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Yvan Duroc - IEEE Xplore Author Profile

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Despite its first applications in the 1940s and 1950s, RF identification (RFID) technology only really developed starting in the early 2000s with the development of the international Electronic Product Code standard. As its name indicates, the original function of RFID was the identification of objects, animals, and people via a tag that contains a unique identifier. However, RFID is now being giv...Show More
This paper describes an effective method for improving the detection of UHF RFID (Ultra High Frequency Radio Frequency Identification) tags in a restricted area. The so-called zoning technique is a recurring problem in practical RFID applications: it consists in detecting within an environment with multiple tags that are exclusively present in the zone of interest. The proposed method is based on ...Show More
Radio frequency identification (RFID) technology, and in particular the passive UHF (ultra-high frequencies) standard, is developing strongly with the emergence of cognitive sensor networks and especially the Internet-of-Things. A significant indicator of this evolution is that tags are increasingly equipped with new capabilities: in addition to the identification functionality, there are, for exa...Show More
A low-loss vertical transition between microstrip line and air-filled substrate integrated waveguide (AFSIW) at Ka-band is proposed. The objective is to be able to connect active components based on microstrip technology with passive components based on AFSIW technology. The coupling between the quasi-TEM mode of the microstrip line and the TE10 mode of the AFSIW guide is carried out by a slot and...Show More
This paper presents an experimental evaluation of RFID when the traditional sine waveform is replaced by pulse waveforms. This orientation is justified by recent works that show an interest in terms of improving the efficiency of energy recovery on the one hand and a better robustness to complex propagation environments on the other hand.Show More
In the context of the UHF (Ultra High Frequency) passive RFID (Radio Frequency Identification) technology, recent works have proposed a new paradigm demonstrating the possibility to perform short distance tag to tag (T2T) communications. This paper presents a study that focuses on the performance evaluation of T2T systems. Without loss of generality as to the methodology followed, dipole antennas ...Show More
In this paper, the performance evaluation of the tag to tag (T2T) communications using UHF (Ultra High Frequency) passive RFID (Radio Frequency Identification) tags is tackled. The T2T communication system is performed directly between a reader tag (RT) and a listener tag (LT) in the presence of an external electromagnetic (EM) field. Consequently, this kind of communication system implies the use...Show More
In this paper, we propose a waveform design methodology for ultra high frequency radio frequency identification (UHF RFID) systems based on the quantitative analysis of the backscattered signal. This latter is leveraged to probe the wireless propagation channel, allocate power accordingly to frequency components, and design channel-adaptive multisine signals. UHF RFID system performance is evaluat...Show More
This paper presents an Ultra High Frequency (UHF) Radio Frequency IDentification (RFID) temperature sensor integrated into a textile yarn. The tag system consists of a thermistor of which the resistance is sensitive to temperature variation. The theoretical working principle is detailed and validated using electromagnetic simulation. The UHF RFID temperature sensor is fabricated using the E-Thread...Show More
This paper presents the impact of the non-linear behavior of UHF RFID chips on the backscatter radiated signals by commercial RFID tags. In particular we analyze and quantify the power level of the third harmonic backscattered signals by the tags. The study shows the presence of a third harmonic signal for all tested UHF RFID tags, including tags equipped with the most recent chips. The measuremen...Show More
The RFID (Radio Frequency Identification) technology is evolving strongly with the emergence of cognitive sensor networks and notably the Internet of Things. A significant indicator of this evolution is that the tags are equipped with new capabilities and functions such as more powerful sensors, actuators, etc. This evolution of the RFID requires more energy consumption, and the continued passive ...Show More
Harmonic communication is an option for enhancing tag to reader communication in UHF RFID systems. In this work different voltage multiplier configurations, diodes, operation scenarios and generated harmonics have been evaluated at simulation level in order to suggest voltage multiplier design guides to increase the available harmonic power. The results show that single side topologies with minimu...Show More
A novel dual-band ultrahigh-frequency (UHF) radio frequency identification (RFID) sensor tag, designed to operate on metallic surfaces, is proposed. This particular UHF RFID sensor tag is capable of operating in both the main RFID frequency bands of the European Telecommunications Standards Institute (ETSI) and the Federal Communication Commission (FCC). The dual-band operation of the UHF RFID sen...Show More
A cavity-backed slot antenna based on air-filled substrate integrated waveguide (AFSIW) with the technology of multilayer printed circuit board (PCB) is proposed for the 5th generation (5G) mobile communication system at 28 GHz for the first time. The whole antenna is made of five layers and its size is 10 mm ×9 mm. The top and bottom layers are Rogers RT6002 and the medium layer is based on an ai...Show More
One of the possible ways to increase the end-to-end power transfer efficiency in a radiative Wireless Power Transfer (WPT) system is by transmitting multi-tone signals optimized according to the receiver rectenna's nonlinear behavior and the Channel State Information (CSI). This optimization problem is a non-convex problem that has been tackled in the past with Sequential Convex Programming (SCP) ...Show More
The concept of UHF RFID passive tag-to-tag communication has been introduced and opens new promising perspectives in the field of Internet-of-Things. This concept enables two powerless tags to exchange information using an external source. Moreover, a simulation framework has been proposed as a tool allowing the performance evaluation of tag-to-tag radio links in terms of Bit Error Rate (BER). The...Show More
In this paper, a method to model a passive UHF RFID system is presented and a practical application on PW (Pulse Wave) mode is described. Two levels of simulation are performed. A system level simulation (circuit model) including transmitter, modeled channel and receiver is developed using ANSYS Designer and interfaced with Matlab. And a physical-layer level simulation (electromagnetic model) incl...Show More
The study presents an experimental demonstration of UHF (ultra-high frequency) RFID (radio frequency identification) communication based on pulsed waveforms and time reversal with respect of ISO-18000 Gen2 protocol. The considered communication channel is a rich scattering propagation medium and the RFID tag is a passive commercial tag without any modification. The RFID reader (in emission mode an...Show More
In the context of smart textiles, this paper addresses the evolution of the UHF RFID technology towards novel functionalities such as physical parameters sensing and tag' s integration with the identified object since the fabrication step. More precisely, the first part is dedicated to the presentation of physical parameters sensing such as temperature and humidity starting UHF RFID yarns. The sec...Show More
This letter provides experimental evidence that, in a complex environment, a time-reversal processing of electromagnetic waves can increase the energy efficiency of the reader to tag communication and, hence, can increase the activation range of a passive ultrahigh frequency (UHF) radio frequency identification (RFID) system. A first experiment performed in a free-space environment shows that in a...Show More
The aim of this paper is to present different ways to extract electrical models of an antenna specifically designed for Radio Frequency IDentification (RFID) Ultra High Frequency (UHF) communications. More precisely the models are extracted from a helical dipole designed to operate in the European RFID band and in the context of smart textiles. This kind of antenna was chosen because its electrica...Show More
A new multiband Ultra High Frequency (UHF) Radiofrequency Identification (RFID) sensor tag for industrial applications is proposed. The principle relies on a very simple operation: the effect of flipping the tag itself on a metallic surface for operation either in the European Telecommunications Standards Institute (ETSI) or the Federal Communication Commission (FCC) UHF RFID frequency bands. More...Show More
In this paper, a passive ultra-high frequency (UHF) radio frequency identification (RFID) humidity sensor tag inside a slenderly yarn is presented. The sensor tag antenna is designed within a very small diameter textile wire of less than 0.6 mm. The proposed solution is based on both theoretical analysis and detailed simulation results in coherence with theory. The tag system consists of capacitiv...Show More
The aim of this paper is to develop a framework of a chipless wireless system for sensing in compliance with the standard international regulations. The proposed approach offers a solution to solve the main difficulty met for the deployment of chipless systems that require specific readers (based on non-standardized large frequency bands and specific signal waveforms). The possibility of interroga...Show More
This paper aims to present a further exploration on a new concept regarding the operation of an ultrahigh frequency (UHF) radio frequency identification (RFID) sensor tag. Exploiting the antenna of a UHF RFID tag as a temperature transducer and a UHF RFID chip with self-tuning capabilities as the means of communication, a UHF RFID tag can operate as a very low-power sensor with high read range and...Show More