Results 31 to 40 of about 18,674 (260)
Dual-Band Diffusive Metasurface-Based Reflector With Low Out-of-Band Backscattering
IEEE Access, 2020 This article describes a dual-band diffusive metasurface-based reflector, with a specular reflection band together with two sidebands which exhibit low radar cross-section (RCS).
Qihao Lv +5 more
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Space‐Time Coding Conformal Metasurfaces for Multifrequency Beam Steering and Shaping
Advanced Materials, EarlyView.Space‐time coding conformal metasurfaces enable dynamic wave control on curved surfaces by combining programmable spatial patterns with temporal modulation. This study shows that a single conformal aperture can independently manipulate multiple frequency components, achieving multifunctional beam shaping and steering, with implications for ...
Filippo Pepe +8 more
wiley +1 more source
Sustainable and Multifunctional Natural Macromolecular Polymers for Aqueous Zn Metal Batteries
Advanced Materials, EarlyView.We comprehensively review the structure‐function relationships and regulatory mechanism of natural macromolecular polymers in stabilizing zinc anodes at the microscopic and mesoscopic scales. The interactions among polymer structures, optimization strategies, and regulatory mechanisms are discussed systematically summarizing recent related research ...
Yunuo Shi +13 more
wiley +1 more source
Sea Ice Concentration Manifestation in Radar Signal at Low Incidence Angles Depending on Wind Speed
Remote SensingIn previous studies, the possibilities of Ku-band radar measurements at low incidence angles were investigated for the task of sea ice detection. In this paper, the sensitivity of normalized radar cross-section to sea ice concentration is investigated at
Maria Panfilova, Vladimir Karaev
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Bistatic Radar Cross Sections of Surfaces of Revolution [PDF]
Journal of Applied Physics, 1955 The results obtained by applying the current-distribution method to the problem of approximating the scattering cross section, when the transmitter and receiver are separated, are presented for several simple geometric configurations. The method is applied for the case in which the transmitter is located on the axis of revolution and the ratio l/λ is ...
Siegel, Keeve Milton +6 more
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Electrolyte Design for Fast‐Charging Lithium‐Based Batteries
Advanced Materials, EarlyView.A decade of progress in fast‐charging electrolytes for lithium batteries is reviewed. Electrolyte design strategies spanning solvents, salts, additives, and advanced systems, such as localized high‐concentration electrolytes (LHCEs), are summarized. Advanced diagnostic tools for lithium plating and interphase chemistry are discussed, with perspectives ...
Chen Liu, Zehao Cui, Arumugam Manthiram
wiley +1 more source
AerospaceTo find a trajectory with low radar detection probability for stealth aircraft under the assumption of 2D space, performing a rapid turning maneuver is a useful way to reduce the radar detection probability of an aircraft by changing the azimuth angle ...
Jingxin Guan +3 more
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The Radar Coverage Estimation under Multiple Antennas and Targets
Zanco Journal of Pure and Applied Sciences, 2019 Choosing the suitable antenna type for a particular application has importance in meeting the desired system objects. In this paper the comparative studies between three different types of antenna, which are phased array, planar array and parabolic ...
Arazoo Mustafa Aziz
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Photonics, 2021 To study the radar characteristics of the tiltrotor aircraft when considering rotor rotation and tilting actions, a dynamic calculation method (DCM) based on physical optics and physical theory of diffraction is presented. The results show that the radar
Zeyang Zhou +3 more
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On the radar cross section of dragons
URSI Radio Science Bulletin, 2021 An assessment is given of the possibility of detecting and recognizing dragons based on their radar cross section.
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