Results 11 to 20 of about 536,235 (301)
Sensors, 2021 This paper presents a new configuration of a slotted waveguide antenna (SWA) array aimed at the X-band within the desired band of 9.38~9.44 GHz for shipboard marine radars.
Kyei Anim +2 more
doaj +1 more source
Multi-Person 2-D Positioning Method Based on 77 GHz FMCW Radar
Micromachines, 2023 As the world’s population ages, technologies that enable long-term non-contact monitoring of patients are of great research significance. For this purpose, we propose a multi-person 2-D positioning method based on a 77 GHz FMCW radar.
Xiaohong Huang +3 more
doaj +1 more source
Integration of Scanning Probes and Ion Beams [PDF]
Nano Letters, 2005 We report the integration of a scanning force microscope with ion beams. The scanning probe images surface structures non-invasively and aligns the ion beam to regions of interest. The ion beam is transported through a hole in the scanning probe tip. Piezoresistive force sensors allow placement of micromachined cantilevers close to the ion beam lens ...
Persaud, A. +5 more
openaire +3 more sources
Phase and micromotion of Bose-Einstein condensates in a time-averaged ring trap [PDF]
, 2018 Rapidly scanning magnetic and optical dipole traps have been widely utilised to form time-averaged potentials for ultracold quantum gas experiments. Here we theoretically and experimentally characterise the dynamic properties of Bose-Einstein condensates
Baker, Mark A. +5 more
core +2 more sources
Direct writing of ferroelectric domains on the x- and y-faces of lithium niobate using a continuous wave ultraviolet laser [PDF]
, 2011 Ferroelectric domain reversal has been achieved by scanning a tightly focused, strongly absorbed ultraviolet laser beam across the x- and y-faces of lithium niobate crystals. The domains were investigated by piezoresponse force microscopy.
Buse, K. +5 more
core +1 more source
Golden beam data for proton pencil-beam scanning [PDF]
Physics in Medicine and Biology, 2012 Proton, as well as other ion, beams applied by electro-magnetic deflection in pencil-beam scanning (PBS) are minimally perturbed and thus can be quantified a priori by their fundamental interactions in a medium. This a priori quantification permits an optimal reduction of characterizing measurements on a particular PBS delivery system.
Clasie, B. +7 more
openaire +3 more sources
Design and Implementation of 5.8 GHz RF Wireless Power Transfer System
IEEE Access, 2021 In this paper, we present a 5.8 GHz radio-frequency (RF) wireless power transfer (WPT) system that consists of 64 transmit antennas and 16 receive antennas.
Je Hyeon Park +4 more
doaj +1 more source
Scientific Reports, 2022 As optical phased arrays (OPAs), used as solid-state beam scanning elements, swiftly stride towards higher efficiency and faster scanning speed, the line beam scanner is emerging as a viable substitute for its counterpart relying on point-beam ...
Bishal Bhandari +6 more
doaj +1 more source
Millimeter-Wave High-Gain Dual-Polarized Flat Luneburg Lens Antenna with Reflection Cancellation
Applied Sciences, 2023 Because of its good beam coverage and beam scanning abilities, the Luneburg lens (LL) is a promising multibeam antenna for the fifth-generation (5G) wireless communications.
Yan Zhang, Yinsen Luo, Ran Ji
doaj +1 more source
On-dimensional off-chip beam steering and shaping using optical phased arrays on silicon-on-insulator [PDF]
, 2011 Optical beam steering can find applications in several domains such as laser scanning, LiDAR (Light Detection And Ranging), wireless data transfer and optical switches and interconnects.
Karel Van Acoleyen +4 more
core +2 more sources