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18 Threads found on edaboard.com: Rfid Hfss Uhf
hi guys, i have used hfss for a long time,and i also designed and fabricated two or three rfid tag antenna for various applications.but now,i confuse about some setup about simulation,beacause i had seen many different viewpoint to this,but i believe some of them must be wrong or fallacious,i hope u can help me and make clear why. my questons a
Hi everyone, I am new to the field of uhf Passive rfid tag antanna's. I am using hfss tool to reproduce the tag antenna of a research paper. I have made the structure and set all the parameters like substrate material, conductor thickness, (quater wavelength) radiation box, solution frequency 891 MHz and most importantly the chip (...)
i am making my FYP "design and analysis of Low profile uhf rfid tag antenna for liquid bottles"on hfss and i need to learn basic terms and system concepts involved in rfid, can anyone guide me which steps/note key concepts i have to follow during literature review?????
See this Sonnet application note for a 900 MHz tag layout with extended bandwidth: What do you mean by "hfss S11 formula is wrong" ?
Folks, I am trying to design an antenna for uhf rfid, resonating at 865MHz using hfss. I started with a simple dipole antenna. But when I tried to simulate the same using hfss, I had seen VSWR > 2, in the order of seven. What are the different methodologies to be used to have antenna with lower VSWR? I have taken (...)
chip NXP+antenna rfid uhf hello, chip impedance : 22-195j substrat: polyester (PET) : h=50 um antenna: aliminum: h1=9 um
I've simulated an uhf rfid antenna using hfss. And I got the S11 calculated by hfss. tried to calculate S11 using the formula Γ=(zc-za*)/(zc+za) zc for chip impedance (the conjugation of the port impedance setted in hfss) and za for antenna impedan
I've simulated an rfid tag antenna by both ie3d and hfss. (The antenna is posted by K. V. Seshagiri Rao, in the paper "Antenna Design for uhf rfid Tags A Review and a Practical Application".) But there are big differences in the results. In ie3d, the impedance at 875Mhz is about 50+j420.(close to the result in the paper) (...)
hello all, i do design for antenna rfid uhf in ZELAND and i integrated with virtual chip , my first was good but i can design a good antenna in hfss .. if any one can help me that will begreat for me > and for the chip i have question about the modulation of the receptor of the Radio Frequency . my question is : if we can make chip (...)
I've simulated an rfid tag antenna by both ie3d and hfss. (The antenna is posted by K. V. Seshagiri Rao, in the paper "Antenna Design for uhf rfid Tags A Review and a Practical Application".) But there are big differences in the results. In ie3d, the impedance at 875Mhz is about 50+j420.(close to the result in the (...)
Hello all, i need rfid uhf design in hfss ,really it's very important for me to my study project if anyone can help that will be great for me many thanks in advance mohamed.
salut il te suffit de chercher sur google "rfid antenna uhf". il y a plein d'exemples! bon courage
Here a good article HFS_rfid antennas " "
Here a good article about rfid antenna and hfss " "
Hi, I search an example of basic project of uhf rfid antenna in hfss(868MHZ). Could you help
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. Most of the papers I have read discuss the geometry and results but I have not been (...)
I am developing a reader module antenna 900MHz band (860-930MHz) which should typically have a gain of around 3 dB or so. A microstrip patch is larger and may not be suitable for the application. Prefer to use PIFA and anybody can suggest a better solution, kindly help If anybody has got an hfss or CST design example or design file for the PIFA a
I am using hfss V9.1 and I cannot open the files uploaded here. Each time I want to open them, it says "File is locked". Is there a way to go around this problem? Question: how do i represent a uhf rfid chip as a load in such simulation? I want to attach a dipole antenna to the chip. What type of port should I use? Many thanks!