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Full-Text Articles in Systems and Communications
Uhf Rfid Antenna Impedance Matching Techniques, Kamron Sockolov
Uhf Rfid Antenna Impedance Matching Techniques, Kamron Sockolov
Master's Theses
Radio Frequency Identification (RFID) systems use electromagnetic signals to wirelessly identify and track RFID-tagged objects. A reader transmits a carrier wave request signal to an RFID tag, which then transmits a unique identification signal back to the reader. Applications include supply chain inventory management, automated toll booth fee systems, sports event timing, restricted access control, pet monitoring and retail theft prevention. An RFID tag includes an antenna connected to a Radio Frequency Integrated Circuit (RFIC). RFID tags in the ultra-high frequency (UHF), industrial, scientific and medical (ISM) 902-928MHz band and global Electronic Product Code (EPC) 860‑960MHz band are powered passively …
Rfid Check-In System For Safe Routes To School At Hawthorne Elementary, Paul Banel
Rfid Check-In System For Safe Routes To School At Hawthorne Elementary, Paul Banel
Electrical Engineering
The system uses a low frequency Radio Frequency Identification (RFID) reader and passive RFID tags to help the Safe Routes to School program at Hawthorne Elementary in San Luis Obispo track the number of children who participate in the program. Children will carry passive RFID tags and scan them at the reader each morning that they walk or bike to school. The system tracks the total number of students that walk and bike each day, as well as the number of times each individual child participates over the course of many days. The Safe Routes program hopes to use this …
Rfid Modeling, Characterization, And Optimization, Joseph A. Cudrnak
Rfid Modeling, Characterization, And Optimization, Joseph A. Cudrnak
Electrical Engineering
Passive RFID tags may be used to transmit a message to a reader. This technology is useful for many applications, including inventory systems. However, due to electromagnetic cancellation on conductive surfaces, the reader cannot detect RFID tags placed directly on conductive objects. Using tag characterization in an RF anechoic chamber and modeling in HFSS, three types of Omni ID tags were characterized and a design was proposed to maximize signal power delivered to the reader.