Results 61 to 70 of about 18,440 (296)

Linear phased array of loop antennas with controllable polarization

Доклады Белорусского государственного университета информатики и радиоэлектроники, 2019
The possibility of using of designed compact loop antennas with controllable polarization as linear phased array antenna element is considered. The obtained results can be used in designing of phased antenna arrays.
U. V. Keda
doaj  

A low sidelobe 77 GHz centre‐fed microstrip patch array antenna

IET Microwaves, Antennas & Propagation, 2023
A low sidelobe 77 GHz centre‐fed microstrip patch array antenna is proposed for automotive radar application. The proposed antenna comprises eight linear antenna arrays, each of which is centre‐fed by a coplanar waveguide with ground transmission line at
Qian Chen, Songlin Yan, Xinyue Guo, Wei Wang, Zhixiang Huang, Lixia Yang, Yingsong Li, Xianling Liang   +7 more
doaj   +1 more source

High-Directionality Silicon Nitride Antenna Based on Distributed Bragg Reflector for Optical Phased Array

Photonics, 2023
Optical phased arrays (OPAs) have great potential in the fields of integrated solid-state light detection and ranging. The ranging distance of an OPA can be further enlarged by improving the directionality of the grating antenna.
Jinmei Wei, Yan Li, Yuejun Zhang, Tingge Dai, Xiangyu Li, Xiaowei Zhang, Ying Wang   +6 more
doaj   +1 more source

Hybrid MIMO Architectures for Millimeter Wave Communications: Phase Shifters or Switches?

, 2015
Hybrid analog/digital MIMO architectures were recently proposed as an alternative for fully-digitalprecoding in millimeter wave (mmWave) wireless communication systems.
Alkhateeb, Ahmed, González-Prelcic, Nuria, Heath Jr, Robert W., Méndez-Rial, Roi, Rusu, Cristian   +4 more
core   +1 more source

Development Toward a Ground-Based Interferometric Phased Array for Radio Detection of High Energy Neutrinos [PDF]

, 2017
The in-ice radio interferometric phased array technique for detection of high energy neutrinos looks for Askaryan emission from neutrinos interacting in large volumes of glacial ice, and is being developed as a way to achieve a low energy threshold and a
Avva, J., Bechtol, K., Chesebro, T., Cremonisi, L., Deaconu, C., Gupta, A., Ludwig, A., Messino, W., Miki, C., Nichol, R., Oberla, E., Ransom, M., Romero-Wolf, A., Saltzberg, D., Schlupf, C., Shipp, N., Varner, G., Vieregg, A. G., Wissel, S. A.   +18 more
core   +2 more sources

Advancing Electronic Application of Coordination Solids: Enhancing Electron Transport and Device Integration via Surface‐Mounted MOFs (SURMOFs)

Advanced Functional Materials, EarlyView.
The layer‐by‐layer (LbL) assembly of coordination solids, enabled by the surface‐mounted metal‐organic framework (SURMOF) platform, is on the cusp of generating the organic counterpart of the epitaxy of inorganics. The programmable and sequential SURMOF protocol, optimized by machine learning (ML), is suited for accessing high‐quality thin films of ...
Zhengtao Xu, Christof Wöll, Stefan Bräse   +2 more
wiley   +1 more source

A high‐power, high‐isolation, dual‐polarised planar phased array antenna

IET Microwaves, Antennas & Propagation
A high‐power, high‐isolation, dual‐polarised planar phased array antenna is presented. Based on a multi‐layer microstrip structure, two sets of polarisation ports are fed through orthogonal slot coupling, achieving high isolation and low cross ...
Junxing Jiang, Shaoqiu Xiao, Yiming Zhang, Shaoyi Xie   +3 more
doaj   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

Advanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan, Marie Le Pivert, Alireza Ranjbari, Diana Dragoe, Daniel Bahena‐Uribe, Christophe Colbeau‐Justin, Christian Herrero, Dorota Rutkowska‐Zbik, Johnny Deschamps, Hynd Remita   +9 more
wiley   +1 more source

Phased Antenna Arrays, Software Defined Radio and Artificial Intelligence: Advancing LEO Satellite Communications

Advances in Electrical and Computer Engineering
This article explores how phased antenna arrays can enhance Low Earth Orbit (LEO) satellite reception systems, while addressing cybersecurity challenges in wireless communications.
ADOMNITEI, C.-I., LESANU, C.-E., DONE, A., COCA, E., LAVRIC, A.   +4 more
doaj   +1 more source