Results 21 to 30 of about 6,936 (164)

Triple-band scheduling with millimeter wave and terahertz bands for wireless backhaul

open access: yesJournal of Communications and Networks, 2022
With the explosive growth of mobile traffic demand, densely deployed small cells underlying macrocells have great potential for 5G and beyond wireless networks. In this paper, we consider the problem of supporting traffic flows with diverse QoS requirements by exploiting three high frequency bands, i.e., the 28GHz band, the E-band, and the Terahertz ...
Yibing Wang   +7 more
openaire   +2 more sources

Recent Progress in the Development of Graphene Detector for Terahertz Detection

open access: yesSensors, 2021
Terahertz waves are expected to be used in next-generation communications, detection, and other fields due to their unique characteristics. As a basic part of the terahertz application system, the terahertz detector plays a key role in terahertz ...
Jianlong Liu   +9 more
doaj   +1 more source

Vanadium Dioxide-Based Terahertz Metamaterial Devices Switchable between Transmission and Absorption

open access: yesMicromachines, 2022
Terahertz metamaterial plays a significant role in the development of imaging, sensing, and communications. The function of conventional terahertz metamaterials was fixed after fabrication.
Haoqing Jiang   +5 more
doaj   +1 more source

Diffraction Effects in Terahertz Band - Measurements and Analysis [PDF]

open access: yes2016 IEEE Global Communications Conference (GLOBECOM), 2016
Measurement results and related analysis on the diffraction properties in the THz frequency band are reported. The results are given on the bands from approximately 100 GHz to 2 THz. Measurements were made for knife-edge diffraction, and diffraction through single and double slits.
Joonas Kokkoniemi   +3 more
openaire   +2 more sources

Polarization-resolved ultrafast all-optical terahertz micro-grating array modulator based on Weyl semimetallic microfilm towards 6G technology

open access: yesResults in Physics, 2023
The 6th generation (6G) of communication technology, defines 0.1–1 THz as the communication band. As a result, ultrafast modulation and multi-dimensional resolution coding technologies in the terahertz band pose a big challenge.
Min Zhang   +8 more
doaj   +1 more source

Terahertz metamaterials for broadband, high modulation depth modulator, and tunable dual-band absorber based on metal-vanadium dioxide hybrid structure

open access: yesAIP Advances, 2023
Terahertz metamaterials for broadband, high modulation depth modulating, and tunable dual-band absorbing are designed based on the similar composite structure of metal and vanadium dioxide film arrays. By using external excitation to induce the insulator-
Chenxi Liu   +3 more
doaj   +1 more source

Frequency coding metasurface for multiple directions manipulation of terahertz energy radiation

open access: yesAIP Advances, 2019
A multifunctional frequency coding metasurface is proposed in terahertz frequency band. Different from the previous coding metasurface with a fixed phase difference of the neighbor coding unit cells in the whole working frequency band, the proposed ...
Shao-He Li, Jiu-Sheng Li
doaj   +1 more source

Terahertz Pulse Emission from Semiconductor Heterostructures Caused by Ballistic Photocurrents

open access: yesSensors, 2021
Terahertz radiation pulses emitted after exciting semiconductor heterostructures by femtosecond optical pulses were used to determine the electron energy band offsets between different constituent materials.
Vitaly Leonidovich Malevich   +5 more
doaj   +1 more source

Terahertz High-resolution Radar Clutter Measurement and Analysis

open access: yesLeida xuebao, 2015
The clutter characteristics of terahertz high-resolution radar are essential for terahertz radar detection. This study analyzes the traditional clutter probabilistic model and the corresponding parametric estimation methods.
Yu Yang, Pi Yi-ming
doaj   +1 more source

Toward Sub‐Terahertz: Space‐Time Coding Metasurface Transmitter for Wideband Wireless Communications

open access: yesAdvanced Science, 2023
A space‐time coding metasurface (STCM) operating in the sub‐terahertz band to construct new‐architecture wireless communication systems is proposed. Specifically, a programmable STCM is designed with varactor‐diode‐tuned metasurface elements, enabling ...
Yujie Liu   +12 more
doaj   +1 more source

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