Method of Frequency Coding in Microwave RFID

The concept of constructing of a radio frequency identification system at frequencies above 6 GHz based on frequency coding using radio frequency identification tags on resonators on bulk acoustic waves with high Q factor is presented. There are real technical possibilities for creating of the RFID system in the frequency band 6-30 GHz with acoustoelectronic FBAR resonators. Such systems will be protected to electromagnetic fields and ionizing radiation and they will have the high temperature stability characteristic of FBAR resonators