Results 1 to 10 of about 289,146 (351)

Polarization‐Controlled Dual‐Programmable Metasurfaces [PDF]

open access: yesAdvanced Science, 2020
Programmable metasurfaces allow dynamic and real‐time control of electromagnetic (EM) waves in subwavelength resolution, holding extraordinary potentials to establish meta‐systems. Achieving independent and real‐time controls of orthogonally‐polarized EM
Xin Ge Zhang   +7 more
doaj   +3 more sources

Dual-polarization topological phases and phase transition in magnetic photonic crystalline insulator

open access: goldNew Journal of Physics, 2021
Two-dimensional topological photonic crystals have rapidly emerged as a recent and fascinating branch of photonic research. However, most of them were limited to a specific type of polarization, TE or TM polarization.
Xiang Xi   +5 more
doaj   +2 more sources

Extension of Scattering Power Decomposition to Dual-Polarization Data for Tropical Forest Monitoring

open access: yesRemote Sensing, 2023
A new scattering power decomposition method is developed for accurate tropical forest monitoring that utilizes data in dual-polarization mode instead of quad-polarization (POLSAR) data.
Ryu Sugimoto   +3 more
doaj   +1 more source

Design of a Dual-Polarization Dual-Wideband Planar Antenna [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2022
Wireless communication is a fundamental requirement because of its low cost, high flexibility and convenience, continuing improvements in speed and connectivity, and accessibility in remote areas.
A’isya Nur Aulia Yusuf   +1 more
doaj   +1 more source

A Group-Wise Feature Enhancement-and-Fusion Network with Dual-Polarization Feature Enrichment for SAR Ship Detection

open access: yesRemote Sensing, 2022
Ship detection in synthetic aperture radar (SAR) images is a significant and challenging task. However, most existing deep learning-based SAR ship detection approaches are confined to single-polarization SAR images and fail to leverage dual-polarization ...
Xiaowo Xu   +6 more
doaj   +1 more source

Pentaband Dual-Polarized Antenna for Multiservice Wireless Applications

open access: yesComputation, 2023
This paper presents a novel design for and an experimental study of a dual-polarized quad-port MIMO antenna. The design achieves resonance at five distinct frequency bands with reduced mutual coupling. The design includes a single annular ring slot, four
A. Ushasree, Vipul Agarwal
doaj   +1 more source

Millimeter-Wave High-Gain Dual-Polarized Flat Luneburg Lens Antenna with Reflection Cancellation

open access: yesApplied Sciences, 2023
Because of its good beam coverage and beam scanning abilities, the Luneburg lens (LL) is a promising multibeam antenna for the fifth-generation (5G) wireless communications.
Yan Zhang, Yinsen Luo, Ran Ji
doaj   +1 more source

Early-Season Crop Mapping on an Agricultural Area in Italy Using X-Band Dual-Polarization SAR Satellite Data and Convolutional Neural Networks

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Early-season crop mapping provides decision-makers with timely information on crop types and conditions that are crucial for agricultural management.
Giacomo Fontanelli   +10 more
doaj   +1 more source

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