An Experimental Investigation of Contact Influences on the RFID Interrogator

An inclined contact surface design for interrogators with easy-pick gaps has been developed. Compared with the curved, plate, and pallet surfaces, the performance of the inclined contact surface has been investigated in the calculated electromagnetic configurations and experimental results. It is found that the inclined contact surface has enhanced reliability of data writing. Through experimental and theoretical analysis, the enhanced reliability is considered to be the combined result of the energy coupling configurations and the depressed material contacts effect.