Results 251 to 260 of about 55,363 (283)

Radio frequency energy harvesting in wireless sensor networks

Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly, 2009
As a vital factor affecting system cost and lifetime, energy consumption in wireless sensor networks (WSNs) has been paid much attention to. This article presents a new approach to making use of electromagnetic energy from useless radio frequency (RF) signals transmitted in WSNs, with a quantitative analysis showing its feasibility.
Lizzie Tang, Chris Guy
openaire   +1 more source

Radio‐frequency energy harvesting potential: a stochastic analysis

Transactions on Emerging Telecommunications Technologies, 2013
ABSTRACTThis paper considers the energy harvesting potential from ambient electromagnetic waves in the radio frequency (RF) communications spectrum. Because of chaotic positioning nature of cells, handsets and hotspots, the analysis employs stochastic geometry theory to derive the mean and probability distribution of the received RF radiation energy ...
Weisi Guo, Siyi Wang
openaire   +1 more source

Circular Waveguide Array for Radio Frequency Energy Harvesting

2018 12th International Conference on Telecommunication Systems, Services, and Applications (TSSA), 2018
In this paper, a circular waveguide array for radio frequency (RF) energy harvesting application is presented. The proposed array which consists of 2×2 circular waveguide antennas working at the TM 01 resonant mode is intended to operate at the frequency of 1800 MHz available for harvesting the energy of Global System for Mobile communication (GSM ...
Muhammad Panji Kusuma Praja, Mohammad Sigit Arifianto, Achmad Munir   +2 more
openaire   +1 more source

Rectifier analysis for Radio Frequency energy harvesting and Power Transport

2012 42nd European Microwave Conference, 2012
Wireless Power Transmission (WPT) is an attractive powering method for wireless sensor nodes, battery-less sensors, and Radio-Frequency Identification (RFID) tags. The key element on the receiving side of a WPT system is the rectifying antenna (rectenna) which captures the electromagnetic power and converts it to the electric power.
Keyrouz, S., Visser, H.J., Tijhuis, A.G.
openaire   +2 more sources

Broadband Rectifiers for Radio Frequency Energy Harvesting

2023 2nd International Conference on Multidisciplinary Engineering and Applied Science (ICMEAS), 2023
Aminu Muhammad Abba, Tologon Karataev, Omotayo Oshiga, Oghodara Oghenewvogaga   +3 more
openaire   +1 more source

Development of a Radio Frequency Rectifier Circuit for Radio Frequency Energy Harvesting

The aim of this work is to develop a radio frequency rectifier circuit for radio frequency energy harvesting that can produce voltage from ambient radio frequency (RF) signal to energize low powered sensor devices or Internet of Things networks. The radio frequency rectifier was first designed and simulated in Proteus CAD software environment in other ...
Idubor, S.O., Ogbeide, K.O., Okosun, O.
openaire   +1 more source

A Power-efficient Radio Frequency Energy-harvesting Circuit

2013
This work aims to demonstrate the design and simulation of a Radio Frequency (RF) energy-harvesting circuit, from receiving antenna to the point of charge collection. The circuit employs a custom-designed antenna based around Koch fractal loops, selected for their small physical size, good multiband behaviour and ease of size scalability, as well as a ...
openaire   +2 more sources

Energy-Efficient Wireless Transceivers Powered by Radio Frequency Energy Harvesting

2021
RF energy harvesting, the process of scavenging energy from ambient electromagnetic waves, is becoming a feasible option for powering low-power electronic devices such as Internet of Things (IoT) devices, biomedical implants, and harsh environment sensors in which traditional wiring solutions or using batteries is costly or infeasible.
openaire   +1 more source

Multi-band simultaneous radio frequency energy harvesting

2013
This paper presents a multi-band simultaneous RF energy harvesting system. The input impedance and the output voltage of a voltage multiplier are investigated. The maximum number of cascaded rectifying stages are identified for three different operating frequencies, 900 MHz, 1800 MHz and 2.45 GHz. The harvesting system combines the DC output voltage of
Keyrouz, S., Visser, H.J.
openaire   +1 more source

Energy Harvesting by Scavenging Ambient Radio Frequency Signals

2022 First International Conference on Electrical, Electronics, Information and Communication Technologies (ICEEICT), 2022
T C Balachandra, Shreeram V Kulkarni, H D Kattimani   +2 more
openaire   +1 more source