Results 61 to 70 of about 458,352 (202)

A Wide-Scanning Metasurface Antenna Array for 5G Millimeter-Wave Communication Devices

open access: yesIEEE Access, 2022
In this paper we present a high-performance compact phased array antenna which is easy to integrate into mobile devices for 5G-and-beyond wireless telecommunications. The proposed design features high efficiency and wide-scan capabilities.
Gabriele Federico   +5 more
doaj   +1 more source

Wave impedance in reverberation chambers

open access: yes, 2014
This letter concerns probability density functions of the complex impedance of fields in mode-stirred reverberation chambers. They are based on the electric- and magnetic-field statistics derived for ideal reverberation conditions.
Nijenhuis, J., Serra, R.
core   +1 more source

Reconfigurable intelligent surface enabled programmable antenna chamber: Concept and preliminary experiments

open access: yesElectronics Letters
Antenna chambers are RF‐shielded enclosures which are required for antenna and radio performance measurements. Typically, anechoic chambers (ACs) are used for measuring directional metrics (e.g.
Yifa Li   +5 more
doaj   +1 more source

Exploring Uniformity of Reverberation Chambers: Insights from Antenna Reflection Coefficient

open access: yesEuropean Conference on Antennas and Propagation
Reverberation chambers are widely recognized as a time-efficient testing facility for various applications. The spatial uniformity based on the power transfer function is a critical characteristic of the chamber that affects the measurement uncertainty ...
N. Farid   +4 more
semanticscholar   +1 more source

Experimental Determination of Sound Transmission Loss Indices of a Rectangular Plate with Energy-Absorbing Coating [PDF]

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2015
This paper presents the results of experimental determination of sound transmission loss indices of a rectangular plate with energy-absorbing coating, which were obtained in the reverberation acoustic laboratory and intended to verify the data of ...
V.N. Paimushin   +2 more
doaj  

Statistical Analysis of Antenna Efficiency Measurements With Non-Reference Antenna Methods in a Reverberation Chamber

open access: yesIEEE Access, 2020
Reverberation chambers (RCs) have become a popular testing facility in antenna efficiency measurements. Unlike the standard reference antenna method, the non-reference antenna methods have been proposed to measure the antenna efficiency in the absence of
Wei Xue   +5 more
doaj   +1 more source

MIMO Channel Capacity in 2D and 3D Isotropic Environments

open access: yesInternational Journal of Antennas and Propagation, 2012
We analyze theoretical distributions of MIMO channel capacity for different antennas in 2D and 3D statistically isotropic environments, which may be generated by multiprobe anechoic and reverberation chambers, respectively.
Ryan J. Pirkl, Kate A. Remley
doaj   +1 more source

Spatial auditory display for acoustics and music collections [PDF]

open access: yes, 2010
PhDThis thesis explores how audio can be better incorporated into how people access information and does so by developing approaches for creating three-dimensional audio environments with low processing demands.
Stewart, Rebecca
core   +3 more sources

Computational RF Dosimetry of Rodents Cohorts in a Realistic Reverberation Chambers at 900 MHz

open access: yesInternational Conference on Embedded and Multimedia Computing
Reverberation chambers (RCs) have been widely employed in bioelectromagnetic large-scale rodent bioassays, to investigate potential effects of lifetime RF exposures.
A. Faraone   +5 more
semanticscholar   +1 more source

Radar cross-section estimation in reverberation chambers

open access: yes, 2020
International audienceThis chapter is dedicated to recent advances in a rather unexplored range of applications. It deals with the ability of performing radar cross-section (RCS) measurements, using a reverberation chamber (RC).
Besnier, Philippe, Philippe Besnier
core   +1 more source

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