Results 41 to 50 of about 766,658 (292)
Compact Dual Band Feed System for a Multifrequency Atmospheric Radar
IEEE Open Journal of Antennas and Propagation, 2022 The design, simulations and measurement results of a dual frequency feed horn operating at 35.75 GHz (Ka-band) and 94.05 GHz (W-band) are presented. The horn is designed to be used as a feed for a multifrequency atmospheric radar.
Srinivas Nagaraja +3 more
doaj +1 more source
An investigation of a frequency diverse array [PDF]
, 2009 This thesis presents a novel concept for focusing an antenna beam pattern as a function of range, time, and angle. In conventional phased arrays, beam steering is achieved by applying a linear phase progression across the aperture.
Antonik, P.
core
Optimal Antenna Allocation in MIMO Radars with Collocated Antennas [PDF]
IEEE Transactions on Aerospace and Electronic Systems, 2014 Submitted to IEEE Transactions on Aerospace and Electronic ...
Gorji, A. A. +3 more
openaire +2 more sources
Bone‐Inspired Recyclable Composites for Damage‐Tolerant Circular Materials
Advanced Functional Materials, EarlyView.Bone‐inspired architected composites are developed by combining osteon‐like reinforcements with a recyclable Elium thermoplastic matrix. The hierarchical architecture redirects cracks and promotes energy dissipation, while enabling recovery of intact, aligned, load‐bearing reinforcement units that retain their original stiffness, revealing a route ...
Alessandro Stagni +4 more
wiley +1 more source
Ultra Wideband Planar Microstrip Array Antennas for C-Band Aircraft Weather Radar Applications
International Journal of Antennas and Propagation, 2017 A miniaturized ultra wideband (UWB) planar array antennas for C-band aircraft weather RADAR applications is presented. Firstly, the effect of the ground plane is studied.
Abdellatif Slimani +3 more
doaj +1 more source
Leida xuebao, 2013 Combined with Frequency-Modulated Continuous-Wave (FMCW) technology, airborne forward-looking Synthetic Aperture Radar (SAR) with linear array antennas can obtain the image in front of the aircraft and also have the advantages of FMCW radar such as small
Zhang Ying-jie +3 more
doaj +1 more source
Compact 3D imaging radar based on FMCW driven frequency-scanning antennas
, 2022 5 S.In this paper the development of a wearable 3D FMCW radar sensor system for firefighters to enhance eyesight in smoky surroundings during hazardous situations is described.
Herschel, Reinhold +4 more
core +1 more source
Breaking the Surface: Buoyant Metal–Polymer Open–Cell Hybrid Lattice Metamaterials
Advanced Materials, EarlyView.Open‐cell metal–polymer lattice metamaterials that defy sinking. (a) Injection process of the polyurethane (PU) foam into the titanium (Ti‐6Al‐4V) hollow‐strut lattice creating the open‐cell Ti‐6Al‐4V+PU hybrid lattice, (b) flotation test of a hybrid lattice specimen, and (c) a digital representation and experimental validation of a marine buoy ...
Jordan Noronha +7 more
wiley +1 more source
Amplifier-Integrated Active Array Antennas for millimeter-Wave Radar
, 2023 Modern wireless systems, especially at millimeterwave, place increasingly stringent requirements on size, weight, power and cost (SWaP-C). In this talk we present an overview of our recent work on active beamsteering array antennas for mmwave sensing ...
Monni, S. +6 more
core
Advanced Materials, EarlyView.Environmental Synthesis Radar (ESR) evaluates the environmental impact of (early‐stage) multi‐step chemical syntheses, providing a holistic view by using 18 midpoint impact categories. Unlike conventional life‐cycle assessment (LCA) approaches, ESR reveals three complementary metrics: overall impact Vtotal, environmental hotspots VEF, and critical ...
Laura Plein +8 more
wiley +1 more source