Results 61 to 70 of about 647,166 (124)
Clutter Loss Modelling for Low Elevation Link Scenarios
International Journal of Antennas and Propagation, 2016 An analysis of the accuracy of several deterministic and semideterministic propagation models related to calculating clutter loss for low elevation links is presented.
Pavel Valtr +3 more
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Magnetostrictive tactile sensor of detecting friction and normal force for object recognition
International Journal of Advanced Robotic Systems, 2020 Tactile information is valuable in determining properties of objects that are inaccessible from visual perception. A new type of tangential friction and normal contact force magnetostrictive tactile sensor was developed based on the inverse ...
Bing Zhang +3 more
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Fundamental limitations on dielectrophoretic forces
New Journal of PhysicsThis work introduces a rigorous framework for systematically determining fundamental performance bounds in the context of negative dielectrophoresis.
Martin Zlabek +3 more
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Neutralization Line Decoupling Tri-Band Multiple-Input Multiple-Output Antenna Design
IEEE Access, 2020 A pair of tri-band multiple-input-multiple-output (MIMO) antennas with high isolation is investigated in this paper. The proposed antenna consists of two monopole antenna elements with an edge to edge spacing of 4 mm ($0.03~\lambda _{0}$ at 2.3 GHz). The
Ruipeng Liu +5 more
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Research on Inverter Integrated Reactive Power Control Strategy in the Grid-Connected PV Systems
Energies, 2017 In order to solve the problems caused by the susceptibility to changing weather conditions and the complex load conditions of photovoltaic (PV) systems, and the fact a single target inverter control strategy cannot effectively mitigate large voltage ...
Hua Li +3 more
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IET Microwaves, Antennas & PropagationA novel 4 × 4 Butler Matrix (BM) with continuously tunable phase covering phase range from −180° to 180° is proposed using substrate integrated waveguide technology. The proposed BM consists of two H‐plane hybrid couplers, two E‐plane hybrid couplers and
Junzhi Zhang +5 more
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Antenna Q-Factor Topology Optimization With Auxiliary Edge Resistivities
IEEE Open Journal of Antennas and PropagationThis paper presents a novel bi-level topology optimization strategy within the method-of-moments paradigm. The proposed approach utilizes an auxiliary variables called edge resistivities related to the Rao–Wilton–Glisson method-of-moments ...
Stepan Bosak, Miloslav Capek, Jiri Matas
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A New Propagation Channel Synthesizer for UAVs in the Presence of Tree Canopies
Remote Sensing, 2017 Following the increasing popularity of unmanned aerial vehicles (UAVs) for remote sensing applications, the reliable operation under a number of various radio wave propagation conditions is required.
Milan Kvicera +2 more
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AIP Advances, 2016 Amorphous and nanocrystalline alloys are now widely used for the cores of high-frequency transformers, and Litz-wire is commonly used as the windings, while it is difficult to calculate the resistance accurately.
Xiaojing Liu +5 more
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Feasibility of UAV Link Space Diversity in Wooded Areas
International Journal of Antennas and Propagation, 2013 Space diversity techniques provide an effective way to mitigate the deep fades in received power in a scattering environment. Space diversity influence on narrowband UAV links, which are unique due to the elevation angle and mutual position of a moving ...
Michal Simunek +2 more
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