Results 21 to 30 of about 232,144 (296)

SRR Slotted Multiband Antenna in Sub 6-GHz for Futuristic Communication [PDF]

EAI Endorsed Transactions on Energy Web, 2021
Futuristic communication in sub 6-GHz demands a compact antenna with multi-band resonance. This would be necessary to cater to the need in LTE, Wireless Fidelity, and 5G applications.
Ranjan Mishra, Rajeev Dandotia, Raj Mishra, Piyush Kuchhal, Rupendra Pachauri   +4 more
doaj   +1 more source

Multi-Band Analogue Electromagnetically Induced Transparency in DoubleTuned Metamaterials

Nanomaterials, 2021
A multi-band analogue electromagnetically induced transparency (A-EIT) metamaterial is proposed. The structure is composed of liquid crystal (LC) layer and a graphene strips layer on both sides of silicon dioxide.
Wei Huang, Ningye He, Renxia Ning, Zhenhai Chen   +3 more
doaj   +1 more source

Asynchrony in multi-band speech recognition [PDF]

2000 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings (Cat. No.00CH37100), 2002
In this paper, an algorithm for continuous speech recognition systems based on the Multi-Band principle is proposed. This algorithm allows the bands to be asynchronous and has a practical complexity that is very close to the complexity of the classical Viterbi algorithm.
Cerisara, Christophe, Fohr, Dominique, Haton, Jean-Paul   +2 more
openaire   +2 more sources

A Wearable Self-Grounding Slit Antenna for ISM/4G/5G/Bluetooth/WLAN Applications

IEEE Access, 2023
This design proposes a self-grounding semi-circular gap dual-band flexible antenna in the context of the rapid development of wireless body area networks.
Zhen Yu, Ruirong Niu, Guodong Zhang, Runzhi Sun, Ziheng Lin, Yao Li, Xiaoying Ran   +6 more
doaj   +1 more source

Investigation of a Flexible Downstream Scheme for Sampling Rate and Bandwidth Reduction in Short Reach Communication Systems

IEEE Access, 2020
We demonstrate a cost- and spectrum-effective orthogonal frequency-division multiple access passive optical network downstream scheme based on multi-band and modified sub-Nyquist sampling over transmission reach of 20km.
Yupeng Li, Jiawei Han, Liang Han, Cheng Ju   +3 more
doaj   +1 more source

Development Review of Broadband and Multi-Band Outphasing Power Amplifiers for High-Efficiency Amplification

Energies, 2023
Outphasing power amplifiers (OPAs) can be used in wireless information and power transfer systems due to their excellent conversion efficiency. With the rapid advancement of technology, there is a strong demand for OPAs to achieve wideband and multi-band
Yu Zhang, Chunyu Hu, Xia Liu, Jun Wang, Wenxu Zhong, Ping Tian, Shuai Lin, Weimin Shi   +7 more
doaj   +1 more source

Multi-Band Functional Tunable LH Impedance Transformer [PDF]

Journal of Electromagnetic Waves and Applications, 2009
This paper presents, for the first time, the analysis and design performance of tunable left handed coplanar waveguide transformer designed on a ferrite substrate. The proposed transformer is studied analytically and verified numerically. Results show that the proposed transformer has tunable dual band of operation with frequency tuning range from 2.35
Abdalla, M. A., Hu, Z.
openaire   +1 more source

Multi-Band Electromagnetically-Induced-Transparency Metamaterial Based on the Near-Field Coupling of Asymmetric Split-Ring and Cut-Wire Resonators in the GHz Regime

Crystals, 2021
A metamaterial (MM), mimicking electromagnetically-induced transparency (EIT) in the GHz regime, was demonstrated numerically and experimentally by exploiting the near-field coupling of asymmetric split-ring and cut-wire resonators.
Man Hoai Nam, Vu Thi Hong Hanh, Nguyen Ba Tuong, Bui Son Tung, Bui Xuan Khuyen, Vu Dinh Lam, Liang Yao Chen, Young Pak Lee   +7 more
doaj   +1 more source

Multi‐band joint local sparse tracking via wavelet transforms

IET Computer Vision, 2016
A novel multi‐band joint local sparse tracking algorithm via wavelet transforms is proposed in this study. The object image may contain rich information of different types; the authors use wavelet transforms to decompose the object image into some sub ...
Guang Han, Heng Luo, Jixin Liu, Ning Sun, Kun Du, Xiaofei Li   +5 more
doaj   +1 more source

Neural network modeling of bismuth-doped fiber amplifier

Journal of the European Optical Society-Rapid Publications, 2023
Bismuth-doped fiber amplifiers offer an attractive solution for meeting continuously growing enormous demand on the bandwidth of modern communication systems.
Donodin Aleksandr, de Moura Uiara Celine, Brusin Ann Margareth Rosa, Manuylovich Egor, Dvoyrin Vladislav, Da Ros Francesco, Carena Andrea, Forysiak Wladek, Zibar Darko, Turitsyn Sergei K.   +9 more
doaj   +1 more source