Results 81 to 90 of about 14,989 (194)

Optical Phased Arrays on Photonic Integrated Circuit Platforms: Challenges, Opportunities, and Future Applications

Nanophotonics, Volume 15, Issue 14, 27 July 2026.
Integrated optical phased arrays are emerging as scalable engines for solid‐state beam steering and programmable wavefront control. This Review maps the field from beam‐steering principles and core building blocks to material platforms, system‐level bottlenecks, and application frontiers, highlighting how heterogeneous integration, aperiodic ...
Jingwei Li, Yuyuan Han, Aoxiang Chen, Pengpeng Li, Xinglin Zhu, Guanbao Zhao, Luohan Peng, Huaibin Zheng   +7 more
wiley   +1 more source

Space‐Time‐Coding Metasurfaces Enabling Programmable Range‐Angle‐Dependent Energy Auto‐Scanning

Nanophotonics, Volume 15, Issue 14, 27 July 2026.
This paper presents a novel energy auto‐scanning system based on a space‐time‐coding metasurface. By applying progressive time‐delayed, time‐varying phase modulation, the system generates non‐uniform, temporally evolving electromagnetic field distributions across both angle and range.
Yuzhen Chen, Xiaoyi Wang, Guo‐Min Yang, Ya‐Qiu Jin   +3 more
wiley   +1 more source

Ultra‐Low Loss Weakly Coupled Few‐Mode Hollow‐Core Anti‐Resonant Fiber Enabling Eight Channels via Differential Wall Thickness and Truncated Tubes

Nanophotonics, Volume 15, Issue 13, 13 July 2026.
A novel ultra‐low loss, weakly coupled few‐mode hollow‐core anti‐resonant fiber is realized through truncated tubes and differential wall thickness, which can support eight spatial modes as independent channels. The effective refractive index difference between adjacent modes is greater than 1.0 × 10−4, and the intrinsic loss of all target modes at ...
Biao Wang, Qiang Shi, Xin Wang, Shuqin Lou, Zhenggang Lian   +4 more
wiley   +1 more source

Sistemas MIMO con un elevado número de antenas: clave para la 5G inalámbrica

Entramado, 2015
La demanda de altas velocidades y capacidades en comunicación inalámbrica de datos, con tráfico creciente de servicios como el video de alta definición, las videollamadas y la sincronización de fotos y videos del móvil, plantea un reto que se entiende ...
Guefry Leider Agredo-Méndez, Pablo Emilio Jojoa-Gómez, Vicenç Almenar-Terré   +2 more
doaj  

Caronte, Hermes y Alejandro: un mimo bizantino anónimo

Circe de Clásicos y Modernos, 2023
Se edita, traduce, anota y comenta un texto conservado en el Ms. Ambrosianus Graecus 855 y se propone que se trata de un mimo breve, representable en ámbito reducido, con intención satírica y que su autoría podría ser adjudicada a Teodoro Pródromos.
Pablo Adrián Cavallero
doaj  

AMPLIAÇÃO DO CALENDÁRIO DE SEMEADURA DA SOJA NO RIO GRANDE DO SUL PELO USO DE CULTIVARES ADAPTADOS AOS DISTINTOS AMBIENTES

Pesquisa Agropecuária Gaúcha, 2000
A época de semeadura é, provavelmente, a prática cultural isoladamente mais importante para a soja [Glycine max (L.) Merrill]. A melhor época de semeadura para esta oleaginosa depende, principalmente, da temperatura do solo para a germinação e emergência,
Mimo ANTONIO BARN, RONALDO MATZENAUER
doaj  

A compact triple wideband mimo antenna for microwave, ku, and mm-wave band applications of 5g wireless communication. [PDF]

PLoS One
Hameed AN, Al-Bawri SS, Rahman MM, Larguech S, Hasan MM, Alawad MA, Islam MS, Islam MT.   +7 more
europepmc   +1 more source

A compact quad-element serrated boundary fractal planar antenna for multi-band mmWave 5G/6G wireless applications. [PDF]

PLoS One
Addepalli T, Vidyavathi T, SatishKumar M, Divya G, Balaji M, Medasani S, Zidan MS, Ibrahim IM, Al-Gburi AJA.   +8 more
europepmc   +1 more source

Circular MIMO antenna with ML-based bandwidth and isolation prediction for 6G communications. [PDF]

Sci Rep
Alam MM, Ouameur MA, Haque ME, Haque MA, Tiang JJ, Singh NSS, Alsulami R, Alzahrani S.   +7 more
europepmc   +1 more source

Interference cancellation in MIMO and massive MIMO systems. (Annulation d'interférences dans les systèmes MIMO et MIMO massifs (Massive MIMO)).

, 2019
MIMO systems use sensor arrays that can be of large-scale (massive MIMO) and are seen as a potential candidate for future digital communications standards at very high throughput. A major problem of these systems is the high level of interference due to the large number of simultaneous transmitters.
openaire   +1 more source