Method for the Real-Time Localization of passive SAW-based RFID systems around corners

In this paper, we present a novel Real-Time Localization System (RTLS) based upon 2.45 GHZ Surface Acoustic Wave (SAW) Radio Frequency Identification (RFID) systems. The system utilizes a novel localization method that combines the angular rotation of the RFID readers’ antenna or read beam with the inherent time-of-flight (TOF) distance measurement capabilities using a csc
²
θ pattern for acquisition of a targeted tag around corners.