Hello
I’m currently designing an NFC product using the ST25R3911B reader IC and evaluating two standard NFC antennas from Leankon for read distance performance:
LK1860701 (larger size)
LK1860601 (smaller size)
Test Setup & Observations:
Matching Circuit Optimization:
Used datasheet parameters to optimize the matching network for both antennas.
Followed the recommended test methodology from the datasheet.
Test Tag:
Evaluated performance using ST’s Tag 5 as the reference target.
Results:
Both antennas achieved a similar read distance of ~80mm.
However, according to Leankon’s datasheet, the LK1860701 should achieve ~100mm.
Questions:
Is this discrepancy normal? Could there be variations due to environmental factors or matching circuit tuning?
Are there any key considerations I might have missed to further improve the read distance?
For reference, two antenna datasheets are attached,
LK1860101 NFC antenna
LK1860701 NFC Antenna
I’d appreciate any insights or suggestions. Thank you!
