Results 111 to 120 of about 306,809 (340)
Commercial applications of the ACTS mobile terminal millimeter-wave antennas [PDF]
NASA's Jet Propulsion Laboratory is currently developing the Advanced Communications Technology Satellite (ACTS) Mobile Terminal (AMT), which will provide voice, data, and video communications to and from a vehicle (van, truck, or car) via NASA's ...
Crist, Rick A. +3 more
core +1 more source
Advanced Optical Materials, EarlyView.The impact of decorating the multiresonant thermally activated delayed fluorescence (MR‐TADF) emitter DiKTa with 9,9′‐spirobifluorene units is explored with regard to number, position, and incorporation type. Four novel sky‐blue narrowband MR‐TADF emitters are developed, and in the OLED devices, a structure‐property relationship is observed with ...
Janine Haug +11 more
wiley +1 more source
Market capture by 30/20 GHz satellite systems. Volume 1: Executive summary [PDF]
Demand for 30/20 GHz satellite systems over the next two decades is projected. Topics include a profile of the communications market, switched, dedicated, and packet transmission modes, deferred and real-time traffic, quality and reliability ...
Gamble, R. B., Saporta, L.
core +1 more source
Communication system uses modulated laser beam [PDF]
, 1965 Electro-optical system is placed on a satellite to effect communications between two remote stations.
Minott, P. O.
core +1 more source
Advanced Optical Materials, EarlyView.A simple and efficient method for determining the stability of optical vortices via Fourier transform using a conventional spherical lens is presented. The theoretical and experimental results demonstrate a practical approach to directly and unambiguously measure the magnitude and sign of the topological charge of a beam without altering an ...
Elena Melnikova +5 more
wiley +1 more source
Directional Light Scattering In Mie‐Resonant Si Particles With Ultra‐Thin Au Shells
Advanced Optical Materials, EarlyView.Si@Au core‐shell particles have been produced to study their ability to directionally scatter light. We found that the heavily reported particulate shells do not overlap the electric and magnetic dipoles well, where continuous shells have better overlap. Experimental analyses, including nanomaterial characterization, EELS and single‐particle dark‐field
Emmanuel O. Idowu +12 more
wiley +1 more source
The Law of Satellite Communications: Filling in the Gaps
, 2021 Amir Hossein Mesgari Hagh, Reza Karam
openalex +2 more sources
Conceptual design of a synchronous Mars telecommunications satellite [PDF]
Future missions to Mars will require a communications system to link activities on the Martian surface with each other and with mission controllers on Earth.
Badi, Deborah M. +3 more
core +1 more source
Advanced Optical Materials, EarlyView.A comparative study of the optical and polaritonic properties of excitons in hBN‐encapsulated monolayer TMDs close to the homogeneous linewidth is presented. Reflection spectroscopy with transmission‐line modeling enables extraction of the complex permittivities and demonstrate their ability to host surface‐exciton‐polaritons.
Matan Meshulam +6 more
wiley +1 more source
An Enhanced Multiple Random Access Scheme for Satellite Communications [PDF]
, 2011 Huyen-Chi Bui +2 more
openalex +1 more source