Results 11 to 20 of about 3,465,717 (304)
Design of 94GHz Dual-Polarization Antenna Fed by Diagonal Horn for Cloud Radars
IEEE Access, 2022 In this paper, a 94 GHz dual-polarization high-isolation cassegrain antenna feed by a diagonal horn antenna is designed. The antenna consists of a D = 540 mm main reflector, sub-reflector, and dual-port dual-polarization diagonal horn feed antenna.
Jie Wang +4 more
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Journal of Infection and Public Health, 2020 Crimean-Congo haemorrhagic fever (CCHF) is a widely distributed tick-borne disease. In Spain, the disease has emerged as outbreak associated with high-risk exposures. Our goal was to evaluate the prevalence of antibodies against the CCHF virus (CCHFV) in
Pello Latasa +19 more
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Compact, Isolated High-velocity Clouds [PDF]
, 2004 26 pages, 8 (low res.) png figs., to appear in the book "High Velocity Clouds" Eds.
Burton, W. B., Braun, R., de Heij, V.
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Mathematics, 2022 A novel ultra-wideband (UWB) KAYI-shaped and common KITE-shaped ground plane tri-port antenna is proposed. The proposed research work has a small size of (30 × 30 × 1.6 mm3).
Shahid Basir +4 more
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Isolation for high-risk patients [PDF]
Postgraduate Medical Journal, 1976 Summary Standard isolation accommodation provides adequate protection against the infectious diseases prevalent in the U.K. but higher standards are necessary for more dangerous infections imported from overseas. These may be provided reasonably cheaply by modifying existing wards but staff are still exposed to risk.
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Genetic and phenotypic divergence in an island bird: isolation by distance, by colonization or by adaptation? [PDF]
, 2014 Discerning the relative roles of adaptive and nonadaptive processes in generating differences among populations and species, as well as how these processes interact, is a fundamental aim in biology.
Dawson, Deborah A. +4 more
core +2 more sources
A Compact Dual Circularly Polarized Antenna With Wideband Operation and High Isolation
IEEE Access, 2020 This paper presents a dual-sense circularly polarized (CP) antenna with compact size, high isolation, and wideband characteristics. The antenna consists of a microstrip patch, an array of parasitic metal plates positioned around the patch, and a 90 ...
Huy Hung Tran +2 more
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Performance Enhancement of MIMO Patch Antenna Using Parasitic Elements
IEEE Access, 2021 This paper investigates the effects of parasitic elements on the performance of MIMO patch antenna. Multiple square parasitic elements are added in close proximity to each of the rectangular patch elements.
Huy Hung Tran, Nghia Nguyen-Trong
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High-Isolation Eight-Element MIMO Array for 5G Smartphone Applications
IEEE Access, 2019 In this paper, an eight-element MIMO array for 5G smartphone applications in the 3.45-GHz band (3.3-3.6 GHz) is presented. The array consists of two types of four-antenna arrays (U-shaped and L-shaped coupled-fed loop elements), which are symmetrically ...
Wen Jiang, Bo Liu, Yangqiang Cui, Wei Hu
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A Deployable Wideband Differential-Fed Dual-Polarized Patch Antenna Array
IEEE Open Journal of Antennas and Propagation, 2023 In this paper, a deployable wideband differential-fed dual-polarized high-isolation patch antenna array is proposed. To achieve dual polarization, every element has two pairs of differential ports.
Ankang Liu +3 more
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