Results 61 to 70 of about 915 (151)

Analyzing the Relationship Between UHF Partial Discharge Signal Features and Transferred Charge [PDF]

AUT Journal of Electrical Engineering
The ultra-high frequency (UHF) technique offers significant advantages over the conventional partial discharge (PD) measurement method, particularly for online monitoring, 3D localization, and immunity against noise.
vahid javandel, Asghar Akbari Azirani, Mohammad Ardebili, Peter Werle   +3 more
doaj   +1 more source

A Study on a Miniaturized Planar Spiral Antenna for Partial Discharge Detection in GIS

MATEC Web of Conferences, 2015
Ultra-high frequency (UHF) detection method can effectively detect the signals of partial discharge (PD) in electrical equipment. Hence the authors designed a sensor of miniaturized planar spiral antenna for detecting PD in gas insulated substations ...
Wang Yongqiang, Li Jianfang, Li Changyuan, Ouyang Baolong, Zheng Zhihong   +4 more
doaj   +1 more source

Curved-Pentagonal Planar Monopole Antenna for UHF Television Broadcast Receiving Antenna

Journal of Telecommunications and Information Technology, 2016
A planar monopole antenna is an aerial, which the radiating element is perpendicular to the ground plane. It has five equal curvy sides and works at Ultra High Frequency (UHF) band of terrestrial broadcast 478–806 MHz.
Rudy Yuwono, Endah Budi Purnomowati, Mohamad Yasir Amri   +2 more
doaj   +1 more source

A High-Gain Passive UHF-RFID Tag with Increased Read Range

Sensors, 2016
In this work, a passive ultra-high frequency radio-frequency identification UHF-RFID tag based on a 1.25 wavelengths thin dipole antenna is presented for the first time. The length of the antenna is properly chosen in order to maximize the tag read range,
Simone Zuffanelli, Pau Aguila, Gerard Zamora, Ferran Paredes, Ferran Martin, Jordi Bonache   +5 more
doaj   +1 more source

A comprehensive review of noise-cancellation antenna sensors in ultra-high frequency: techniques, challenges, and future directions

Engineering Science and Technology, an International Journal
This paper provides a comprehensive review of ultra-high frequency (UHF) noise-cancellation antenna (NCA) sensors. It identifies the critical challenges posed by noise interference in UHF bands and their impact on signal quality, particularly in partial ...
Zongxing Wei, Mohamadariff Othman, Tarik Abdul Latef, Hazlee Azil Illias, S. M. Kayser Azam, Tengku Faiz Tengku Mohmed Noor Izam, Muhammad Ubaid Ullah, Mohamed Alkhatib, Mousa I. Hussein   +8 more
doaj   +1 more source

Conformal and Flexible Antennas in Ultra-High Frequencies: Prospects and Challenges for Partial Discharge Diagnostics

IEEE Access
With the exponential increase in smart device usage across various domains, flexible and conformal antenna technologies have emerged as transformative solutions, enabling wireless systems in numerous smart applications.
M. A. Taher, Mohamadariff Othman, Hazlee Azil Illias, Tarik Abdul Latef, Tengku Faiz Tengku Mohmed Noor Izam, S. M. Kayser Azam, Muhammad Ubaid Ullah, Mohamed Alkhatib, Mousa I. Hussein   +8 more
doaj   +1 more source

Broadband Compact Quasi Yagi Antenna for UHF Wireless Communication Systems with Enhanced Performance at UHF ISM Bands [PDF]

Radioengineering, 2020
In this study, a broadband planar quasi Yagi antenna operated at ultra-high frequency (UHF) band is presented. The performance of the antenna is particularly improved for two popular UHF frequencies of 433 and 868 MHz used in several wireless ...
Y. Bakirli, A. Selek, M. Secmen
doaj  

The wireless energy transfer (WET) using ultra high frequency (UHF) for human body implant recharging

E3S Web of Conferences, 2018
The wireless energy transfer (wet) is widely used in many fields. In particularly for medical, this technique can be implemented to an electronic human body implant recharging.
Rinanda Saputri Fahmy, Sunarno, Motivanisman Waruwu Memory, Wijaya Rony   +3 more
doaj   +1 more source

Identification of surgical instruments using UHF-RFID technology

Current Directions in Biomedical Engineering, 2015
The paper presents research, development and advantage of Radio Frequency IDentification (RFID) technology based system for medical instrument management and safe usage. The system is developed for two scenarios.
Bourouah Mohamed, Goridko Vadim, Schumacher Dietmar, Scheithauer Hermann, Knappmann Stephan, Nommensen Peter   +5 more
doaj   +1 more source