Results 31 to 40 of about 3,855 (302)

Effects of Mutual Coupling on Degree of Freedom and Antenna Efficiency in Holographic MIMO Communications

open access: yesIEEE Open Journal of Antennas and Propagation, 2023
The holographic multiple-input-multiple-output (MIMO) communications refer to the MIMO systems built with ultra-dense antenna arrays, whose channel models and potential applications have attracted increasing attentions recently.
Shuai S. A. Yuan   +3 more
doaj   +1 more source

Penggunaan S-Shaped Defected Ground Structure untuk Mereduksi Mutual Coupling pada Antenna Array Microstrip [PDF]

open access: yes, 2022
Dengan berkembangnya ilmu pengetahuan tentang telekomunikasi, 5G telah membuat banyak peneliti tertarik. Pita 26 GHz merupakan salah satu pita yang digunakan sebagai frekuensi gelombang milimeter untuk sinyal 5G.
Narendra, Abirama Dhesta
core  

A reconfigurable wideband and multiband antenna using dual-patch elements for compact wireless devices [PDF]

open access: yes, 2012
This is the post-print version of the Article. The official published version can be accessed from the link below - Copyright @ 2012 IEEEA reconfigurable wideband and multiband C-Slot patch antenna with dual-patch elements is proposed and studied.
AbuTarboush, HF   +26 more
core   +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

Mutual Coupling Effect in Unequally - Spaced Linear Antenna Array Performance

open access: yes, 2020
Unequally-spaced arrays can offer some advantages over equally-spaced arrays as follows: reducing the side-lobed level for the broadband array with an identical excitation coefficient.
Yamada, Yosihide   +2 more
core   +1 more source

Dual-Frequency Two-Element Antenna Array with Suppressed Mutual Coupling [PDF]

open access: yes, 2015
An efficient technique utilizing the defected ground structure (DGS) to suppress the mutual coupling effect of a dual-frequency microstrip antenna array is studied.
Nadia Media Rizka   +4 more
core   +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

Scattering characteristics of antennas in cyberspace

open access: yes工程科学学报, 2020
5G network technology can meet the high requirements of cyberspace development in the performance of communication platforms. Massive MIMO (multiple-input multiple-output) antenna array is one of the core technologies of 5G. The mutual coupling effect of
Jian-zhong CHAI   +4 more
doaj   +1 more source

Triangular Lattices for Mutual Coupling Reduction in Patch Antenna Arrays [PDF]

open access: yes, 2011
One of the issues in antenna arrays is the mutual coupling that occurs when two radiating elements are placed together. Mutual coupling can significantly degrade the performance of an antenna array.
Ahmed O. El-Rayis   +11 more
core   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy