NFC Antenna simulation and actual measurement does not match well. Anybody can help?

- January 3, 2022 at 6:08 pm
  
  mriheen
  Subscriber
  
  Hi,
  I am simulating a NFC antenna (planar coil inductor) on a polyimide substrate in HFSS and comparing the input impedance/smith chart of the simulation with the fabricated sample. I checked the inductor value at 13.6 MHz which is a good match between the physical sample and simulation. However, for the physical sample smith chart measurement, I am getting open point at 45 MHz frequency whereas in the simulation it is 66.3 MHz. I have attached the picture of both simulation and actual measurement. I want to match my simulation with the physical measurement.
  In the simulation what might cause this difference in open point frequency shift, anybody can suggest? How can I rectify that?
- January 29, 2022 at 1:07 pm
  
  Praneeth
  Ansys Employee
  
  Please note that this question is being answered in the following post - NFC Antenna simulation and actual measurement does not match well. Anybody can help? ÔÇö Ansys Learning Forum.
  Kindly refrain from creating duplicate posts in the forum.
  I am closing this post to keep the sanity of the forum.
  All the very best.

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