RFID Coil design and Simulation

[adnan012]

hi

I need some design application notes for RFID coils. Can i simulate coil in ADS or HFSS etc. Is there any example available for ADS momentum. Is it possible to beam forming using coil arrays?

Regards

 

[volker@muehlhaus]

What RFID frequency band? UHF?

 

[adnan012]

i want to use 390MHz.

 

[volker@muehlhaus]

What I have seen for UHF RFID readers are patch antennas.

EM simulation is possible and useful, planar simulation with ADS Momentum is a good starting point.
A former collegue designed this using CST:
https://patents.google.com/patent/DE102012101443A1/zh

 

[D.A.(Tony)Stewart]

why 390 MHz ? https://en.wikipedia.org/wiki/Radio-frequency_identification

 

[streamlet]

Freespace wavelength at 390 MHz is 77 cm. I guess you are talking about coils for near-field applications.

Both ADS Momentum and HFSS can help for the coil design, though the former should be faster and easier in this case.

 

[adnan012]

Thanks for reply.

Yes i am talking about near field applications.