Results 1 to 10 of about 10,417,289 (320)
IEEE Open Journal of Antennas and PropagationThis paper describes a compact circularly polarized antenna designed for the 2.4GHz band with a gain of 15dBic designed for communication (uplink) with a geostationary amateur radio satellite Es’Hail-2 (QO-100).
Michal Cerveny, Pavel Hazdra
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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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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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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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Classical Electrodynamics in Quasi-Metric Space-Time
, 2020 The quasi-metric manifold $\cal N$ is equipped with two one-parameter families of metric tensors ${\bf {\bar g}}_t$ and ${\bf g}_t$, each parametrized by the global time function $t$.
Østvang, Dag
core
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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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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Design of Magnetic Coupling Mechanism with Different Primary and Secondary Coils for Maximum Output Power [PDF]
Journal of Electromagnetic Engineering and ScienceOutput power is an important performance metric related to static or quasi-static wireless power transfer (WPT). As an important component of WPT, the electrical parameters of a magnetic coupling mechanism (MCM) are directly related to its output ...
Zhongyu Dai +7 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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