Results 1 to 10 of about 419,970 (292)
IEEE Transactions on Vehicular Technology, 2019 Heterogeneous cellular networks (HCNs) with millimeter wave (mm-wave) communications are considered as a promising technology for the fifth generation mobile networks.
Yali Chen, Bo Ai, Yong Niu
exaly +4 more sources
Acoustic Metamaterial Nanogenerator for Multi-Band Sound Insulation and Acoustic–Electric Conversion [PDF]
SensorsControlling low-frequency noise and achieving multi-band sound insulation remain significant challenges and have long been hot topics in industrial research.
Xinwu Liang, Ming Yuan
doaj +2 more sources
Sensors, 2022 Theoretical and numerical studies were conducted on plasmonic interactions at a polarization-independent semiconductor–dielectric–semiconductor (SDS) sandwiched layer design and a brief review of the basic theory model was presented.
Zohreh Vafapour
doaj +3 more sources
Terahertz Wave Absorber Relying on Strontium Titanate and Dirac Semimetal for Dual Adjustability [PDF]
MicromachinesLimited by the material response characteristics and structural design, the development of dynamically tunable terahertz absorbers with multi-functional properties remains a major challenge.
Zeng Qu +9 more
doaj +2 more sources
A Multi-band Solution for Interacting with Energy-Neutral Devices [PDF]
2021 55th Asilomar Conference on Signals, Systems, and Computers, 2021 RF Wireless Power Transfer (WPT) emerges as a technology for charging autonomous devices, enabling simultaneous power and information transfer. However, with increasing distance, single-input, single-channel rectenna systems are not able to meet the power requirements of large scale IoT applications. In this paper, we tackle this problem on two levels.
Buyle, Chesney +3 more
openaire +4 more sources
A Multi-Modal Energy Harvesting Device for Multi-Directional and Low-Frequency Wave Energy
Frontiers in Materials, 2022 As a kind of sustainable energy source, ocean wave energy has always attracted attention. Because of the characteristics of multi-directions and low-bandwidth, the harvesting of wave energy has always been difficult.
Yikai Zhu +4 more
doaj +1 more source
Graphene-based THz absorber: adjustability via multiple gate biasing
Heliyon, 2021 A multi-layer absorber using multi-bias arrays of graphene is proposed. The design methodology using the equivalent circuit model and matching concept is described.
Sindokht Cyrus, Sadegh Biabanifard
doaj +1 more source
Reflective coupled microring resonators for reconfigurable photonic systems: Performance analysis
Results in Optics, 2021 We propose reflective type triple coupled microring resonators (TCMMRs) for reconfigurable photonic based systems. We have developed an analytical model and analyzed its useful performance characteristics. The TCMMRs based device exhibits a wide range of
Fekadu Mihret Geremew +1 more
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Optical Properties of Type-Ⅱ InAs/GaSb Superlattices for Wide Band Infrared Detection [PDF]
Hangkong bingqi, 2021 InAs/GaSb type-Ⅱ superlattices (T2SLs) are considered as high-quality material for the third-generation infrared detectors due to the special energy band structure and mature material growth technology.
Li Hongkai, Li Mo, Dong Shangwei, Hong Jin, Chen Ye, Jing Chengbin, Yue Fangyu, Chu Junhao
doaj +1 more source
Development of low-cost multi-wavelength imager system for studies of aurora and airglow [PDF]
, 2020 This paper introduces a new system that can monitor aurora and atmospheric airglow using a low-cost Watec monochromatic imager (WMI) equipped with a sensitive camera, a filter with high transmittance, and the non-telecentric optics.
Brändström, U. +22 more
core +2 more sources