Results 21 to 30 of about 2,797,043 (365)
Design of a 2-Bit wide-angle coding metasurface for bistatic RCS reduction
Frontiers in Materials, 2022 A 2-bit wide-angle coding metasurface is proposed to decrease the bistatic radar cross section (RCS) in this study. Each meta-atom of the designed coding metasurface is composed of a wide-beamwidth microstrip antenna whose feeding port is loaded with an ...
Yi Fei Huang +3 more
doaj +1 more source
Smart sensing metasurface with self-defined functions in dual polarizations
Nanophotonics, 2020 For the intelligence of metamaterials, the -sensing mechanism and programmable reaction units are two important components for self-recognition and -determination. However, their realization still face great challenges.
Ma Qian +7 more
doaj +1 more source
Remote Sensing, 2022 Passive multi-frequency microwave sensors are indispensable instruments for worldwide environmental monitoring. However, they often suffer from the issues of poor spatial resolution and the original land–sea transition zone data are contaminated severely.
Weidong Hu +6 more
doaj +1 more source
Millimeter-wave achromatic half-wave plate [PDF]
Applied Optics, 2005 In print - Applied Optics, 14 pages, 7 ...
Hanany, S. +5 more
openaire +3 more sources
MS-YOLO: Object Detection Based on YOLOv5 Optimized Fusion Millimeter-Wave Radar and Machine Vision
IEEE Sensors Journal, 2022 Millimeter-wave radar and machine vision are both important means for intelligent vehicles to perceive the surrounding environment. Aiming at the problem of multi-sensor fusion, this paper proposes the object detection method of millimeter-wave radar and
Yunyun Song +3 more
semanticscholar +1 more source
Design of high-performance millimeter wave and sub-millimeter wave quasi-optical isolators and circulators [PDF]
, 2007 Faraday rotators using permanently magnetized ferrite materials are used to make quasi-optical isolators and circulators at millimeter wave and sub-millimeter wave frequencies that have far higher performance than their waveguide equivalents.
Goy, P +7 more
core +1 more source
High-power photodiodes in millimeter-wave photonic systems [PDF]
, 2022 Prather, Dennis W.Wireless links prioritize wide information bandwidths, carrier flexibility, and low size, weight, and power (SWaP). Demand for these characteristics is driven by the desire to deploy transmit and receive architectures almost anywhere ...
Carey, Victoria Ashley
core +1 more source
Millimeter Wave and Terahertz Urban Microcell Propagation Measurements and Models [PDF]
IEEE Communications Letters, 2021 Comparisons of outdoor Urban Microcell (UMi) large-scale path loss models, root mean square (RMS) delay spreads (DS), angular spreads (AS), and the number of spatial beams for extensive measurements performed at 28, 38, 73, and 142 GHz are presented in ...
Yunchou Xing, T. Rappaport
semanticscholar +1 more source
Millimeter-Wave MMICs and Applications [PDF]
, 2003 As device technology improves, interest in the millimeter-wave band grows. Wireless communication systems migrate to higher frequencies, millimeter-wave radars and passive sensors find new solid-state implementations that promise improved performance ...
Morgan, Matthew Alexander
core +1 more source