Results 121 to 130 of about 306,809 (340)

Hybrid IRS-Assisted Secure Satellite-Terrestrial Communications: A Fast Deep Reinforcement Learning Approach [PDF]

, 2022
Quynh Tu Ngo, Tran Khoa Phan, Nasir Mahmood, Wei Xiang   +3 more
openalex   +1 more source

Bi–Sb Co‐Alloying Tunes Photoexcited State Dynamics in (4FPEA)4AgBi1−xSbxI8 Layered Double Perovskites through Structural Confinement

Advanced Optical Materials, EarlyView.
Lead‐free double perovskites are emerging alternatives to lead‐halide analogues, leveraging low toxicity and highly tunable chemical compositions. These materials possess unique carrier dynamics, often governed by self‐trapped exciton (STE)‐mediated recombination.
Joshua K. G. Karlsson, Sami Toikkonen, Noolu Srinivasa Manikanta Viswanath, Alejandro Cortés‐Villena, Raquel E. Galian, Noora Lamminen, G. Krishnamurthy Grandhi, Paola Vivo   +7 more
wiley   +1 more source

Optimizing a Formation-of-Arrays (FoA) Satellite Antenna System for Very High-Throughput Communications [PDF]

Giacomo Bacci, Riccardo De Gaudenzi, Marco Luise, Elena Sebastiani, Piero Angeletti, José Ramón Perán González   +5 more
openalex   +1 more source

Satellite and aircraft communications through SDR as an introduction to Telecommunications and Electrical Engineering

, 2020
Gonzalo Belcredi, Martin Randall, Claudina Rattaro, Pablo Belzarena   +3 more
openalex   +2 more sources

Scenarios and performance measures for advanced ISDN satellite design and experiments [PDF]

Described here are the contemplated input and expected output for the Interim Service Integrated Services Digital Network (ISDN) Satellite (ISIS) and Full Service ISDN Satellite (FSIS) Models.
Pepin, Gerard R.
core   +1 more source

Phase Smoothing for Mutual Coupling Mitigation in Multifunctional Metasurfaces Designed with Diffractive Neural Networks

Advanced Optical Materials, EarlyView.
A diffractive neural networkdesigned metasurface operating at 86 GHz generates multiple holographic patterns by controlling the phase of subwavelength unit cells. A phase‐smoothing regularization mitigates mutual coupling, enabling accurate multifunctional wavefront shaping.
Damián Rodríguez‐Trujillo, Alicia E. Torres‐García, Mikel Aldea, Jorge Teniente, Asier Marzo‐Pérez, Miguel Beruete   +5 more
wiley   +1 more source

Uplink application circuit for satellite communications

, 2022
Mehmet Duman
openalex   +2 more sources

Antennas for mobile satellite communications [PDF]

A NASA sponsored program, called the Mobile Satellite (MSAT) system, has prompted the development of several innovative antennas at L-band frequencies. In the space segment of the MSAT system, an efficient, light weight, circularly polarized microstrip ...
Huang, John
core   +1 more source

0D Cesium Lanthanide Chlorides: Spectroscopic Insights and Optical Properties for Emerging Optoelectronic Applications

Advanced Optical Materials, EarlyView.
Trivalent lanthanides or rare earth elements are positioning themselves as “critical and strategic minerals” due to their significance in securing technological supremacy in the modern world. At present, a huge demand of rare earth elements in numerous sectors is witnessed, such as optoelectronics, telecommunications, military systems, renewable energy,
Sheikh Jobe, Lamia Ali Siddig, Adel Najar, Na'il Saleh, Abbas Khaleel, Fathy M Hassan   +5 more
wiley   +1 more source

SDN/NFV-enabled satellite communications networks: Opportunities, scenarios and challenges

, 2015
R. Ferrús, Harilaos Koumaras, O. Sallent, George Agapiou, Tinku Rasheed, Michail‐Alexandros Kourtis, Christelle Boustie, Patrick Gélard, Toufik Ahmed   +8 more
openalex   +2 more sources