Results 271 to 280 of about 758,632 (333)
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International Symposium on Information Processing in Sensor Networks, 2022
The introduction of the Wi-Fi 6E standard operating in the 6 GHz frequency band is a serious threat for IoT systems based on ultra-wideband technology, as they share portions of the same spectrum.
Hannah Brunner +5 more
semanticscholar +1 more source
The introduction of the Wi-Fi 6E standard operating in the 6 GHz frequency band is a serious threat for IoT systems based on ultra-wideband technology, as they share portions of the same spectrum.
Hannah Brunner +5 more
semanticscholar +1 more source
A Ferrite-Loaded Ultra-Low Profile Ultra-Wideband Tightly Coupled Dipole Array
IEEE Transactions on Antennas and Propagation, 2021A dual-polarized ferrite-loaded ultra-wideband tightly coupled dipole array (TCDA) with an extremely low profile is presented. A novel ferrite grid with high relative permeability and permittivity characteristic is loaded between the antenna and ground ...
Bing-Zhong Wang +5 more
semanticscholar +1 more source
Ultra-Wideband Polarization Insensitive Thin Absorber Based on Resistive Concentric Circular Rings
IEEE transactions on electromagnetic compatibility (Print), 2021Eliminating stray and suppressing unwanted radiation in a high frequency circuit is difficult. It becomes a challenge to achieve an ultra-wide absorption band in a thin-single-layer microwave absorber.
S. Sambhav, J. Ghosh, A. Singh
semanticscholar +1 more source
An ultra-wideband and wide-angle optically transparent flexible microwave metamaterial absorber
Journal of Physics D: Applied Physics, 2021In this work, we propose an ultra-wideband and wide-angle optically transparent flexible metamaterial absorber (MMA), consisting of a multilayered structure with a transparent polyvinyl chloride layer and a periodic indium-tin-oxide patch array attached ...
Yufan Zhao +5 more
semanticscholar +1 more source
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2006
A surface acoustic wave (SAW) correlator that satisfies FCC bandwidth requirements for ultra-wideband (UWB) operation has been built and tested. The correlator operates within the 3.1 to 10.6 GHz bandwidth region and uses bi-phase shift keying (BPSK) modulation to achieve a spreading of the main lobe to a 25% bandwidth.
Robert, Brocato +5 more
openaire +2 more sources
A surface acoustic wave (SAW) correlator that satisfies FCC bandwidth requirements for ultra-wideband (UWB) operation has been built and tested. The correlator operates within the 3.1 to 10.6 GHz bandwidth region and uses bi-phase shift keying (BPSK) modulation to achieve a spreading of the main lobe to a 25% bandwidth.
Robert, Brocato +5 more
openaire +2 more sources
IEEE Transactions on Cybernetics, 2020
This puts forth an infrastructure-free cooperative relative localization (RL) for unmanned aerial vehicles (UAVs) in global positioning system (GPS)-denied environments.
Kexin Guo, Xiuxian Li, Lihua Xie
semanticscholar +1 more source
This puts forth an infrastructure-free cooperative relative localization (RL) for unmanned aerial vehicles (UAVs) in global positioning system (GPS)-denied environments.
Kexin Guo, Xiuxian Li, Lihua Xie
semanticscholar +1 more source
33rd European Microwave Conference Proceedings (IEEE Cat. No.03EX723C), 2003
The current status of ultra-wideband technology and its main applications such as radars and telecom are presented. The main system approaches for radars and communications are discussed and compared.
openaire +1 more source
The current status of ultra-wideband technology and its main applications such as radars and telecom are presented. The main system approaches for radars and communications are discussed and compared.
openaire +1 more source
Communications in Theoretical Physics
This study introduces an innovative dual-tunable absorption film with the capability to switch between ultra-wideband and narrowband absorption. By manipulating the temperature, the film can achieve multi-band absorption within the 30–45 THz range or ...
Wenxin Li +8 more
semanticscholar +1 more source
This study introduces an innovative dual-tunable absorption film with the capability to switch between ultra-wideband and narrowband absorption. By manipulating the temperature, the film can achieve multi-band absorption within the 30–45 THz range or ...
Wenxin Li +8 more
semanticscholar +1 more source
Advances in Materials, 2020
Artificially engineered metasurfaces provide extraordinary wave control at the subwavelength scale. However, metasurfaces proposed so far suffer due to limited bandwidths.
M. R. Akram +4 more
semanticscholar +1 more source
Artificially engineered metasurfaces provide extraordinary wave control at the subwavelength scale. However, metasurfaces proposed so far suffer due to limited bandwidths.
M. R. Akram +4 more
semanticscholar +1 more source
2004 Second International Workshop Ultrawideband and Ultrashort Impulse Signals (IEEE Cat. No.04EX925), 2005
Here, we present a description of a block scheme, characteristics, specific features of design and results of testing for a prototype of the ultrawideband (UWB) radar, which has been developed by Russian UWB group researchers at Moscow Aviation Institute at "analog and digital radio systems" department (www.uwbgroup.ru).
I. Immoreev, E. Ziganshin
openaire +1 more source
Here, we present a description of a block scheme, characteristics, specific features of design and results of testing for a prototype of the ultrawideband (UWB) radar, which has been developed by Russian UWB group researchers at Moscow Aviation Institute at "analog and digital radio systems" department (www.uwbgroup.ru).
I. Immoreev, E. Ziganshin
openaire +1 more source