SEARCH TIME REDUCTION WITH INCREASED ACCURACY DURING RESONANT DEVICE INTERROGATION

摘要

Methods for determining the resonant frequency for the interrogation of a resonant device include steps for generating and transmitting RF interrogation pulses of various bandwidths to energize one or more SAW resonator elements Initial RF interrogation pulses have a relatively wide bandwidth, such that the general location of a resonant device's resonant frequency can be expediently determined. Then, interrogation pulses having smaller bandwidth pulses can be transmitted near the determined general location of resonance to further narrow the location of resonance.