can anyone tell me if it is possible to read the new Active RFID tags with band same as wifi 2.4 ghz in Android or Java Smartphones? some reference links for study will be very helpful.
Unfortunately, no. NFC (near field communications, the device in Android phones used to read RFID tags) operates on 13.56Mhz.
NFC: http://developer.android.com/guide/topics/connectivity/nfc/index.html
Frequency-specific information: http://en.wikipedia.org/wiki/Near_field_communication