Results 31 to 40 of about 2,154,008 (376)

Optimal radiation pattern synthesis of mutually coupled antenna array using an efficient compensation method

open access: yesIET Microwaves, Antennas & Propagation, 2021
An efficient compensation method is proposed for the reduction of mutual coupling among the elements of an antenna array using the optimum current amplitude excitation weights.
Avishek Das, Durbadal Mandal, Rajib Kar
doaj   +1 more source

Mutual optical injection in coupled DBR laser pairs [PDF]

open access: yes, 2009
We report an experimental study of nonlinear effects, characteristic of mutual optical coupling, in an ultra-short coupling regime observed in a distributed Bragg reflector laser pair fabricated on the same chip.
Avila   +34 more
core   +1 more source

Mutual Coupling and Unit Cell Aware Optimization for Reconfigurable Intelligent Surfaces [PDF]

open access: yesIEEE Wireless Communications Letters, 2020
We introduce algorithms for optimizing a single-input single-output reconfigurable intelligent surface (RIS) assisted system. The RIS is modeled by using an electromagnetic-compliant framework based on mutual impedances and its reconfigurability is ...
Xuewen Qian, M. Renzo
semanticscholar   +1 more source

Decoupling self-correcting method for non-uniform dual circular array

open access: yesThe Journal of Engineering, 2019
According to the structural characteristics of non-uniform dual circular array (NDCA), a new method is proposed to solve the problem of mutual coupling error.
Jiajia Zhang, Hui Chen, Weijian Liu
doaj   +1 more source

A Framework for Array Shape Reconstruction Through Mutual Coupling

open access: yesIEEE transactions on microwave theory and techniques, 2021
Flexible phased arrays potentially enable diverse applications not permitted by rigid systems; however, they introduce ambiguity in antenna element positions. If this position ambiguity can be overcome, flexible arrays can perform the full suite of array
Austin C. Fikes   +2 more
semanticscholar   +1 more source

Classification and Localization of Mixed Sources Using Uniform Circular Array under Unknown Mutual Coupling [PDF]

open access: yesRadioengineering, 2019
In this paper, the authors propose an effective classification and localization algorithm of mixed far-field and near-field sources using a uniform circular array under the unknown mutual coupling. In practice, the assumption of an ideal receiving sensor
K. Wang, L. Wang, J. Xie, M. Tao
doaj  

Performance of MIMO beamforming transmission scheme in the presence of mutual coupling [PDF]

open access: yes, 2010
This paper reports investigations into mutual coupling effects on performance of a beamforming transmission scheme of a multiple-input multipleoutput (MIMO) system operating under Rician channel conditions.
Bialkowski, Marek E.   +2 more
core   +1 more source

Mutual Coupling Reduction between Very Closely Spaced Microstrip Antennas Using CPW Structure

open access: yesMATEC Web of Conferences, 2016
An efficient H-plane mutual coupling reduction method is introduced for very closely placed dual-element microstrip antennas operating at 2.4GHz. A simple coplanar waveguide (CPW) structure is introduced in the ground, energy from one element is guided ...
Ma Xiao-zun   +3 more
doaj   +1 more source

Mutual coupling error modeling and correction of shared aperture interleaved sparse array antennas

open access: yesDianxin kexue, 2018
The shared aperture interleaved sparse array antenna is an effective way to implement a multi-function array antenna.The existing parameterized mutual coupling elimination methods are all developed for uniform array antennas.The mutual coupling matrix ...
Junming ZHUANG, Longjun LI
doaj   +2 more sources

Measurement of mutual inductance from frequency dependence of impedance of AC coupled circuit using digital dual-phase lock-in amplifier

open access: yes, 2008
We present a simple method to determine the mutual inductance $M$ between two coils in a coupled AC circuit by using a digital dual-phase lock-in amplifier.
Abragam A.   +8 more
core   +1 more source

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