Results 41 to 50 of about 77,272 (302)

Fast Adaptive Beamforming with Smart Antenna for Radio Frequency Repeater

open access: yesMATEC Web of Conferences, 2016
We present a fast adaptive beamforming null algorithm with smart antenna for Radio Frequency Repeater (RFR). The smart antenna system is realized by a Direction Of Arrival (DOA) Estimator, whose output is used by an adaptive beamforming algorithm to ...
Wang Chaoqun, Wei Guohua, Wang Teng
doaj   +1 more source

Biodegradable dual semicircular patch antenna tile for smart floors [PDF]

open access: yes, 2019
A dual semicircular microstrip patch antenna implemented on a biodegradable substrate is presented for operation in the [863-873] MHz and [2.4-2.5] GHz frequency bands.
Agneessens, Sam   +6 more
core   +1 more source

Hardware implementation of smart antenna systems [PDF]

open access: yesAdvances in Radio Science, 2006
Smart antenna systems attract a lot attentions now and believably more in the future, as it can increase the capacity of mobile communication systems dramatically.
H. Wang, M. Glesner
doaj  

Development of Monitoring Methods for a GPS based Smart Antenna System

open access: yesACI Avances en Ciencias e Ingenierías, 2013
One of the key parameters in the processing system of a smart antenna system is the direction of arrival of the signal of interest (DOA). DOA’s estimation traditionally performed spectral analysis on the signal received by the antenna array ...
Francisco Cuesta, René P. Játiva E.
doaj   +1 more source

The next generation textile antennas based on substrate integrated waveguide technology [PDF]

open access: yes, 2014
Textile antennas for body-worn applications have some very specific requirements and needs. From an electrical engineer's point of view, good radiation characteristics and impedance matching to the active electronics are important.
Agneessens, Sam   +4 more
core   +2 more sources

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

open access: yesFEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Model of Handover and Traffic Based on Cellular Geometry with Smart Antenna

open access: yesInternational Journal of Antennas and Propagation, 2014
Based on the application of smart antennas in cellular mobile communications, this paper introduces the impact of the width of the antenna beams playing on the dwell time probability density function in cellular geometry with smart antenna. The research
Zufan Zhang, Jie Zhang, Shaohui Sun
doaj   +1 more source

THE FUZZY LOGICAL CONTROLLER BASED ENERGY STORAGE AND CONSERVATION MODEL TO ACHIEVE MAXIMUM ENERGY EFFICIENCY IN MODERN 5G COMMUNICATION

open access: yesICTACT Journal on Communication Technology, 2022
Energy conservation and energy efficiency for smart antenna design is the reduction of energy consumption per unit of service or product in 5G Communication without reducing production quality and quantity.
B. Gopi, G. Ramesh, J. Logeshwaran
doaj   +1 more source

Adaptive antennas at the mobile and base stations in an OFDM/TDMA system [PDF]

open access: yes, 2001
In recent years, several smart antenna systems have been proposed and demonstrated at the base station (BS) of wire-less communications systems, and these have shown that significant system performance improvement is possible.
Cheng, RSK, Wong, KK
core   +1 more source

Whole‐Body Pattern of Muscle Degeneration and Progression in Sarcoglycanopathies

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To characterize whole‐body intramuscular fat distribution pattern in patients with sarcoglycanopathies and explore correlations with disease severity, duration and age at onset. Methods Retrospective, cross‐sectional, multicentric study enrolling patients with variants in one of the four sarcoglycan genes who underwent whole‐body ...
Laura Costa‐Comellas   +39 more
wiley   +1 more source

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