Results 51 to 60 of about 758,632 (333)

Implementation Aspects of a Transmitted-Reference UWB Receiver [PDF]

, 2005
In this paper, we discuss the design issues of an ultra wide band (UWB) receiver targeting a single-chip CMOS implementation for low data-rate applications like ad hoc wireless sensor networks. A non-coherent transmitted reference (TR) receiver is chosen
Bevilacqua, Blazquez, Blazquez, Carbonelli, Carbonelli, Cassioli, Chen, Choi, Colavolpe, Cramer, Durisi, Durisi, Foerster, Franz, Helal, Ho, Hoctor, IEEE 802.15 WPAN Low rate Alternative PHY Task Group 4a (TG4a), Kunisch, Lottici, Mielczarek, Newaskar, O'Donnell, Orndorff, Proakis, Qiu, Rabbachin, Saleh, Souilmi, Stoica, Walden, Weisenhorn, Zhang   +32 more
core   +1 more source

A New Time-Hopping Multiple Access Communication System Simulator: Application to Ultra-Wideband

EURASIP Journal on Advances in Signal Processing, 2005
Time-hopping ultra-wideband technology presents some very attractive features for future indoor wireless systems in terms of achievable transmission rate and multiple access capabilities.
José M. Páez-Borrallo, Galo Nuño-Barrau   +1 more
doaj   +1 more source

Wideband Filtering Power Divider With Ultra-Wideband Harmonic Suppression and Isolation

IEEE Access, 2016
In this paper, a wideband filtering power divider (PD) with ultra-wideband harmonic suppression and isolation is proposed. The dual coupled-line sections are embedded to the conventional quarter-wavelength transmission lines, which helps to extend the ...
Yongle Wu, Zheng Zhuang, Yuanan Liu, Li Deng, Zabih Ghassemlooy   +4 more
doaj   +1 more source

Ultra-wideband terahertz fingerprint enhancement sensing and inversion model supported by single-pixel reconfigurable graphene metasurface

PhotoniX
The molecular fingerprint sensing technology based on metasurface has unique attraction in the biomedical field. However, in the terahertz (THz) band, existing metasurface designs based on multi-pixel or angle multiplexing usually require more analyte ...
Bingwei Liu, Yan Peng, Yufan Hao, Yiming Zhu, Shengjiang Chang, Songlin Zhuang   +5 more
semanticscholar   +1 more source

Ultra-Wideband Low-RCS Circularly-Polarized Metasurface-Based Array Antenna Using Tightly-Coupled Anisotropic Element

IEEE Access, 2018
A novel broadband circular-polarized array antenna with ultra-wideband low radar cross section (RCS) is proposed. The array is made up of 2 × 2 identically circular-polarized sub-arrays in a chessboard configuration.
Lili Cong, Xiangyu Cao, Jun Gao, Tao Song   +3 more
doaj   +1 more source

Origami metamaterials for ultra-wideband and large-depth reflection modulation

Nature Communications
The dynamic control of electromagnetic waves is a persistent pursuit in modern industrial development. The state-of-the-art dynamic devices suffer from limitations such as narrow bandwidth, limited modulation range, and expensive features.
Zicheng Song, Juanfeng Zhu, Xianchao Wang, Ruicong Zhang, Pingping Min, Wenxin Cao, Yurong He, Jiecai Han, Tianyu Wang, Jiaqi Zhu, Lin Wu, Cheng-wei Qiu   +11 more
semanticscholar   +1 more source

Iterative Code Acquisition for DS-UWB Downlink using Multiple-Component Decoders

, 2008
Iterative code acquisition schemes employing beneficially chosen higher-order generator polynomials and multiple-component decoders are analysed in terms of the correct detection probability of the direct sequence-ultra-wideband (DS-UWB) downlink.
Hanzo, L, Won, S.H.
core   +1 more source

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

Advanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie, David Kramer, Thomas Scheithauer, Hans Jürgen Maier, Thomas Hassel   +4 more
wiley   +1 more source

An Ultra-Wideband Frequency System for Non-Destructive Root Imaging

Sensors, 2018
Understanding the root system architecture of plants as they develop is critical for increasing crop yields through plant phenotyping, and ultra-wideband imaging systems have shown potential as a portable, low-cost solution to non-destructive imaging ...
Thomas Truong, Anh Dinh, Khan Wahid
doaj   +1 more source

Ultra-Wideband Networking

International Journal of Advanced Research in Science, Communication and Technology, 2021
Ultra broad band (UWB) has emerged as a leading technology for potential wireless applications due to recent developments in wideband impulse technology, low power and communication. When opposed to traditional narrow band networks, ultra-wide band (UWB) wireless communications takes a completely different approach to wireless communication.
openaire   +1 more source