Table 1.

Passive and active RFID specifications.

	13.56 MHz	2.45 GHz	UHF	Active tag
Frequency	13.56 MHz	2.45 GHz	950 MHz	300 MHz
Memory	32kbyte	128bit	528bit	None
Size	20x30mm	4x40mm	40x60mm	23.8x28x6.4mm
Power	None	None	None	DC3V coin battery
Maximum communication distance	~60mm	~250mm	~3000mm	~3000mm