Results 81 to 90 of about 1,766,714 (261)
Recent Advances in Programmable Metasurfaces and Meta‐Devices
Advanced Electronic Materials, EarlyView.Programmable metasurfaces enable various novel functionalities by dynamically tuning electromagnetic wavefronts. This article provides a comprehensive review of recent advances in microwave and terahertz programmable metasurfaces, covering electrical, thermal, optical, and mechanical control mechanisms.
Linda Shao +4 more
wiley +1 more source
The Journal of Engineering, 2016 The design of spectrally-efficient, high-throughput satellite (HTS) systems with capacity approaching one terabit per second requires operating at Ka-band frequencies and above, where there are several gigahertz of allocated radio spectrum, using ...
Abdulkareem Sarki Karasuwa +2 more
doaj +1 more source
Satellite-Enhanced Personal Communications Experiments
, 1995 As an initial step in exploring the opportunities afforded by the merging of satellite and terrestrial networks, Bellcore and JPL conducted several experiments utilizing Bellcore's experimental Personal Communications System, NASA's Advanced ...
Michael Kramer +6 more
core
Next Generation High Throughput Satellite System [PDF]
, 2012 This paper aims at presenting an overview of the state-of-the-art in High Throughput Satellite (HTS) systems for Fixed Satellite Services (FSS) and High Density-FSS.
Vidal, Oriol +11 more
core +1 more source
Advanced Electronic Materials, EarlyView.A lightweight, 3D MXene aerogel framework integrated with bismuth ferrite was developed to efficiently harvest waste heat. By growing the oxide directly onto the porous aerogel, the composite achieves strong interfacial connections. This unique architecture simultaneously boosts electrical power generation and blocks heat flow, resulting in an ...
Oju Kwon +4 more
wiley +1 more source
Access and mobility management technologies for 6G satellite communications network
Dianxin kexue, 2021 Analsisand outlook for satellite communication access and mobility management technology in 6G network was presented.Firstly, the access technology of current global representative satellite mobile communications system was introduced, as well as the ...
Xiaowen WU +5 more
doaj +2 more sources
Scientometric Analysis of Published Scientific Productions in the Field of Satellite Constellations [PDF]
فصلنامه علوم و فناوری فضاییSatellite constellations consist of similar satellites distributed in a specific orbital pattern to accomplish a joint mission. They are commonly used for global telecommunications, positioning, and remote sensing missions.
Hossein Eftekhari +3 more
doaj +1 more source
The FAA satellite communications program [PDF]
, 1993 The Federal Aviation Administration is developing satellite communications capabilities to enhance air traffic services, first in oceanic and remote regions, and later for United States domestic services.
Burcham, Karen L.
core
BSM Integrated PEP with Cross-Layer Improvements [PDF]
, 2009 The future development of broadband satellite systems providing services based on the Internet Protocol (IP) needs to be stimulated by means of common standards. This paper presents the ETSI BSM PEP terminal architecture and PEP usage scenarios.
Berioli M. +15 more
core +1 more source
Holographic Mapping of Orbital Angular Momentum using a Terahertz Diffractive Optical Neural Network
Advanced Intelligent Discovery, EarlyView.A compact six‐layer diffractive optical neural network enables direct recognition and spatial mapping of terahertz (THz) orbital angular momentum (OAM) beams. Fabricated by 3D printing, the system distinguishes nine OAM modes and their superpositions with high fidelity, good efficiency, and low crosstalk, offering a scalable solution for THz ...
Wei Jia +3 more
wiley +1 more source