Results 31 to 40 of about 6,936 (164)

Identification of Terahertz Link Modulation in Atmospheric Weather Conditions

open access: yesApplied Sciences, 2023
With the rapid increase of wireless connectivity, current spectrum resources are not enough for significant requirements for large data capacity. Research interests are moving towards the high-frequency band in the terahertz range for wider bandwidth ...
Zhendong Wu   +5 more
doaj   +1 more source

Plasmonic Terahertz Amplification in Graphene-Based Asymmetric Hyperbolic Metamaterial

open access: yesPhotonics, 2015
We propose and theoretically explore terahertz amplification, based on stimulated generation of plasmons in graphene asymmetric hyperbolic metamaterials (AHMM), strongly coupled to terahertz radiation.
Igor Nefedov, Leonid Melnikov
doaj   +1 more source

Enhanced 3D stacked W-band RF front-end: achieving 6.8W output power with a highly integrated 4-channel power combining amplifier

open access: yesJournal of Physics Communications
With the increasing application of terahertz technology in modern military, communications, and automotive radar systems, the need for miniaturized and highly integrated terahertz transceiver designs has become more critical.The ability of terahertz ...
Kun Huang   +7 more
doaj   +1 more source

Design of terahertz metasurface structures for biosensing applications based on deep learning methods

open access: yesResults in Physics
With the advancement of terahertz band applications, extensive research has been conducted on terahertz devices. Terahertz band biosensors find widespread use in biomedical microdetection; however, predicting terahertz spectrum and designing structures ...
Qixiang Zhao   +3 more
doaj   +1 more source

Organohydrogel-based transparent terahertz absorber via ionic conduction loss

open access: yesNature Communications
The fast-growing terahertz technologies require high-performance terahertz absorber for suppressing electromagnetic interference. Since the dissipation mechanism in terahertz band usually focuses on electronic conduction loss, almost all terahertz ...
Wenke Xie   +8 more
doaj   +1 more source

Design of a Reconfigurable Ultra-Wideband Terahertz Polarization Rotator Based on Graphene Metamaterial

open access: yesSensors, 2023
In this work, a reconfigurable ultra-wideband transmissive terahertz polarization rotator based on graphene metamaterial is proposed that can switch between two states of polarization rotation within a broad terahertz band by changing the Fermi level of ...
Guowen Ding   +4 more
doaj   +1 more source

Compressed Detection for Pulse‐Based Communications in the Terahertz Band [PDF]

open access: yesWireless Communications and Mobile Computing, 2018
Terahertz (THz) band (0.1‐10 THz)‐based electromagnetic communications are envisioned as a key technology to enable future high‐data‐rate short‐range ultrabroadband communications. However, one of the fundamental bottlenecks is the efficiency of the analog‐to‐digital converters (ADCs) considering the formidable challenge of sampling the signal at the ...
Pankaj Singh   +2 more
openaire   +1 more source

Deflective Vortex Beam Generation Based on Metasurfaces in the Terahertz Band

open access: yesLeida xuebao, 2021
Terahertz vortex beams can be used to improve the communication capacity of radar communication systems and the resolution of imaging systems. This paper presents a deflective vortex beam generation method based on a reflective metasurface working in the
Hongyu SHI   +6 more
doaj   +1 more source

System Integration and Packaging of a Terahertz Photodetector at $W$ -Band [PDF]

open access: yesIEEE Transactions on Components, Packaging and Manufacturing Technology, 2019
This paper presents the system integration and packaging of a photodetector at W-band (75-110 GHz) for terahertz (THz) communications. The ErAs:In(Al)GaAs photoconductor and its feeding network based on semi-insulating indium phosphide (InP) substrate are introduced.
Yunfeng Dong   +9 more
openaire   +1 more source

High‐Efficiency Phase and Polarization Modulation Metasurfaces

open access: yesAdvanced Photonics Research, 2022
Use of metasurfaces to control the characteristics of electromagnetic waves is an emerging trend at present. Multifunctional metasurfaces, which can modulate multiple wave parameters, greatly reduce the complexity and enrich the functionality of optical ...
Huan Zhao   +4 more
doaj   +1 more source

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