Results 91 to 100 of about 15,327 (214)

Experiments Validating the Effectiveness of Multi-point Wireless Energy Transmission with Carrier Shift Diversity [PDF]

, 2014
This paper presents a method to seamlessly extend the coverage of energy supply field for wireless sensor networks in order to free sensors from wires and batteries, where the multi-point scheme is employed to overcome path-loss attenuation, while the ...
Araki, Kiyomichi, Furukawa, Minoru, Maehara, Daiki, Sakaguchi, Kei, Tran, Gia Khanh   +4 more
core   +1 more source

Dielectric‐Doped 2D Tellurium Diodes for Zero‐Bias Radio Frequency Power Detection

Advanced Electronic Materials, Volume 10, Issue 11, November 2024.
This work presents a 2D Tellurium (Te)‐based radio frequency (RF) diode that exploits a dielectric doping technique to enhance its performance as a power detector. The atomic layer deposited Al2O3 is used to n‐type dope the Te flake to engineer the rectifying Schottky contact.
Paula Palacios, Abdelrahman M. Askar, Francisco Pasadas, Mohamed Saeed, Enrique G. Marin, Michael M. Adachi, Renato Negra   +6 more
wiley   +1 more source

ISO/EPC Addressing Methods to Support Supply Chain in the Internet of Things

, 2018
RFID systems are among the major infrastructures of the Internet of Things, which follow ISO and EPC standards. In addition, ISO standard constitutes the main layers of supply chain, and many RFID systems benefit from ISO standard for different purposes.
Imani, Mehdi, Moghadam, Abolfazl Qiyasi
core   +1 more source

RF-powered UHF-RFID analog sensors platform [PDF]

, 2015
An RF powered UHF-RFID passive sensors platform was realized using discrete components and printed antennas designed to resonate at 868 MHz, used both for energy harvesting and data transmission.
Della Corte, Francesco G., Felini, Corrado, Iero, Demetrio, Merenda, Massimo, Minarini, Carla, RUBINO, Alfredo   +5 more
core   +1 more source

Degradable and Printed Microstrip Line for Chipless Temperature and Humidity Sensing

Advanced Electronic Materials, Volume 10, Issue 11, November 2024.
This study presents a biodegradable printed microstrip line with multi‐resonance for temperature and relative humidity monitoring. Zinc printed on paper encapsulated with beeswax serves as the radio‐frequency transducer. Two resonators at 1.2 and 2 GHz are used to sense temperature and humidity, respectively.
James Bourely, Jaemin Kim, Christian Beyer, Oleksandr Vorobyov, Xavier Aeby, Gustav Nyström, Danick Briand   +6 more
wiley   +1 more source

Concurrent Backscatter Streaming from Batteryless and Wireless Sensor Tags with Multiple Subcarrier Multiple Access [PDF]

, 2017
This paper proposes a novel multiple access method that enables concurrent sensor data streaming from multiple batteryless, wireless sensor tags. The access method is a pseudo-FDMA scheme based on the subcarrier backscatter communication principle, which
Haruhisa ICHIKAWA, Jin MITSUGI, Nitish RAJORIA, Yuki IGARASHI, Yuusuke KAWAKITA   +4 more
core   +2 more sources

A Flexible UHF RFID Respiratory Sensor

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
Abstract In this study, we developed a Radio Frequency Identification (RFID) sensor to monitor respiratory rates. The sensor utilizes a passive RFID tag enhanced with a metamaterial-inspired structure to boost its maximum gain value. This gain increased from -0.39 dBi to 0.57 dBi. Monitoring of the respiratory rate was conducted by analyzing variations
Jéssyca I. L. Araujo, Georgina K. F. Serres, Simone Genovesi, Danilo F. S. Santos, Alexandre J. R. Serres   +4 more
openaire   +2 more sources

Tracking Small Animals in Complex Landscapes: A Comparison of Localisation Workflows for Automated Radio Telemetry Systems

Ecology and Evolution, Volume 14, Issue 10, October 2024.
Automated radio telemetry grids provide the possibility of studying movement of small animals at very fine spatial scales, but the influence of rugged terrains and vegetation on localisation error curtails the applicability of this technology. In this study, we present a comparative workflow to reduce error and show how selecting higher radio signal ...
Cristina Rueda‐Uribe, Alyssa J. Sargent, María Ángela Echeverry‐Galvis, Pedro A. Camargo‐Martínez, Isabella Capellini, Lesley T. Lancaster, Alejandro Rico‐Guevara, Justin M. J. Travis   +7 more
wiley   +1 more source

Polydimethylsiloxane Substrates for passive UHFRFID Sensors [PDF]

, 2014
PDMS has previously shown to be a suitable substrate for UHF-RFID strain sensor tags due to their elastomer characteristics. However, PDMS has further properties such as polymer swelling which could be utilized in gas sensing.
Batchelor, John C., Holder, Simon J., Rakibet, Osman Özgür, Rumens, C.V.   +3 more
core  

RFID Antenna for UHF Band [PDF]

Carpathian Journal of Electronic and Computer Engineering, 2019
Abstract This paper presents a method to increase the detection range for RFID readers in the UHF radio band. The design is following especially the ISO 18000-6C standardization demands for the UHF band, operating from 865 to 868 MHz in Europe and from 902 to 928 MHz in North America.
openaire   +1 more source