Results 1 to 10 of about 17,978 (221)

Upper-Bound Electromagnetic Performance of Substrate-Free Epidermal Tattoo Antennas for UHF Applications [PDF]

Sensors
Substrate-free epidermal antennas promise imperceptible and long-term wearable sensing, yet their electromagnetic performance is fundamentally constrained by the properties of ultrathin conductors.
Adina Bianca Barba, Alessio Mostaccio, Rasha Ahmed Hanafy Bayomi, Sunghoon Lee, Gaetano Marrocco, Takao Someya, Cecilia Occhiuzzi   +6 more
doaj   +2 more sources

Ultra-high frequency printable antennas for partial discharge diagnostics in high voltage equipment

Alexandria Engineering Journal, 2023
In this article, we have performed a comprehensive investigation in the specialty of ultra-high frequency (UHF) printable antennas for partial discharge (PD) diagnostics.
S. M. Kayser Azam, Mohamadariff Othman, Hazlee Azil Illias, Tarik Abdul Latef, Mohammad Tariqul Islam, Mohd Fadzil Ain   +5 more
doaj   +1 more source

Transparent Liquid Multiple-Antenna Array with a High Gain and Beam Diversity for UHD TV Applications [PDF]

Journal of Electromagnetic Engineering and Science, 2022
The design of television (TV) antennas for commercial use that operate on the ultra-high frequency (UHF) band has become more challenging given the relatively large size of these antennas and considering that they typically do not conform to ...
Duy Tung Phan, Chang Won Jung
doaj   +1 more source

Design of Bowtie Antenna With Rounded Edge and Middle-Sliced Modifications for UHF Partial Discharge Sensor

IEEE Access, 2023
Partial Discharge (PD) detection using ultra-high frequency (UHF) method has been proven as more noise-resistant in GIS condition monitoring, compared to the conventional PD detection methods, where the common noise frequency range such as in the power ...
Umar Khayam, Asep Andi Suryandi, Rachmawati   +2 more
doaj   +1 more source

“Unconventionally Shaped” Antenna Design for UHF RFID Tags

International Journal of Antennas and Propagation, 2021
UHF RFID tags need to be attached or embedded into various objects. Unlike traditional free-standing antennas, UHF antenna shapes and form factors may vary significantly.
Silong Wang, Yulong Liu, Terry Tao Ye
doaj   +1 more source

Detection, Classification and Location of Sources of Partial Discharges Using the Radiometric Method: Trends, Challenges and Open Issues

IEEE Access, 2021
In this article, it is provided a comprehensive survey on the most relevant research in the area of detection, classification and location of partial discharge (PD) sources using the radiometric or ultra high frequency (UHF) method, focusing mainly on ...
George V. R. Xavier, Hugerles S. Silva, Edson G. da Costa, Alexandre J. R. Serres, Nuno B. Carvalho, Arnaldo S. R. Oliveira   +5 more
doaj   +1 more source

Design of a Wideband Inductively Coupled Loop Feed Patch Antenna for UHF RFID Tag [PDF]

, 2015
A planar wideband patch antenna for ultra-high frequency (UHF) radio frequency identification (RFID) tag for metallic applications is presented in this research work.
Bashri, M. S. R., Ibn Ibrahimy, M., Motakabber, S. M. A.   +2 more
core   +4 more sources

UHF RECTENNA USING A BOWTIE ANTENNA [PDF]

Progress In Electromagnetics Research C, 2012
In this paper, a rectifying antenna (rectenna) for energy scavenging applications is presented. The proposed device uses a modifled bowtie antenna to collect the electromagnetic energy coming from UHF RFID systems, and RF Schottky diodes to convert it into DC power.
Monti G., Congedo F.
openaire   +1 more source

Investigating the Capability of PD-Type Recognition Based on UHF Signals Recorded with Different Antennas Using Supervised Machine Learning

Energies, 2022
The article presents research on the influence of the type of UHF antenna and the type of machine learning algorithm on the effectiveness of classification of partial discharges (PD) occurring in the insulation system of a power transformer.
Daria Wotzka, Wojciech Sikorski, Cyprian Szymczak   +2 more
doaj   +1 more source

Dual-Band RFID Tag Antenna Based on the Hilbert-Curve Fractal for HF and UHF Applications [PDF]

, 2016
A novel single-radiator card-type tag is proposed which is constructed using a series Hilbert-curve loop and matched stub for high frequency (HF)/ultra high frequency (UHF) dual-band radio frequency identification (RFID) positioning applications.
Alibakhshikenari, Mohammad, Limiti, Ernesto, Naser-Moghadasi, Mohammad, Sadeghzadeh, Ramazan Ali, Virdee, Bal Singh   +4 more
core   +1 more source