Results 21 to 30 of about 7,393 (258)
An ultra-wideband origami microwave absorber
Scientific Reports, 2022 Microwave absorbers have been used to mitigate signal interference, and to shield electromagnetic systems. Two different types of absorbers have been presented: (a) low-cost narrowband absorbers that are simple to manufacture, and (b) expensive wideband ...
Akash Biswas +5 more
doaj +1 more source
Trustworthiness for an Ultra-Wideband Localization Service [PDF]
SensorsBernhard Etzlinger +2 more
exaly +2 more sources
Spatiotemporal coherent summation of Ultra-Wideband chaotic radio pulses. Experiment [PDF]
Известия высших учебных заведений: Прикладная нелинейная динамикаThe purpose of this work is to experimentally prove the physical feasibility of coherent addition of chaotic signals (ultra-wideband chaotic radio pulses) in space and time.
Kuzmin, Lev Viktorovich +3 more
doaj +1 more source
IEEE Access, 2019 The ultra-wideband technique has shown its effectiveness for indoor target tracking. Various types of measurements have been applied to ultra-wideband systems for indoor target tracking, and the time difference of arrival (TDOA) measurement-based ...
Hyung June Kim +4 more
doaj +1 more source
Ultra‐wideband wireless communications [PDF]
Wireless Communications and Mobile Computing, 2003 AbstractUltra‐wideband (UWB) communication techniques have attracted a great interest in both academia and industry in the past few years for applications in short‐range wireless mobile systems. This is due to the potential advantages of UWB transmissions such as low power, high rate, immunity to multipath propagation, less complex transceiver hardware,
Weihua Zhuang, Xuemin Shen, Qi Bi
openaire +1 more source
, 2015 The focus of UWB antenna research activity has matured in recent years and currently mainly concentrates on applications such as biomedicine and security. Early UWB antenna designs were driven by the FCC allocation of spectrum in 2002 and focussed on obtaining wide impedance bandwidths with reasonable group delay characteristics.
Ammann, Max +2 more
openaire +3 more sources
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 +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 +4 more
doaj +1 more source
An Investigation of Bluetooth Mergence with Ultra Wideband [PDF]
2008 Third International Conference on Broadband Communications, Information Technology & Biomedical Applications, 2008 This paper presents an investigation into some merging options between an upper-layer Bluetooth (BT) protocol stack with a lower-layer ECMA-368/9 ultra wideband (UWB) radio connection. A Bluetooth over ultra wideband (BToUWB) system is modeled by channeling an existing compliant Bluetooth connection's data over a software implemented UWB medium access ...
Etienne van der Linde +1 more
openaire +1 more source
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 +3 more
doaj +1 more source