Results 101 to 110 of about 10,417 (299)

Multiple antenna systems for ambient RF energy harvesting [PDF]

, 2017
Ambient RF energy harvesting is a potential technique for alleviating the need for battery replacement or recharging in applications such as the Internet-of-Things (IoT).
Shen, Shanpu
core  

Broadband Omnidirectional Rectenna with Integrated Solar Cell for Hybrid Energy Harvesting

Energies
This paper presents a broadband omnidirectional rectenna combined with a solar cell for hybrid energy harvesting, addressing the daytime-only limitation of solar cells via complementary RF energy harvesting.
Fei Cheng, Bu-Yun Cheng, Han-Ping Li, Wang Ni   +3 more
doaj   +1 more source

Small-Area Radiofrequency-Energy-Harvesting Integrated Circuits for Powering Wireless Sensor Networks

Sensors, 2019
This study presents a radiofrequency (RF)-energy-harvesting integrated circuit (IC) for powering wireless sensor networks with a wireless transmitter with an industrial, scientific, and medical (ISM) of 915 MHz.
Guo-Ming Sung, Chao-Kong Chung, Yu-Jen Lai, Jin-Yu Syu   +3 more
doaj   +1 more source

Integrated Ultrasonic Platform for Bioelectronic Control through Biological Barriers Based on Metasurface

Advanced Science, EarlyView.
A metasurface‐enabled ultrasonic platform achieves precise multi‐focal control through biological barriers, real‐time physiology‐driven modulation, and simultaneous wireless power and data transmission. By unifying wavefront engineering, closed‐loop feedback, and acoustic communication, this work establishes key enabling technologies toward scalable ...
Chuanxin Zhang, Hanjie Xiao, Xue Jiang, Dean Ta   +3 more
wiley   +1 more source

A 71GHz RF energy harvesting tag with 8% efficiency for wireless temperature sensors in 65nm CMOS [PDF]

, 2013
This paper presents the first monolithically integrated RF-power harvesting 71 GHz wireless temperature sensor node in 65nm CMOS technology, containing a monopole antenna, a 71 GHz RF power harvesting unit with storage capacitor array, an End-of-Burst ...
Johannsen, U Ulf, Milosevic, D Dusan, Baltus, P.G.M., Peter Baltus, Marion K. Matters-Kammerer, Pieter Harpe, Roermund, AHM Arthur van, Dusan Milosevic, Arthur van Roermund, Matters - Kammerer, M., Johannsen, U.; id_orcid, Harpe, PJA Pieter, Matters-Kammerer, M Marion, Gao, H Hao, Ulf Johannsen, Hao Gao, Harpe, P.J.A., Milosevic, D., Baltus, PGM Peter, Baltus, P.G.M.; id_orcid, Gao, H., Roermund, van, A.H.M., Johannsen, U.   +22 more
core   +1 more source

Advancements and Challenges in Antenna Design and Rectifying Circuits for Radio Frequency Energy Harvesting

Sensors
The proliferation of smart devices increases the demand for energy-efficient, battery-free technologies essential for sustaining IoT devices in Industry 4.0 and 5G networks, which require zero maintenance and sustainable operation.
Martins Odiamenhi, Haleh Jahanbakhsh Basherlou, Chan Hwang See, Naser Ojaroudi Parchin, Keng Goh, Hongnian Yu   +5 more
doaj   +1 more source

Mechanically Adaptive Polyimide Interfaces for Stable High‐Voltage NCM–Sulfide All‐Solid‐State Batteries

Advanced Science, EarlyView.
A mechanically adaptive polyimide interface dynamically stabilizes single‐crystal cathodes in sulfide all‐solid‐state batteries. By integrating robust chemical coordination with viscoelastic compliance, this smart coating suppresses parasitic reactions and accommodates cyclic volume expansion.
Jiatao Wu, Wenjin Li, Rui Wang, Peng Wang, Kaiyuan Deng, Chengshuai Chang, Chuan Xie, Lei Yao, Guangliang Gary Liu   +8 more
wiley   +1 more source

Why Use RF Energy Harvesting in Smart Grids [PDF]

, 2018
Smart Grid is a promising new paradigm for the next generation power grid that aims at a more efficient generation, transformation, distribution and consumption of electricity and at the integration of the new renewable energies in the equation.
Cru, F.M.; Mole, A.E.; Castill, E.; Becherer, M.; Rivadeneyra-Torres, A.; Morale, D.P.
core   +1 more source

Design of Multi-Sourced MIMO Multiband Hybrid Wireless RF-Perovskite Photovoltaic Energy Harvesting Subsystems for IoTs Applications in Smart Cities

Technologies
Energy harvesting technology allows Internet of Things (IoT) devices to be powered continuously without needing battery charging or replacement. In addressing existing and emerging massive IoT energy supply challenges, this paper presents the design of ...
Fanuel Elias, Sunday Ekpo, Stephen Alabi, Mfonobong Uko, Sunday Enahoro, Muhammad Ijaz, Helen Ji, Rahul Unnikrishnan, Nurudeen Olasunkanmi   +8 more
doaj   +1 more source

Targeting PLD3 Reverses the Immunosuppressive Niche by Reprogramming Tumor‐Associated Macrophages and Potentiates Antitumor Immunity

Advanced Science, EarlyView.
PLD3 activates the lysosomal‐AKT‐NF‐κB axis to drive cellular senescence in macrophages, establishing an immunosuppressive TME by limiting the infiltration of cytotoxic T, NK, and NKT cells, which confers resistance to anti‐PD‐1 therapy. Abrine inhibits PLD3 expression, restoring antitumor immunity and synergizing with anti‐PD‐1 treatment.
Xingtu Qin, Qiong Li, Xuemei Xu, Yuhan Wu, Yin Zhu, Jieqiong Wu, Yuan Fang, Qiubei Chen, Shuyang Wang, Jiang Yu, Yaping Ye, Hongli Jiao   +11 more
wiley   +1 more source