Results 41 to 50 of about 58,270 (278)

A New Configuration Diplexer for RF Harvesting Applications [PDF]

EPJ Web of Conferences
This paper presents an advanced microstrip diplexer specifically engineered for radio frequency (RF) energy harvesting. As key elements in multi-band harvesting setups, diplexers allow for the concurrent capture and conversion of ambient RF power across ...
Bakkali Ahmed, Zbitou Jamal, El Gibari Mohammed, Oukaira Aziz, Samira Khoulji   +4 more
doaj   +1 more source

RF power saving system for smart homes

Heliyon
In this work the investigation results of harvesting the RF energy of a 2.4 GHz Wi-Fi signal for supply of smart home leak sensors network are presented. The collected RF energy has been used as an additional source to power the sensors. The main goal of
Martynas Sapurov, Algirdas Baskys, Kazimieras Slivka, Vytautas Bleizgys, Karolis Stasys, Rimantas Simniskis, Valerijus Zlosnikas, Kęstutis Urbonas, Aldas Dervinis, Sarunas Paulikas, Nerijus Paulauskas, Raimondas Pomarnacki, Darius Gursnys, Leslav Mazeiko, Violeta Cymliakova, Pavel Piatrou, Justas Dilys   +16 more
doaj   +1 more source

Energy-Efficient Antenna Selection and Power Allocation for Large-Scale Multiple Antenna Systems with Hybrid Energy Supply [PDF]

, 2014
The combination of energy harvesting and large-scale multiple antenna technologies provides a promising solution for improving the energy efficiency (EE) by exploiting renewable energy sources and reducing the transmission power per user and per antenna.
Gong, Jie, Niu, Zhisheng, Zhou, Sheng, Zhou, Zhenyu   +3 more
core   +1 more source

Design and investigation of small-scale long-distance RF energy harvesting system for wireless charging using CNN, LSTM, and reinforcement learning

Frontiers in Physics
Introduction: The energy supply challenge in wireless charging applications is currently a significant research problem. To address this issue, this study introduces a novel small-scale long-distance radio frequency (RF) energy harvesting system that ...
Hao Zhang, Yue Wang, Hyeong Kwang Benno Park, Tae Hyun Sung   +3 more
doaj   +1 more source

Radio Frequency Energy Harvesting Technologies: A Comprehensive Review on Designing, Methodologies, and Potential Applications

Sensors, 2022
Radio frequency energy harvesting (RF-EH) is a potential technology via the generation of electromagnetic waves. This advanced technology offers the supply of wireless power that is applicable for battery-free devices, which makes it a prospective ...
Husam Hamid Ibrahim, Mandeep Jit Singh, Samir Salem Al-Bawri, Sura Khalil Ibrahim, Mohammad Tariqul Islam, Ahmed Alzamil, Md Shabiul Islam   +6 more
doaj   +1 more source

In Situ Amidation‐Derived Interfacial Modulation for Homogeneous Ultra‐High Nanoparticle Loading Toward Robust and Flexible Piezoelectric Composites

Advanced Functional Materials, EarlyView.
Synergistic interfacial strategy between inorganic ceramic fillers and polymer chains effectively inhibit particle aggregation and interfacial incompatibility. complex covalent and non‐covalent interfacial interactions promote superior uniformity, ultra‐high ceramic filler loading, and strong grain‐to‐grain connectivity, thereby enabling the ...
HakSu Jang, In Beom Heo, Changyeon Baek, Dong Won Jeon, Donghun Lee, Nagamalleswara Rao Alluri, Hyejeong Choi, HyoMin Jeon, SungHoon Kim, Hyunseung Kim, Jihun Choi, Hyun‐Soo Chang, Chang Kyu Jeong, Min‐Ku Lee, Jun Mo Koo, Tiandong Zhang, Geon‐Tae Hwang, Sung Beom Cho, Gyoung‐Ja Lee, Hyeong Min Jin, Kwi‐Il Park   +20 more
wiley   +1 more source

Trading Wireless Information and Power Transfer: Relay Selection to Minimize the Outage Probability

, 2014
This paper studies the outage probability minimization problem for a multiple relay network with energy harvesting constraints. The relays are hybrid nodes used for simultaneous wireless information and power transfer from the source radio frequency (RF)
Butt, M. Majid, Guizani, Mohsen, Mohamed, Amr, Nasir, Adnan   +3 more
core   +1 more source

Ambient RF Energy Harvesting

RE&PQJ
In this paper, we present a study of ambient RF energy harvesting techniques. The measurement of the ambient RF power density is presented. The average of the density in broadband (1GHz- 3.5GHz) is in the order of -12dBm/m² (63µW/m²). Two systems have been studied to recover the RF energy.
null D. BOUCHOUICHA, null F. DUPONT, null M. LATRACH, null L.VENTURA   +3 more
openaire   +1 more source

In Situ 3D Bioprinting: Impact of Cross‐Linking on the Adhesive Properties of Hydrogels

Advanced Functional Materials, EarlyView.
In situ 3D bioprinting enables the direct deposition of cell‐laden, adhesive biomaterials for on‐site tissue regeneration. This review provides a comprehensive overview of how cross‐linking influences the bioadhesive properties of hydrogels used in 3D bioprinting, highlighting cross‐linking triggers, bioadhesion mechanisms, polymer interpenetration ...
Odile Romero Fernandez, Mulazim Hussain Asim, Shumaila Arshad, Gergely Kali, Andreas Bernkop‐Schnürch   +4 more
wiley   +1 more source

Availability of Ambient RF Energy in d-Dimensional Wireless Networks

Energies, 2018
Radio frequency (RF) enabled energy harvesting has garnered increasingly broad applications in energy-constrained wireless networks. In this context, the actual available energy is constrained by the harvesting threshold of RF harvesters.
Hongxing Xia, Yongzhao Li, Hailin Zhang, Balasubramaniam Natarajan   +3 more
doaj   +1 more source