Results 21 to 30 of about 915 (151)

Antena Kupu - Kupu Sebagai Sensor Ultra High Frequency (UHF) Untuk Mendeteksi Partial Discharge Pada Gas Insulation Substation

open access: yesJurnal Nasional Teknik Elektro, 2013
The use of antennas as receiving electromagnetic waves can be used as a tool for the detection of partial discharge (PD) that occurs in high voltage equipment. Especially in the insulation gas substation (GIS), the characteristics of the electromagnetic
Hanalde Andre, Umar Khayam
doaj   +1 more source

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

open access: yesAlexandria 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   +5 more
doaj   +1 more source

A Compact Dual-Band RFID Tag Antenna Mountable on Metallic Objects

open access: yesInternational Journal of Antennas and Propagation, 2015
A compact (50 × 50 × 4 mm3) dual-band radio frequency identification (RFID) tag antenna mountable on metallic objects is proposed for the ultra-high frequency (UHF) band (917∼923.5 MHz) and the microwave (MW) band (2.4∼2.45 GHz).
Byeonggwi Mun   +4 more
doaj   +1 more source

IoT-Linked Integrated NFC and Dual Band UHF/2.45 GHz RFID Reader Antenna Scheme

open access: yesIEEE Access, 2019
This research proposes a system board of integrated antenna scheme of near-field communication (NFC) and dual band ultra-high frequency (UHF, 920-925 MHz)/2.45 GHz radio frequency identification (RFID) reader antennas for Internet of Things (IoT ...
Adisak Romputtal   +1 more
doaj   +1 more source

Partial Discharge Wideband Full-Band High-Gain Resonant Cavity UHF Sensor Research

open access: yesSensors, 2023
To meet the real demand for broadband full-band high-gain antenna sensors in the process of partial discharge (PD) Ultra-High frequency (UHF) detection test and online monitoring of power equipment, this paper builds a resonant cavity monopole UHF ...
Chengqiang Liao   +4 more
doaj   +1 more source

Miniaturized Folded-Slot CubeSat MIMO Antenna Design with Pattern Diversity

open access: yesSensors, 2022
In this paper, a folded slot-based multiple-input–multiple-output (MIMO) antenna design for Cube Satellite (CubeSat) applications is presented for the ultra-high frequency (UHF) band.
Rifaqat Hussain   +8 more
doaj   +1 more source

Resonant Frequency Calculation and Optimal Design of Peano Fractal Antenna for Partial Discharge Detection

open access: yesInternational Journal of Antennas and Propagation, 2012
Ultra-high-frequency (UHF) approaches have caught increasing attention recently and have been considered as a promising technology for online monitoring partial discharge (PD) signals.
Jian Li   +3 more
doaj   +1 more source

The effect of soil and label attachment on the performance of RFID tags

open access: yesDianzi Jishu Yingyong, 2019
The application of ultra high frequency radio frequency identification(UHF RFID) in soil sample management can greatly improve the management information level.
Li Da   +4 more
doaj   +1 more source

Spectrum-Aware Compact Reconfigurable UHF Antenna for Interweave Cognitive Radio

open access: yesIEEE Open Journal of Antennas and Propagation, 2023
This paper presents a compact ultra-high frequency (UHF) folded antenna design that relies on a single radio frequency micro-electro-mechanical switch (RF-MEMS) to reconfigure its frequency of operation between 575 MHz and 760 MHz.
F. A. Asadallah   +6 more
doaj   +1 more source

3D Printed Long-Range Cavity Structure UHF RFID Tag Antenna with Painting Conductive Ink on Convex Surface

open access: yesSensors, 2021
In this paper, we describe a long-range convex cavity-type passive ultra-high-frequency (UHF) radio frequency identification (RFID) tag to use on various metal and non-metal surfaces, for IoT sensor energy harvesting.
Franck Kimetya Byondi, Youchung Chung
doaj   +1 more source

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