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High precision epidermal radio frequency antenna via nanofiber network for wireless stretchable multifunction electronics

open access: yesNature Communications, 2020
Designing efficient radio frequency antenna for wireless stretchable multifunction electronics remains a challenge. Here, the authors present epidermal radio frequency antenna based on silver nanofibers network for wireless power transfer and information
Yufei Zhang   +10 more
doaj   +2 more sources

Radio/Antenna Mounting System for Wireless Networking under Row-Crop Agriculture Conditions [PDF]

open access: goldJournal of Sensor and Actuator Networks, 2015
Interest in and deployment of wireless monitoring systems is increasing in many diverse environments, including row-crop agricultural fields. While many studies have been undertaken to evaluate various aspects of wireless monitoring and networking, such ...
Daniel K. Fisher
doaj   +2 more sources

Comprehensive Design and Propagation Study of a Compact Dual Band Antenna for Healthcare Applications [PDF]

open access: yesJournal of Sensor and Actuator Networks, 2015
In this paper, a dual band planar inverted F antenna (PIFA) has been investigated for cooperative on- and off-body communications. Free space and on-body performance parameters like return loss, bandwidth, radiation pattern and efficiency of this antenna
Mohammad Monirujjaman Khan   +2 more
doaj   +4 more sources

Antenna Design and Implementation for the Future Space Ultra-Long Wavelength Radio Telescope [PDF]

open access: green, 2018
In radio astronomy, the Ultra-Long Wavelengths (ULW) regime of longer than 10 m (frequencies below 30 MHz), remains the last virtually unexplored window of the celestial electromagnetic spectrum.
Aminaei, Amin   +6 more
core   +8 more sources

A Bose horn antenna radio telescope (BHARAT) design for 21 cm hydrogen line experiments for radio astronomy teaching [PDF]

open access: yesAmerican Journal of Physics, 2022
We have designed a low-cost radio telescope system named the Bose Horn Antenna Radio Telescope (BHARAT) to detect the 21 cm hydrogen line emission from our Galaxy.
A. A. Mhaske   +4 more
semanticscholar   +1 more source

Study on deployment mechanism of the satellite umbrella antenna

open access: yesHangkong gongcheng jinzhan, 2023
The relaxation and jumping from slot of the power rope of the antenna deployment mechanism are likely to occur in the process of antenna deployment and folding.
LIU Tingting   +3 more
doaj   +1 more source

Limiting Accuracy of Height Measurement for a Precision Radar Altimeter in a Low Altitude Flying Vehicle above the Sea Surface

open access: yesRemote Sensing, 2021
This study presents mathematical analysis and numerical modeling for the estimation of measurement errors of height estimation over the sea surface for a precision radar altimeter installed in a low altitude flying vehicle.
Aleksandr I. Baskakov   +3 more
doaj   +1 more source

Sionna RT: Differentiable Ray Tracing for Radio Propagation Modeling [PDF]

open access: yes2023 IEEE Globecom Workshops (GC Wkshps), 2023
Sionna™ is a GPU-accelerated open-source library for link-level simulations based on TensorFlow. Since release v0.14 it integrates a differentiable ray tracer (RT) for the simulation of radio wave propagation.
J. Hoydis   +6 more
semanticscholar   +1 more source

Sub-terahertz silicon-based on-chip absorption spectroscopy using thin-film model for biological applications

open access: yesScientific Reports, 2022
Spectroscopy in the sub-terahertz (sub-THz) range of frequencies has been utilized to study the picosecond dynamics and interaction of biomolecules. However, widely used free-space THz spectrometers are typically limited in their functionality due to low
Seyed Ali Hosseini Farahabadi   +5 more
doaj   +1 more source

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