Andea electronic can according to customers needs for different antenna including different size exterior and different the antenna distance.
Small  Loop   antenna
 
Technical parameters

Frequency	13.56MHz
Support protocol	ISO15693 ISO18000-3
Interface	SMA
Maximum power	10W
Antenna impedance	50Ω
Readingdistance	Single antenna about 35cm Dual antenna 100cm
Dimension	352*332*22mm
Operating temperature	-20-60 degrees Celsius
Storage temperature	-25-70 degrees Celsius
Housing material	ABS
Housing color	White
Weight	0.65kg