International Journal of Information and Electronics Engineering
Radio Frequency IDentification (RFID) is a wireless technology that uses radio backscatter signals to purpose of identifies objects. Especially, in the microwave frequency as 2.45 GHz is growing rapidly. Since the physical environment surrounding the propagation path of radio identification is generally difficult to control, the channel characteristics in backscattering are often channel fading. There are two major sources of impairment of the RFID reader is unreadable as the tag signal propagate through the channel.