Results 11 to 20 of about 2,172,741 (304)

A Compact Three-Port Antenna With Enhanced Inter-Port Isolation for Polarization and Pattern Diversity

open access: yesIEEE Access, 2023
This paper presents a compact three-port antenna design suitable for use in mobile radio systems that require polarization and pattern diversity. The antenna design utilizes a shorted bow-tie patch split in half with an air gap and a top-loaded two ...
Jihun Choi, Fikadu T. Dagefu
doaj   +1 more source

UWB MIMO antenna with hybrid pattern and polarization diversity [PDF]

open access: yesJournal of Engineering Science and Military Technologies, 2021
This study introduces a detailed design architecture and analysis of amodified half disc monopole Ultra-Wideband (UWB) (3.110.6- GHz)antenna elementused to build a multiple-input multiple-output MIMOwith extra hybrid polarization and radiation pattern ...
Abdallah Yousef   +3 more
doaj   +1 more source

Dual-Band End-Fire Four-Element MIMO Antenna Array Using Split-Ring Structure for mm-Wave 5G Applications

open access: yesIEEE Access, 2023
This paper presents a dual-band split-ring structure that provides end-fire radiation characteristics for multi-input multi-output (MIMO) mm-wave 5G applications.
Mohamed Aboualalaa, Islam Mansour
doaj   +1 more source

Circular Polarization Diversity Implementation for Correlation Reduction in Wideband Low-Cost Multiple-Input-Multiple-Output Antenna

open access: yesIEEE Access, 2020
In this paper, a multiple-input-multiple-output (MIMO) antenna featuring circular polarization diversity, and designed on a common coplanar ground is presented.
Ubaid Ullah   +3 more
doaj   +1 more source

Polar Coded Diversity on Block Fading Channels Via Polar Spectrum [PDF]

open access: yesIEEE Transactions on Signal Processing, 2021
Due to the advantage of capacity-achieving, polar codes have been extended to the block fading channel whereas most constructions involve complex iterative-calculation. In this paper, we establish a systematic framework to analyze the error performance of polar codes in the case of block mapping and random mapping. For both the mappings, by introducing
Kai Niu 0001, Yan Li 0034
openaire   +4 more sources

Birefringence Variation Independent Fiber-Optic Current Sensor Using Real-Time SOP Measurement

open access: yesIEEE Photonics Journal, 2017
We propose a birefringence variation independent fiber-optic current sensor based on polarization diversity and a real-time state of polarization measurement technique.
Yinping Liu, Lin Ma, Zuyuan He
doaj   +1 more source

Macrophage Diversity and Polarization in Atherosclerosis [PDF]

open access: yesArteriosclerosis, Thrombosis, and Vascular Biology, 2009
Diversity and plasticity are hallmarks of mononuclear phagocytes, which are reflected in plaque formation and evolution. Different monocyte subsets, which differentially contribute to plaque infiltration and to atherosclerosis complications, have been identified.
Alberto, Mantovani   +2 more
openaire   +4 more sources

Linguistic diversity and redistribution [PDF]

open access: yes, 2009
This paper investigates the effect of linguistic diversity on redistribution in a broad cross-section of countries. We use the notion of "linguistic distances" and show that the commonly used fractionalization index, which ignores linguistic distances ...
Ortuño, Ignacio   +2 more
core   +1 more source

Interference-Aided Detection of Subthreshold Signal Using Beam Control in Polarization Diversity Reception [PDF]

open access: yes, 2018
The present letter discusses a detectability enhancement induced by co-channel interference signals in the polarization diversity reception. The challenge is the detection of weak (subthreshold) signals, the level of which is less than the detection ...
Yamazato, Takaya   +5 more
core   +1 more source

Impact of Amplitude and Phase Imbalance on Dual Differential Fed Patch Antenna With High Isolation

open access: yesIEEE Open Journal of Antennas and Propagation, 2022
In this paper, the impact of amplitude and phase imbalance on a proposed dual differential fed patch antenna is analyzed in the context of system effective reflection coefficient and axial ratio (AR).
Wenyu Zhou   +6 more
doaj   +1 more source

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