 :: Element7k :: Replies: 2 :: Views: 414
build loop pcb antenna for em4095 rfid reader
hi,im building rfid reader with em4095 and i want to implement loop pcb antenna. i was wondering if you can give me some guidelines for calculating the copper thickness, track width and width constraint and also number of loops and antenna dimensions...
RF, Microwave, Antennas and Optics :: 27 Jul 2007 11:12 :: mdusan :: Replies: 8 :: Views: 2007
how to set port impedance in hfss to simulate rfid antenna
hello, all friends here. i am very glad to find this forum where people are so enthusiastic and friendly. i am confused by a rfid antenna simulation problem for many days. if the chips impedance is 20-j160, the antenna designed should have a impedanc...
Electromagnetic Design and Simulation :: 23 May 2007 4:24 :: fantastic :: Replies: 3 :: Views: 627
rfid + mcu
:d anyone interested in developing rfid (radio frequency identification) system with microcontroller? 8o...
Microcontrollers :: 26 Mar 2007 14:20 :: qv1985 :: Replies: 14 :: Views: 3759
rfid chip example
hi, can any one plz give me a tutorial or pdf or any good link on rfid tag(asic chip) design example with modeling and simulation.thanx....
ASIC Design Methodologies & Tools (Digital) :: 17 Mar 2007 9:49 :: wice :: Replies: 1 :: Views: 258
question about rf transmitter circuit
hi, i have some question about rf transmitter circuit for the rfid reader attached here.(this circuit is designed by some students of coronell university):1. what is the significance of r8 here....2. the circuit is giving very low current in the o...
RF, Microwave, Antennas and Optics :: 13 Mar 2007 19:27 :: tanzil_dhk :: Replies: 12 :: Views: 312
em simulator for folded p.a.t.c.h antenna
hi to all, i want to know which would be the best em simulator for my requirements:1. i want to design a folded p.a.t.c.h antenna for 2.45 ghz.. size is a major constraint !!! this would lead to reduced gain of the antenna, so it has to be a...
Electromagnetic Design and Simulation :: 08 Mar 2007 20:45 :: nazanin :: Replies: 14 :: Views: 1431
what is the difference btween planar inductor & rfid coi
i am interested about rfid coil tag design but i have some doubts about.rfid coil tag is fundamentally an inductor or antenna?what kind of care i must have in design and simulation?if it is an antenna i must consider in simulation ground plane?what k...
RF, Microwave, Antennas and Optics :: 08 Mar 2007 1:01 :: OpAmp :: Replies: 3 :: Views: 288
help in rfid
i am looking for software about rfid simulation,if someone have pls post it or send link to download it.thk very much...
Software Requests :: 27 Feb 2007 15:54 :: ittefaq11 :: Replies: 5 :: Views: 159
rfid simulation
how to simulate a rfid circuit using mulitsim/pspice or any other software??? any idea would be helpfulthanks...
RF, Microwave, Antennas and Optics :: 23 Feb 2007 21:07 :: OpAmp :: Replies: 4 :: Views: 402
hfss dipole antenna
i am very new to the use of ansoft hfss. i have v10.i am trying to model a simple dipole antenna, but so far i seem to be having more difficulty than i should.i modeled a dipole with a short feed and tried to setup a gap source with a lumped port be...
Electromagnetic Design and Simulation :: 20 Feb 2007 23:49 :: Kilokahn :: Replies: 6 :: Views: 1737
rfid simulation on matlab
hii need to simulate rfid ( radio frequency for identification) on matlab to recognize between id card and suitable device....
Digital communication :: 22 Jan 2007 19:08 :: khaldoon99 :: Replies: 0 :: Views: 192
rfid simulation
i am doing project about rfid so i need the software or simulation f it.if sombody have pit pls post it thks!...
Digital communication :: 14 Dec 2006 14:05 :: qv1985 :: Replies: 0 :: Views: 174
900mhz rf simulation software
hi,i am develping my phd in rfid, currently there is a bunch of softwares capable of simulating the radiation in 3d. ive begun working with hfss, but is it good enough to to simulate the response from a tag design?because i want to use a schottky mod...
RF, Microwave, Antennas and Optics :: 03 Dec 2006 15:07 :: khouly :: Replies: 2 :: Views: 381
rfid tag and reader simulation!!
salam to every one.im doing my final project in rfid. and i have to design a tag and a reader at 125khz. i donot want to do any hardware work. so plz tell me is there any software in which i can simulate my tag and reader and do there communication?...
Electromagnetic Design and Simulation :: 20 Oct 2006 15:10 :: shakeelsultan :: Replies: 1 :: Views: 387
verilog question
hi,below is a partial of my coding. i have a problem from this code. when i do a synthesis in design_compiler i have warning called where:information: there are 1 potential problems in your design. please run check_design for more information. (lint-...
ASIC Design Methodologies & Tools (Digital) :: 07 Sep 2006 8:18 :: funster :: Replies: 21 :: Views: 978
rfid tag and reader simulation
hello,i was wondering if it is possible to simulate a simple inductive coupling setupinvolving a small tag antenna (5cm by 5cm) with a reader loop antenna (10cm by 10cm) at 13.56mhz using hfss. is this frequency feasible in hfss, i am guessing it i...
Electromagnetic Design and Simulation :: 05 Jun 2006 7:06 :: oct815 :: Replies: 6 :: Views: 756
theoretical and exsperimental reader range in rfid uhf tag
hi, ive a question for which need your help!!ive simulated a microstrip antenna on ground plane for an uhf rfid tag with hfss 10 and ive obtained a good matching for zin and a good g(7db).after using friis formula for reader range (r=(λ/4π)...
RF, Microwave, Antennas and Optics :: 24 May 2006 4:45 :: tomcat_x :: Replies: 4 :: Views: 444
how to define finite substrate in ie3d
hi,i am wondering if i can define finite substrate in ie3d. i find the default substrate size is too big. thank you.danda821...
Electromagnetic Design and Simulation :: 25 Mar 2006 16:54 :: jimliu12 :: Replies: 15 :: Views: 981
sonet rfid antenna simulation questions
hi guys i am first day user of em simulation so please dont be angree for stupid questions .)well i need to design hf rfid antenna and it was possible to simulate spiral rectangular structure. but netlist got from spice does show different model com...
Electromagnetic Design and Simulation :: 21 Jan 2006 22:57 :: rautio :: Replies: 4 :: Views: 468
design of vco for rfid application....
ive just got the title of my big project:(superheterodyne transceiver) design of if vco rfid application at 868 mhz using cmos technology. 8o now im quite blur on where to begin. can someone pls tell where should i start in this research. your replie...
Analog IC Design & Layout :: 13 Jun 2004 14:41 :: thcm :: Replies: 4 :: Views: 939
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