Results 81 to 90 of about 2,154,008 (376)

A Metasurface Superstrate for Mutual Coupling Reduction of Large Antenna Arrays

open access: yesIEEE Access, 2020
In this paper, a $\varepsilon $ -negative metasurface superstrate is proposed for mutual coupling reduction of large antenna arrays. Unlike the previous decoupling metasurface works that are mostly confined to two-ports antennas, the proposed decoupling
Jiazhi Tang   +6 more
semanticscholar   +1 more source

Dynamic Precipitation during High‐Pressure Torsion of a Magnesium–Manganese Alloy

open access: yesAdvanced Engineering Materials, EarlyView.
An ultrafine‐grained alloy is produced by high‐pressure torsion of solutionized Mg–1.35 wt% Mn. Precipitation of nanometer‐scale Mn particles during deformation provides pinning sites. This prevents the formation of a bimodal grain structure and results in a finer grain size than for pure Mg.
Julian M. Rosalie, Anton Hohenwarter
wiley   +1 more source

Evidence for two-electron processes in the mutual neutralization of O- with O+ and N+ at Subthermal Collision Energies

open access: yes, 2018
We have measured total absolute cross sections for the Mutual Neutralization (MN) of O- with O+/N+. A fine resolution (of about 50 meV) in the kinetic energy spectra of the product neutral atoms allows unique identification of the atomic states ...
Cederquist, H.   +9 more
core   +1 more source

Adaptable Tile‐Based Pneumatic Origami through Structurally Coupled Localized Actuation

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents tile‐based pneumatic origami structures with rigid tiles and flexible fabric creases, achieving adaptable properties including morphing shape, selective multistability, and tunable stiffness. Independently pressurized folding bladders at each crease enable structurally coupled localized actuation of origami structures.
Tiantian Li, Jonathan Luntz, Diann Brei
wiley   +1 more source

Minimizing Mutual Coupling

open access: yes, 2010
Disclosed herein are techniques, systems, and methods relating to minimizing mutual coupling between a first antenna and a second antenna. In one implementation, a plurality of antennas and at least one tuning module are provided. A control module may be coupled to the tuning module.
Knudsen, Mikael Bergholz   +5 more
openaire   +3 more sources

On the Mutual Coupling Between Circular Resonant Slots [PDF]

open access: yes, 2007
For near- and far-field microwave imaging purposes, array of circular resonant slots can be utilized to sample the electric field at a given reference plane.
Abou-Khousa, M. A.   +2 more
core   +2 more sources

Mutual Information and Optimality of Approximate Message-Passing in Random Linear Estimation

open access: yes, 2020
We consider the estimation of a signal from the knowledge of its noisy linear random Gaussian projections. A few examples where this problem is relevant are compressed sensing, sparse superposition codes, and code division multiple access. There has been
Barbier, Jean   +3 more
core   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé   +5 more
wiley   +1 more source

Self-Tuning Synthesis Filter against Mutual Coupling and Interferences for GNSS and Its Implementation on Embedded Board

open access: yesEURASIP Journal on Advances in Signal Processing, 2010
Traditional spatial-temporal adaptive signal processing techniques are often applied to conduct narrowband and wideband interferences. However, its mitigation performance degrades greatly due to mutual coupling.
Chung-Liang Chang
doaj   +2 more sources

Mutual Coupling Compensation in Receiving Antenna Arrays

open access: yes2020 International Applied Computational Electromagnetics Society Symposium (ACES), 2020
Mutual coupling compensation in uniform linear and circular receiving antenna arrays of thin wire dipoles is presented. It was observed that the mutual impedance is independent of the incident angle and depends solely on the geometry of the array. By using only one measurement, decoupling matrix is computed and direction of arrival is estimated.
Khan, Sana   +3 more
openaire   +1 more source

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