Results 21 to 30 of about 220,305 (309)
Monostatic radar cross section of flying wing delta planforms
Engineering Science and Technology, an International Journal, 2017 The design of the flying wing and its variants shapes continues to have a profound influence in the design of the current and future use of military aircraft.
Sevoor Meenakshisundaram Vaitheeswaran +3 more
doaj +1 more source
International Journal of Antennas and Propagation, 2016 The first- and second-order bistatic high frequency radar cross sections of the ocean surface with an antenna on a floating platform are derived for a frequency-modulated continuous wave (FMCW) source.
Yue Ma, Weimin Huang, Eric W. Gill
doaj +1 more source
Ultra-Broad Band Radar Cross Section Reduction of Waveguide Slot Antenna with Metamaterials [PDF]
Radioengineering, 2016 To reduce the radar cross section of a waveguide slot antenna, a three-layer metamaterial is presented based on orthogonal double split-ring resonators. The absorption characteristics of three-layer metamaterial are demonstrated by simulation.
Qiang Fu +4 more
doaj
Terahertz Radar Cross Section Measurements Based on Millimeter-wave Converter
Leida xuebao, 2018 The measurement system has been built with Stepped Frequency Continuous Wave (SFCW) signal for Radar Cross Section (RCS) measurements in free-space at 220～330 GHz.
Wu Yang +3 more
doaj +1 more source
Full Physics Simulation Study of Guardrail Radar-Returns for 77 GHz Automotive Radar Systems
IEEE Access, 2018 Radar is one of the primary active safety sensors for advanced driver assistance systems. Autonomous vehicles will heavily rely on the ability of automotive radar systems to accurately identify crucial targets while filtering out false targets.
Ushemadzoro Chipengo
doaj +1 more source
Advanced Healthcare Materials, EarlyView.This review highlights recent advances in smart face masks that actively monitor breathing. By integrating humidity, gas, temperature, pressure, strain, and triboelectric sensors, these masks track key respiratory parameters in real time. The article summarizes sensor mechanisms, compares performance across studies, and discusses challenges and future ...
Negin Faramarzi +7 more
wiley +1 more source
Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain
Advanced Materials, EarlyView.A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha +14 more
wiley +1 more source
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
doaj +1 more source
DSN observations of Titan [PDF]
, 1992 When using Deep Space Station (DSS)-14 in a monostatic configuration, radar observations of Titan show that Titan is a diffuse reflector with a relative radar cross section of 0.14 +/- 0.03.
Goldstein, R. M., Jurgens, R. F.
core +1 more source
Advanced Materials, EarlyView.An overview of design principles and scalable fabrication strategies for multifunctional bio‐based packaging. Radiative cooling films, modified‐atmosphere films/membranes, active antimicrobial/antioxidant platforms, intelligent optical/electrochemical labels, and superhydrophobic surfaces are co‐engineered from material chemistry to mesoscale structure
Lei Zhang +6 more
wiley +1 more source