TIME-DOMAIN MEASUREMENT OF TIME-CODED UWB CHIPLESS RFID TAGS

Time-domain Measurement of Time-coded Uwb Chipless Rfid Tags

Chipless ultra-wideband (UWB) has been proposed as a low-cost alternative for radiofrequency identification (RFID). In this paper, a comprehensible theoretical introduction to time-domain operation of a UWB RFID tag is described, and a circuit model is proposed. For commercial applications low-cost RFID readers are demanded. To this end, this paper addresses the measurement of time-coded UWB ch...

Chipless Rfid Tags

a compact multi resonator circuit for Chipless rfid tag is presented in this paper. The basic resonator is a shorted λ/4 Stepped Impedance Resonator (SIR). The tag is designed and simulated using High Frequency Structure Simulator and a 6 bit prototype is fabricated on rtduroid(εr=2.2 and tanδ=.0008) Substrate in area of 4.5x2cm2. Data is coded as amplitude variations in the frequency domain. H...

Mastering the Electromagnetic Signature of Chipless RFID Tags

The rapid development in wireless identification devices and subsequent applications is at the origin of intensive investigations in order to fulfill various constraints that can exist when implementing applications in practice. Chipless technologies have many advantages. They are fundamentally wireless and powerless devices, and can be all passive components, which potentially means infinite l...

Coupled Bunch Hairpin Resonator Based Chipless RFID Tags

Multiresonator is an essential component of spectral signature based chipless RFID tags [4–33]. This chapter deals with the design and development of coupled bunch hairpin resonator for multiresonating circuit. A brief discussion on hairpin resonator and evolution of coupled bunch hairpin resonator are presented. The data encoding technique applied is also illustrated in detail. Two disc monopo...

Fully Printed Chipless RFID Tags towards Item-Level Tracking Applications