Results 61 to 70 of about 419,970 (292)

Low SAR Multi-Coupling Feed Antenna and Multi-Device MIMO System Design: Suitable for Multi-Band Wireless Communications

IEEE Access
This article introduces the design of a multi-coupling feed antenna (MCFA) appropriate for 4G LTE, 5G NR (sub-6 GHz), and WLAN frequency bands. Most antenna designs used in different consumer electronic products only include specific 5G NR frequency ...
Ming-An Chung, Zhi-Xuan Zhang, Chia-Chun Hsu, Chia-Wei Lin   +3 more
doaj   +1 more source

Compact Uniplanar Multi Feed Multi Band ACS Monopole Antenna Loaded With Multiple Radiating Branches for Portable Wireless Devices

Advanced Electromagnetics, 2018
This research article presents, a compact 0.19 λ x 0.32 λ size ACS fed printed monopole wideband antenna loaded with multiple radiating branches suitable for LTE2300/WiBro, 5 GHz WLAN and WiMAX applications.
P. N. Vummadisetty, A. Kumar
doaj   +1 more source

Exploiting Device-to-Device Communications in Joint Scheduling of Access and Backhaul for mmWave Small Cells

, 2015
With the explosive growth of mobile data demand, there has been an increasing interest in deploying small cells of higher frequency bands underlying the conventional homogeneous macrocell network, which is usually referred to as heterogeneous cellular ...
Gao, Chuhan, Jin, Depeng, Li, Yong, Niu, Yong, Su, Li, Vasilakos, Athanasios V.   +5 more
core   +1 more source

Enhanced Strength and Corrosion Resistance of Ti‐13Nb‐12Ta‐10Zr‐4Sn Alloy by Aging Treatment

Advanced Engineering Materials, EarlyView.
This work systematically investigates the effect of aging treatment on mechanical properties and corrosion behavior of vacuum arc‐melted Ti‐13Nb‐12Ta‐10Zr‐4Sn alloy. Owing to the increased α″ martensite, strength and corrosion resistance were significantly enhanced by aging treatment.
Yuhua Li, Rong Zhao, Qian Zhang, Haojie Wang, Yujing Liu, Lai‐Chang Zhang   +5 more
wiley   +1 more source

InP/Si₃N₄ Hybrid Integrated Lasers for RF Local Oscillator Signal Generation in Satellite Payloads

Photonics
This paper presents an integrated tunable hybrid multi-laser module designed to simultaneously generate multiple radiofrequency (RF) local oscillator (LO) signals through optical heterodyning.
Jessica César-Cuello, Alberto Zarzuelo, Robinson C. Guzmán, Charoula Mitsolidou, Ilka Visscher, Roelof B. Timens, Paulus W. L. Van Dijk, Chris G. H. Roeloffzen, Luis González, José Manuel Delgado Mendinueta, Guillermo Carpintero   +10 more
doaj   +1 more source

On the Packet Allocation of Multi-Band Aggregation Wireless Networks

, 2017
The use of heterogeneous networks with multiple radio access technologies (RATs) is a system concept that both academia and industry are studying.
Chincholi, Amith, Demir, Alpaslan, Elkourdi, Tariq, Goyal, Sanjay, Le, Tan   +4 more
core   +1 more source

Processing of multi-band images based on matrix devices with charge coupling

МОДЕЛИРОВАНИЕ, ОПТИМИЗАЦИЯ И ИНФОРМАЦИОННЫЕ ТЕХНОЛОГИИ, 2022
В статье рассматривается и обосновывается принцип совмещения и обработки разнодиапазонных изображений на базе матричных приборов с зарядовой связью. Разработанный принцип предлагается как альтернатива программной реализации задачи совмещения и обработки разнодиапазонных изображений.
openaire   +1 more source

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

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

Advanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song, Stefan Rettinger, Chengzhang Xu, Ulrich Mansfeld, Markus Retsch   +4 more
wiley   +1 more source

Switchable THz Bi-Functional Device for Absorption and Dual-Band Linear-to-Circular Polarization Conversion Based on Vanadium Dioxide–Graphene

Sensors
This academic paper proposes a terahertz (THz) device featuring dynamic adjustability. This device relies on composite metamaterials made of graphene and vanadium dioxide (VO2). By integrating the electrically adjustable traits of graphene with the phase
Yiqu Wang, Haohan Xie, Rong Liu, Jun Dong   +3 more
doaj   +1 more source