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...

In this paper, a novel wavelet-based detection algorithm is introduced for the detection of chipless RFID tags. The chipless RFID tag has a frequency signature which is identical to itself. Here a vector network analyser is used where the received backscatter signal is analysed in frequency domain. Thus the frequency signature is decoded by comparing the wavelet coefficients which identifies th...

In this letter, 8-bit paper based printable chipless tag is presented. The tag not only justifies the green electronic concept but also it is examined for sensing functionality. The compact tag structure comprises of seven L-shaped and one I-shaped dipole structure. These conducting tracks/dipole structures are of silver nano-particle based ink having a conductivity of 1.1 × 107 S/m. Each condu...

A novel design concept of a compact printable orientation independent chipless RFID tag is presented. The tag consists of a circular patch loaded with multiple slot ring resonators. This symmetric frequency domain based tag has the advantage to be read from any orientation with the reader antennas. The tag can be read in close proximity by chipless RFID tag reader with waveguide(s) and also can...

This paper is an overview of the structure of Radio Frequency Identification (RFID) systems and radio frequency bands used by RFID technology. It also presents a solution based on the application of RFID for brand authentication, traceability and tracking, by implementing a production management system and extending its use to traders. Keywords—Radio Frequency Identification, Tag, Tag reader, T...

An increasing number of applications use RFID in their design, but there is a lack of understanding of how mobility affects RFID performance in these applications. Unlike static RFID experiments, mobile RFID studies require more expensive equipment that are unavailable to most researchers. In this paper, we conduct machine-aided experiments to study the effects of mobility on RFID. Our results ...

There are many emerging technologies to achieve “ubiquitous networking,” which is a federated network technology that supports various enablers such as 3G and B3G mobile, RFID tags, sensors, and actuators. From a service perspective, a number of context or ambient aware services are envisaged for “ubiquitous networking.” This should be discussed with wide experience of theoretical studies and i...

many countries have created systems for monitoring food products. however, these systems need paper and label and also, cannot find the origin and final destination of food product. radio frequency identification (rfid) has the capability of monitoring foods completely and track the mentioned points. this technology also can monitor many food products simultaneously. the usage of this system ca...

NASA is investigating passive wireless sensor technology to reduce instrumentation mass and volume in ground testing, air flight, and space exploration applications. Vehicle health monitoring systems (VHMS) are desired on all aerospace programs to ensure the safety of the crew and the vehicles. Pervasive passive wireless sensor networks facilitate VHMS on aerospace vehicles. Future wireless sen...