rfid simulation

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 microsh...
RF, Microwave, Antennas and Optics :: 02 Nov 2009 15:13 :: komplz :: Replies: 0 :: Views: 39

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 c...
RF, Microwave, Antennas and Optics :: 02 Nov 2009 14:25 :: sr_raval :: Replies: 6 :: Views: 138

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 microshi...
Electromagnetic Design and Simulation :: 02 Nov 2009 7:43 :: komplz :: Replies: 0 :: Views: 36

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: 56863

i'm at a critical part to completion.

ted, 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...
Microcontrollers :: 13 Sep 2009 22:56 :: Ave_Rapina :: Replies: 1 :: Views: 180

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 termi...
Analog Circuit Design :: 27 Aug 2009 12:25 :: GGAPBE96 :: Replies: 4 :: Views: 428

what type of simulation should i do for a 10mhz oscillator?

arlo 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: 340

help required for thesis!!!!!!

p for the simulation, implemention feature, and comparsion with other technologies like (bluetooth, rfid..etc).i want to show some simulated work in comparision like (data rate, efficiency, reliabilit...
Electromagnetic Design and Simulation :: 03 Aug 2009 21:26 :: crucian :: Replies: 1 :: Views: 270

help required for thesis!!!!!!

p for the simulation, implemention feature, and comparsion with other technologies like (bluetooth, rfid..etc).i want to show some simulated work in comparision like (data rate, efficiency, reliabilit...
RF, Microwave, Antennas and Optics :: 03 Aug 2009 19:04 :: 06tl134 :: Replies: 0 :: Views: 141

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....
Software Problems, Hints and Reviews :: 14 Jul 2009 22:05 :: rfsystem :: Replies: 1 :: Views: 261

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...
RF, Microwave, Antennas and Optics :: 14 Jul 2009 20:30 :: mitch81 :: Replies: 1 :: Views: 258

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 t...
RF, Microwave, Antennas and Optics :: 05 Jul 2009 21:09 :: hayderatrah :: Replies: 6 :: Views: 1539

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: 349

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 ...
RF, Microwave, Antennas and Optics :: 28 Jun 2009 19:15 :: amatouallah :: Replies: 0 :: Views: 201

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 ...
Electromagnetic Design and Simulation :: 15 May 2009 22:26 :: FvM :: Replies: 15 :: Views: 624

handheld adsl 2+tester released by gao

6-292-0038 ext 228marketing@gaotek.comgao tek inc. is a member of gao group, which also includesgao rfid inc. - http://www.gaorfid.comgao research inc. - http://www.gaoresearch.comgao rfid asset track...
EDA Jobs, Promotions, Advertising :: 30 Apr 2009 8:02 :: gaotek2009 :: Replies: 0 :: Views: 156

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: 345

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 chi...
RF, Microwave, Antennas and Optics :: 10 Apr 2009 17:10 :: florescent :: Replies: 0 :: Views: 297

need help with simulink for rfid simulation

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 use.....
RF, Microwave, Antennas and Optics :: 01 Apr 2009 7:34 :: kidryu :: Replies: 6 :: Views: 210

latest improved adsl2+ tester from gao

-292-0038 ext 228marketing@gaocomm.com gao comm is a member of gao group, which also includes • gao rfid inc. － http://www.gaorfid.com• gao tek inc. － http://www.gaotek.com• gao research...
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 measurement...
RF, Microwave, Antennas and Optics :: 16 Mar 2009 4:21 :: marcz3333 :: Replies: 32 :: Views: 2271

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 exam...
Electromagnetic Design and Simulation :: 11 Mar 2009 7:39 :: marcz3333 :: Replies: 8 :: Views: 744

[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...
Electromagnetic Design and Simulation :: 03 Feb 2009 8:43 :: chromatik :: Replies: 4 :: Views: 1263

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 impe...
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: 4403

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: 1508

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 yo...
RF, Microwave, Antennas and Optics :: 15 Oct 2008 2:12 :: sun&moon :: Replies: 1 :: Views: 402

i need this ieee paper

archical, online learning algorithm that finds dynamic solutions to the reader collision problem in rfid systems. when the transmissions from one reader interfere with the operation of another reader,...
RF, Microwave, Antennas and Optics :: 08 Jul 2008 2:54 :: chunlee :: Replies: 1 :: Views: 219

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 ne...
RF, Microwave, Antennas and Optics :: 04 Jul 2008 11:03 :: ADS_RFMW :: Replies: 16 :: Views: 4156

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 w...
RF, Microwave, Antennas and Optics :: 10 Jun 2008 12:59 :: zirtapoz :: Replies: 7 :: Views: 738

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: 210

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 ...
RF, Microwave, Antennas and Optics :: 20 May 2008 18:04 :: alby :: Replies: 6 :: Views: 345

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 volta...
Electromagnetic Design and Simulation :: 18 Apr 2008 13:37 :: andrewmorcos :: Replies: 0 :: Views: 135

help!! characterization of low frequency rfid tag

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 per...
Electromagnetic Design and Simulation :: 17 Apr 2008 15:09 :: simon yong :: Replies: 1 :: Views: 165

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 giv...
Electromagnetic Design and Simulation :: 14 Apr 2008 16:49 :: andrewmorcos :: Replies: 0 :: Views: 222

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 ...
Electromagnetic Design and Simulation :: 10 Apr 2008 16:49 :: andrewmorcos :: Replies: 29 :: Views: 3477

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: 1527

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 superv...
Electromagnetic Design and Simulation :: 26 Mar 2008 11:00 :: streamlet :: Replies: 2 :: Views: 363

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...
Electromagnetic Design and Simulation :: 26 Mar 2008 10:48 :: streamlet :: Replies: 1 :: Views: 240

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 p...
RF, Microwave, Antennas and Optics :: 06 Mar 2008 19:51 :: eejli :: Replies: 5 :: Views: 267

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 transformer...
RF, Microwave, Antennas and Optics :: 13 Feb 2008 10:15 :: joensd :: Replies: 8 :: Views: 306

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: 654

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 (tran...
RF, Microwave, Antennas and Optics :: 10 Jan 2008 14:28 :: jayce3390 :: Replies: 13 :: Views: 298

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 veh...
RF, Microwave, Antennas and Optics :: 08 Jan 2008 14:12 :: Element7k :: Replies: 2 :: Views: 405

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 constrai...
RF, Microwave, Antennas and Optics :: 27 Jul 2007 11:12 :: mdusan :: Replies: 8 :: Views: 1929

how to set port impedance in hfss to simulate rfid antenna

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 design...
Electromagnetic Design and Simulation :: 23 May 2007 4:24 :: fantastic :: Replies: 3 :: Views: 624

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: 3681

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: 255

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.......
RF, Microwave, Antennas and Optics :: 13 Mar 2007 19:27 :: tanzil_dhk :: Replies: 12 :: Views: 306

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...
RF, Microwave, Antennas and Optics :: 08 Mar 2007 1:01 :: OpAmp :: Replies: 3 :: Views: 279

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: 156

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: 396

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...
Electromagnetic Design and Simulation :: 20 Feb 2007 23:49 :: Kilokahn :: Replies: 6 :: Views: 1671

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: 186

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: 168

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...
RF, Microwave, Antennas and Optics :: 03 Dec 2006 15:07 :: khouly :: Replies: 2 :: Views: 378

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 simu...
Electromagnetic Design and Simulation :: 20 Oct 2006 15:10 :: shakeelsultan :: Replies: 1 :: Views: 387

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 t...
Electromagnetic Design and Simulation :: 05 Jun 2006 7:06 :: oct815 :: Replies: 6 :: Views: 744

theoretical and exsperimental reader range in rfid uhf tag

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 f...
RF, Microwave, Antennas and Optics :: 24 May 2006 4:45 :: tomcat_x :: Replies: 4 :: Views: 438

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: 957

dipole simulation with ansoft designer

hello,im trying to design a dipole antenna with ansoft designer.this dipole must be connected to rfid chip.lambda/4 lambda/4=======[]=======rfidchipive separated the dipole into two rectangle of lambd...
Electromagnetic Design and Simulation :: 11 Feb 2006 1:44 :: antp :: Replies: 1 :: Views: 378

sonet rfid antenna simulation questions

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 spic...
Electromagnetic Design and Simulation :: 21 Jan 2006 22:57 :: rautio :: Replies: 4 :: Views: 456

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 ...
Analog IC Design & Layout :: 13 Jun 2004 14:41 :: thcm :: Replies: 4 :: Views: 933

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