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Mifare Antenna Design

Question asked by Ufuk Varlık on Jan 31, 2017
Latest reply on Feb 1, 2017 by Ufuk Varlık

In my design;

pcb total layer  : 4

Antenna layer  : 2nd

The components to be assembled are only in the fourth layer.

Real and theoric results are don't match.

I want increase inductance value of antenna, but on the contrary, the value is decreasing too.

What is reason ? thank you for yours help.
ANTENNA 1 RESULTS:
-THEORY INDUCTANCE VALUE  : 1.84 uH
-REAL INDUCTANCE VALUE        : 3.3 uH
ANTENNA 2 RESULTS: 
-THEORY INDUCTANCE VALUE  : 6.62 uH
-REAL INDUCTANCE VALUE        : 0.7 uH

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