Results 11 to 20 of about 56,406 (306)

Dual-Polarized Metasurface-Integrated Antenna for Integrated Imaging of LWIR Camera and SAR [PDF]

open access: yesMicromachines
The integrated imaging of LWIR cameras and SAR is one of the important directions of multi-sensor integration. In order to reduce the structural complexity of LWIR cameras and SAR-integrated imaging antenna, a dual-polarized metasurface-integrated ...
Jijian Hu   +3 more
doaj   +2 more sources

Enhanced Angle-of-Arrival and Polarization Parameter Estimation Using Localized Hybrid Dual-Polarized Arrays [PDF]

open access: yesSensors, 2022
The millimeter wave (mmWave) channel is dominated by line-of-sight propagation. Therefore, the acquisition of angle-of-arrival (AoA) and polarization state of the wave is of great significance to the receiver.
Xiaolu Yu   +4 more
doaj   +2 more sources

Two-Level Feature-Fusion Ship Recognition Strategy Combining HOG Features with Dual-Polarized Data in SAR Images

open access: yesRemote Sensing, 2023
Due to the inherent characteristics of synthetic aperture radar (SAR) imaging, SAR ship features are not obvious and the category distribution is unbalanced, which makes the task of ship recognition in SAR images quite challenging.
Hongtu Xie, Jinfeng He, Zheng Lu, Jun Hu
doaj   +1 more source

Conceptual Design of a Semi-Dual Polarized Monopulse Antenna by Computer Simulation

open access: yesApplied Sciences, 2023
Presented in this paper is a conceptual design by computer simulation of a monopulse reflector antenna with dual-circularly polarized sum patterns and linearly polarized azimuth and elevation difference patterns, which can be called a semi-dual polarized
Ayodeji Matthew Monebi   +4 more
doaj   +1 more source

Broadband and Dual-Polarized Terahertz Wave Anomalous Refraction Based on a Huygens’ Metasurface

open access: yesFrontiers in Materials, 2022
Terahertz wavefront manipulation is one of the key terahertz technologies. While few of the research works on terahertz wavefront manipulation has broadband and dual-polarized responses. Here a broadband dual-polarized Huygens’ metasurface is proposed to
Jia Ran   +6 more
doaj   +1 more source

Massive MIMO With Dual-Polarized Antennas

open access: yesIEEE Transactions on Wireless Communications, 2023
This paper considers a single-cell massive MIMO (multiple-input multiple-output) system with dual-polarized antennas at both the base station and users. We study a channel model that includes the key practical aspects that arise when utilizing dual-polarization: channel cross-polar discrimination (XPD) and cross-polar correlations (XPC) at the ...
Özgecan Özdogan, Emil Björnson
openaire   +2 more sources

Dual-band polarization conversions and optical diode based on bilayer T-shaped metamaterial

open access: yesResults in Physics, 2022
In this work, we propose a dual-band optical diode based on a bilayer T-shaped metamaterial. This optical diode can conveniently convert the x-polarized wave to y-polarized one at about 106 THz and convert the y-polarized to x-polarized wave at around ...
Ying-Hua Wang   +5 more
doaj   +1 more source

TWELVE-PORT DUAL-POLARIZED DUAL-BAND MIMO ANTENNA FOR FIFTH-GENERATION MOBILE DEVICES

open access: yesICTACT Journal on Communication Technology, 2021
This research article presents a twelve-port dual-band MIMO antenna for 5G and WLAN-enabled user equipment with dual-polarization characteristics. Both the operating frequencies are of sub-6GHz band centered at 3.6GHz and 5.5GHz respectively that are ...
Jitendra Vaswani, Archana Agarwal
doaj   +1 more source

A Mutiparameter Joint Estimation Algorithm for Dual-Polarized Cylindrical Conformal Array in the Presence of Mutual Coupling

open access: yesInternational Journal of Antennas and Propagation, 2022
In this article, we proposed a multiparameter joint estimation algorithm based on the dual-polarized cylindrical conformal array (DCCA) in the presence of mutual coupling.
Chao Liu, Feiyang Zhou
doaj   +1 more source

A dual-polarized quasi-optical SIS mixer at 550 GHz [PDF]

open access: yes, 2000
In this paper, we describe the design, fabrication, and the performance of a low-noise dual-polarized quasi-optical superconductor-insulator-superconductor (SIS) mixer at 550 GHz.
Chattopadhyay, Goutam   +3 more
core   +1 more source

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