Results 51 to 60 of about 4,037 (224)
Recent Advances in Programmable Metasurfaces and Meta‐Devices
Advanced Electronic Materials, EarlyView.Programmable metasurfaces enable various novel functionalities by dynamically tuning electromagnetic wavefronts. This article provides a comprehensive review of recent advances in microwave and terahertz programmable metasurfaces, covering electrical, thermal, optical, and mechanical control mechanisms.
Linda Shao +4 more
wiley +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.This work fabricated MOF‐based woven absorbing fabrics with dimensional engineering via a wet spinning strategy. The absorbing fabrics achieve a reflection loss of −51.47 dB at 2.9 mm, with an effective absorption bandwidth reaching 3.54 GHz. The absorbing fabrics can be freely bent, stretched, and folded, with individual fibers exhibiting a break ...
Zihao Yan +6 more
wiley +1 more source
RADAR CROSS SECTION (RCS) OF COMPLEX OBJECTS [PDF]
, 2009 This project covers the Radar Cross Section (RCS) by using MATLAB to simulate the objects. In this project will include introduction, RCS of the target characteristics, RCS of the Cut Cone, and RCS of the Sphere Cone. Using MATLAB to simulate the complex
Vo, Don D
core
AIP Advances, 2019 The analysis of radar target electromagnetic scattering characteristics is the basis of radar target detection, imaging and recognition. The high-frequency algorithm shooting and bouncing ray (SBR) method is used to calculate the radar cross section (RCS)
Junyang Zhou, Yiping Han
doaj +1 more source
Measurement of diffraction radar cross-section(RCS)
Electronics Letters, 2000 A technique is described for measuring the RCS of 2D (two-dimensional) diffracting sources. The measured and predicted diffraction RCS of a conducting halfplane edge and a gap in an otherwise infinite conducting plane are presented. The technique may be used to measure the diffraction coefficient of an impedance discontinuity.
openaire +1 more source
Purification and Properties of Polyvinyl Nitrate and Its Compatibility With Solid Oxidizers
Propellants, Explosives, Pyrotechnics, EarlyView.ABSTRACT Polyvinyl nitrate (PVN) is a nitrate‐ester energetic binder that can be produced directly from polyvinyl alcohol—a cheap commodity feedstock—thereby offering potential cost and supply‐chain advantages over binders based on nitrocellulose and other specialty polymers.
Stephen Spice +3 more
wiley +1 more source
Highly Accurate Calibration Target for Multiple Mode SAR Systems [PDF]
, 2010 The product quality with respect to radiometric accuracy of current and future space-borne synthetic aperture radar (SAR) systems depends on the grade of the utilized external calibration targets.
Looser, Philipp +4 more
core
Nanophotonics, Volume 15, Issue 15, 13 August 2026.Conceptual illustration of the retro‐reflective and transmissive metasurface (RRTM). The blue radar establishes communication with the UAV via the transmissive mode, whereas the purple surveillance radar acquires the status of friendly units through the retro‐reflective mode and the two modes operate simultaneously within the same decoupled aperture ...
Shulei Zhang +8 more
wiley +1 more source
Outdoor RCS Measurement Range for Spaceborne SAR Calibration Targets [PDF]
, 2007 The Microwaves and Radar Institute regularly performs calibration campaigns for spaceborne synthetic aperture radar (SAR) systems, among which have been X-SAR, SRTM, and ASAR.
Döring, Björn +2 more
core
Nanophotonics, Volume 15, Issue 14, 27 July 2026.A diversely time‐modulated metasurface enables broadband co‐modulation of fully polarimetric radar cross section and high‐resolution range profiles. By integrating anti‐parallel PIN diodes and programmable temporal coding, the platform dynamically redistributes scattering among HH/VV and HV/VH channels, generating tunable target weakening, false ...
Hantao Xu +9 more
wiley +1 more source