Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
I've simulated an UHF RFID antenna using HFSS. And I got the S11 calculated by HFSS.
I 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 impedance derived form HFSS
then...
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...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
