Results 41 to 50 of about 2,282,353 (338)

A Low-Profile Decoupling Slot-Strip Array for 2 × 2 Microstrip Antenna

open access: yesIEEE Access, 2020
Two-dimensional antennas provide additional variables that can be used to control and shape the pattern, and widely used in engineering applications include tracking radar, communications, direction finding and many others.
Di Gao   +5 more
doaj   +1 more source

Beamforming analysis on a broadband antenna array for the Galileo system [PDF]

open access: yes, 2006
The objective of this work is to demonstrate, through simulation results, an optimized beamforming approach on an antenna array designed to operate at the Galileo frequency bands.
Heckler, Marcos Vinicio Thomas   +7 more
core   +1 more source

Mutual Coupling Effects for Radar Cross Section (RCS) of a Series-Fed Dipole Antenna Array

open access: yesInternational Journal of Antennas and Propagation, 2012
The estimation of RCS of a phased array depends on various parameters, namely, array geometry, operational frequency, feed network, mutual coupling between the antenna elements and so fourth.
H. L. Sneha, Hema Singh, R. M. Jha
doaj   +1 more source

Coupled Array of Diverse Elements for Wideband High Spherical Coverage

open access: yesIEEE Open Journal of Antennas and Propagation, 2023
We propose a flexible cluster array concept utilizing diverse antenna elements and the mutual coupling among them to improve the spherical coverage. This innovative approach can not only enhance the impedance matching but also improve the beamforming ...
Quangang Chen   +4 more
doaj   +1 more source

Fabrication Routes for Ionic Conducting Fiber Strain Sensors

open access: yesAdvanced Engineering Materials, EarlyView.
Ionic conducting fiber strain sensors (ICFSs) offer compliant, textile‐integrable sensing. Thus far, the commercialization of ICFSs has been constrained by fiber fabrication routes. This review provides a fabrication‐centric analysis of ICFSs correlating processing strategies with material properties and scalability.
Leo John Kershaw   +3 more
wiley   +1 more source

Bandwidth Enhancement of Antenna Arrays Utilizing Mutual Coupling between Antenna Elements

open access: yesInternational Journal of Antennas and Propagation, 2010
The mutual coupling effect between antenna elements on an array's bandwidth is investigated using scattering parameters instead of the mutual impedance. First, an approximate expression is derived for matched voltage standing wave ratio (VSWR) bandwidth ...
Min Wang, Wen Wu, Zhongxiang Shen
doaj   +1 more source

Calibration of directional mutual coupling for antenna arrays

open access: yesDigital Signal Processing, 2017
Abstract Mutual coupling (MC) is one of the major error sources in array signal processing. The previous methods mostly assume that the MC is direction-independent and it is modeled by a single MC matrix. However, this is not valid in a practical scenario where the effect of MC differs for the source signals incoming from different directions.
openaire   +1 more source

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

open access: yesAdvanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke   +3 more
wiley   +1 more source

Mutual Coupling Reduction Techniques in Electronic Steering Antennas in X Band [PDF]

open access: yes, 2011
This work provides the development of an antenna for satellite communications onboard systems based on the recommendations ITU-R S.580-6 [1] and ITU-R S.465-5 [2].
Fernández González, José Manuel   +3 more
core  

Mutual Coupling in Phased Arrays: A Review

open access: yesInternational Journal of Antennas and Propagation, 2013
The mutual coupling between antenna elements affects the antenna parameters like terminal impedances, reflection coefficients and hence the antenna array performance in terms of radiation characteristics, output signal-to-interference noise ratio (SINR),
Hema Singh, H. L. Sneha, R. M. Jha
doaj   +1 more source

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