Results 101 to 110 of about 29,736 (309)

Thermal Deformation Modeling for Phased Array Antenna Compensation Control. [PDF]

Sensors (Basel), 2022
Liu H, Wang W, Tang D, Zhang L, Wang Y, Miao E.   +5 more
europepmc   +1 more source

Joint Control of Radiated and Surface Waves via Space‐Time Coding Metasurfaces

Advanced Functional Materials, EarlyView.
A unified space‐time coding metasurface platform enables simultaneous control of radiated and surface‐confined waves across multiple harmonics. Demonstrated functionalities include multi‐frequency beam shaping; surface‐wave excitation, and hybrid multiplexing.
Zihao Dai, Yi Ning Zheng, Lei Zhang, Xiao Qing Chen, Giuseppe Castaldi, Tie Jun Cui, Vincenzo Galdi   +6 more
wiley   +1 more source

FORMATION OF THE DIRECTION DIAGRAM IN PHASED ANTENNA ARRAY

Российский технологический журнал, 2019
The article presents the results of the study of phase and temporal methods in the formation of the direction diagram of phased antenna array, and carries out a comparative analysis using an eight-element equidistant antenna array based on Vivaldi ...
N. M. Legkiy, I. V. Unchenko
doaj   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

Multiple-access phased array antenna simulator for a digital beam forming system investigation [PDF]

Future versions of data relay satellite systems are currently being planned by NASA. Being given consideration for implementation are on-board digital beamforming techniques which will allow multiple users to simultaneously access a single S-band phased ...
Alexovich, Robert E., Andro, Monty, Kerczewski, Robert J., Perl, Thomas D., Walton, Joanne C., Yu, John   +5 more
core   +1 more source

RF photonics technology for phased array antenna applications [PDF]

, 2008
One of the key research topics of the Telecommunication Engineering (TE) Group at the University of Twente (UT) is RF Photonics. The aim of this field is to develop schemes that utilize the advantages of optical technology for performing RF functions in ...
Etten, W.C. van, Heideman, R.G., Hoekman, M., Leinse, A., Marpaung, D.A.I., Meijerink, A., Roeloffzen, C.G.H., Zhuang, L.   +7 more
core   +1 more source

Interconnected Porous Hydrogels with Tunable Anisotropy Through Aqueous Emulsion Bioprinting

Advanced Functional Materials, EarlyView.
A 3D bioprintable microporous bioink is developed using an aqueous two‐phase system (ATPS) composed of extracellular matrix (ECM) mimetic biopolymers. The ATPS bioink enables the fabrication of interconnected porous architectures with up to 70% porosity, supporting long‐term cell viability and 3D cell alignment, enabling a simultaneous generation of ...
Hugo Edgar‐Vilar, Francisca P. Correia, Inês M. Freitas, Vítor M. Gaspar, João F. Mano   +4 more
wiley   +1 more source

Metamaterial-Based Wide-Angle Scanning Circularly Polarized Phased Array With Stable Gain

IEEE Open Journal of Antennas and Propagation
In this paper, a wide-angle scanning circularly polarized phased array with stable gain is proposed. The proposed antenna array is composed of truncated microstrip antennas, four rows of mushroom metamaterials, and two tensor holographic metasurfaces ...
Xiangyu Yin, Wu Ren, Zhenghui Xue, Weiming Li   +3 more
doaj   +1 more source

Wireless Power Transfer to a Microaerial Vehicle with a Microwave Active Phased Array

International Journal of Antennas and Propagation, 2014
A wireless power transfer system using a microwave active phased array was developed. In the system, power is transferred to a circling microaerial vehicle (MAV) by a microwave beam of 5.8 GHz, which is formed and directed to the MAV using an active ...
Shotaro Nako, Kenta Okuda, Kengo Miyashiro, Kimiya Komurasaki, Hiroyuki Koizumi   +4 more
doaj   +1 more source

Germanane Quantum Dots Promote Metabolic Reprogramming of Immune Cells Toward Regulatory T Cells and Suppress Inflammation In Vitro and In Vivo

Advanced Functional Materials, EarlyView.
Metabolic changes in immune cells direct the phenotype and function of the host immune system. Smart nanomaterials must target metabolic pathways to direct immune cell fate. This study reports the fabrication and first application of germanane quantum dots (GeHQDs) to modulate inflammation in vitro and in vivo.
Abhay Srivastava, Alireza Rafieerad, Weiang Yan, Keshav Narayan Alagarsamy, Qingdong Guan, Leena Regi Saleth, Michel Aliani, Sanjiv Dhingra   +7 more
wiley   +1 more source