Results 81 to 90 of about 57,900 (293)
IEEE Open Journal of Antennas and PropagationThis article analyzes the current development status and requirements of wireless communication technology, and proposes a multibeam MM-wave antenna array with high-isolation for in-band full duplex (IBFD) wireless integrated access and backhaul ...
Tong Wu +4 more
doaj +1 more source
Choice of antenna geometry for microwave power transmission from solar power satellites [PDF]
A comparison is made between square and circular transmitting antennas for solar power satellite microwave power transmission. It is seen that the exclusion zone around the rectenna needed to protect populations from microwaves is smaller for a circular ...
Potter, Seth D.
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Method and apparatus for measuring distance [PDF]
, 1988 The invention employs a continuous wave radar technique and apparatus which can be used as a distance measuring system in the presence of background clutter by utilizing small passive transponders.
Kobayashi, Herbert S. +2 more
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One-Bit Precoding and Constellation Range Design for Massive MIMO with QAM Signaling
, 2018 The use of low-resolution digital-to-analog converters (DACs) for transmit precoding provides crucial energy efficiency advantage for massive multiple-input multiple-output (MIMO) implementation.
Liu, Ya-Feng, Sohrabi, Foad, Yu, Wei
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Advanced Engineering Materials, EarlyView.ZnS‐MXene‐TiO2 nanocomposite heterojunction for photocatalytic decomposition of this methylene blue dye (MB) greatly improves light absorption, charge separation, and active site area. Two‐dimensional MXene forms nanocomposites by easily combining them with 0D (quantum dots), 1D (tube and wire), 2D (plane and sheet), and 3D (particle and lamellar ...
Latiful Kabir +7 more
wiley +1 more source
IEEE AccessThis study aims to investigate the variability of exposure levels among road users generated in a realistic urban scenario by Vehicle-to-Vehicle (V2V) and Vehicle-to-Infrastructure (V2I) communication technologies operating at 5.9 GHz.
Martina Benini +4 more
doaj +1 more source
An investigation of pre-launch and in-flight STS range safety radio signal degradation and dropout [PDF]
The range safety system (RSS) transmitters operate at a frequency of 416.500 MHz. The transmitting antennas transmit left circularly polarized waves, and the shuttle range safety system (SRSS) receiving antennas onboard the shuttle vehicle receive left ...
Mcdonald, Malcolm W.
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Development of compact circular polarized antenna for WLAN application [PDF]
, 2019 Matching the polarization in both the transmitter and receiver antennas is important in terms of decreasing transmission losses. The use of circularly polarized antennas presents an attractive solution to achieve this polarization match which allows for ...
Ali Nor, Abdirahman Sidow
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Assessing Altered Coating Adhesion on Plasma‐Deoxidized Surfaces Under Oxygen‐Free Conditions
Advanced Engineering Materials, EarlyView.This study demonstrates the effectiveness of atmospheric pressure plasma pretreatment in modifying silicon and stainless steel surfaces to improve adhesion. Argon‐hydrogen plasma increases surface roughness and improves adhesion strength, whereas pure argon results in smoother surfaces and structural changes.
Selina Raumel +6 more
wiley +1 more source
Application of Space-Time Diversity/Coding For Power Line Channels [PDF]
, 2002 The purpose of the present work is to evaluate the application of space-time block codes to the transmission of digital data over the power-line communication channel (PLC).
Farrell, Paddy +3 more
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