NXP RFID-Card RC663 and Distance

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by t9cpu on Mon Jul 21 00:09:06 MST 2014
Hello !

If this is not the right place sorry... but maybe someone can help me.
I have the NXP RC663 RFID Card and the Antenna is now OK. The Smith-Diagramm shows me I'm near the Point 1 and the Swr shows me a relation from 1.1:1. So I think this is OK. To read the UID is no Problem from a distance like 3 cm. But the LPCD-detection is not very well. A distance from 2-3mm is necessary to detect a card. And also not every time a card is detected.
Is there someone who has experience with it and can help me ?