Results 11 to 20 of about 75,278 (248)

Scattering Mechanism Extraction by a Modified Cloude-Pottier Decomposition for Dual Polarization SAR

open access: yesRemote Sensing, 2015
Dual polarization is a typical operational mode of polarimetric synthetic aperture radar (SAR). However, few studies have considered the scattering mechanism extraction of dual-polarization SARs.
Kefeng Ji, Yonghui Wu
doaj   +1 more source

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

open access: yesNew 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   +1 more source

Physical Layer Secure Transmission Based on Fast Dual Polarization Hopping in Fixed Satellite Communication

open access: yesIEEE Access, 2017
A fast dual polarization hopping (FDPH) system is designed to enhance the physical layer secure transmission in fixed down-link satellite communications. In order to prevent the eavesdropper from detecting transmitted signals, a pair of dual polarization
Xiaokai Zhang   +2 more
doaj   +1 more source

Dual-Band Dual-Linear Polarization Reflectarray for mmWaves/5G Applications

open access: yesIEEE Access, 2020
A dual-band dual-linear polarization reflectarray configuration is developed for future 5G cellular applications. A single layer unit cell including two pairs of miniaturized fractal patches is designed to operate at two distinct frequencies within the ...
Sandra Costanzo   +3 more
doaj   +1 more source

A THz fiber polarization splitter based on anti-resonant hollow-core fiber with the asymmetric dual-suspended cores

open access: yesFrontiers in Physics, 2023
In this paper a novel THz fiber polarization splitter based on anti-resonant hollow-core fiber with asymmetric dual-suspended cores has been proposed. For the proposed polarization splitter, the ultra-low confinement loss and great polarization splitting
Yipeng Lu   +9 more
doaj   +1 more source

Dual-polarized UWB antenna array

open access: yes2009 IEEE International Conference on Ultra-Wideband, 2009
The paper describes a dual-polarized antenna array for Impulse Radio Ultra Wideband (IR-UWB) applications. Firstly a brief description of the single radiator is given. Next the prototype is presented and measured data is compared with the simulated one. The linear array consisting of four components achieves a very narrow mean 3 dB beam width, which is
Adamiuk, G.   +3 more
openaire   +3 more sources

Assessing Single-Polarization and Dual-Polarization TerraSAR-X Data for Surface Water Monitoring

open access: yesRemote Sensing, 2018
Three synthetic aperture radar (SAR) data classification methodologies were used to assess the ability of single-polarization and dual-polarization TerraSAR-X (TSX) data to classify surface water, including open water, ice, and flooded vegetation.
Katherine Irwin   +4 more
doaj   +1 more source

Polarization‐Controlled Dual‐Programmable Metasurfaces

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   +1 more source

A Microstrip Antenna Achieves Dual Polarization Conversion by Rotating Metasurface

open access: yesIEEE Access
To expand the channel capacity of a traditional single-polarization reconfigurable antenna, a design method for a dual-polarization reconfigurable microstrip antenna loaded with a passive metasurface was proposed.
Bo Wu   +6 more
doaj   +1 more source

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

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   +1 more source

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