Results 11 to 20 of about 1,471,692 (268)

A High-Gain Circularly Polarized Magnetoelectric Dipole Antenna Array for Millimeter-Wave Applications [PDF]

open access: yesSensors
A high-gain circularly polarized (CP) magnetoelectric dipole (ME-dipole) radiating element is demonstrated at a millimeter-wave (MMW) 5G band of 37–43.5 GHz.
Jun Xiao   +5 more
doaj   +2 more sources

Compact Bent-Corner Orthogonal Beam Switching Antenna Module for 5G Mobile Devices [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2022
Typically, users engage with smartphones in either single-hand or dual-hand mode. To design antennas that operate at 28 GHz and have high pattern integrity for both modes of operation, an orthogonal beam switching module is required as a single phased ...
G. S. Karthikeya   +3 more
doaj   +1 more source

High-Efficiency Broadband Planar Array Antenna with Suspended Microstrip Slab for X-Band SAR Onboard Small Satellites

open access: yesSensors, 2021
In this paper, a high efficiency broadband planar array antenna is developed at X-band for synthetic aperture radar (SAR) on small satellites. The antenna is based on a multi-layer element structure consisting of two dielectric substrates made of Taconic
Kyei Anim   +3 more
doaj   +1 more source

High-Gain High-Field Fusion Plasma [PDF]

open access: yesScientific Reports, 2015
AbstractA Faraday wheel (FW)—an electric generator of constant electrical polarity that produces huge currents—could be implemented in an existing tokamak to study high-gain high-field (HGHF) fusion plasma, such as the Experimental Advanced Superconducting Tokamak (EAST).
openaire   +2 more sources

A Dual-Band High-Gain Subwavelength Cavity Antenna with Artificial Magnetic Conductor Metamaterial Microstructures

open access: yesMicromachines, 2021
This paper presents dual-band high-gain subwavelength cavity antennas with artificial magnetic conductor (AMC) metamaterial microstructures. We developed an AMC metamaterial plate that can be equivalent to mu-negative metamaterials (MNMs) at two ...
Guang Lu   +7 more
doaj   +1 more source

A High-Gain Nonlinear Observer With Limited Gain Power [PDF]

open access: yesIEEE Transactions on Automatic Control, 2015
6 pages, 2 ...
ASTOLFI, DANIELE, MARCONI, LORENZO
openaire   +2 more sources

Gain and Dispersion Focusing in a High Gain Laser [PDF]

open access: yesApplied Optics, 1972
The transverse modes of a laser resonator containing a medium with a strong radial gain profile differ greatly from the modes of a similar resonator containing a low gain medium. Focusing and defocusing effects result from the gain profile and from the associated dispersion profile. The dispersion focusing causes an asymmetry in the power output as the
Casperson, Lee W., Yariv, Amon
openaire   +2 more sources

High‐gain polarization conversion metasurface

open access: yesETRI Journal, 2019
A novel analytical method based on the cavity mode theory to design a metasurface (MS) is proposed in this study. We carefully analyzed the phase and amplitude characteristics of the incident wave and transmitted wave, and successfully designed a ...
Aixin Chen   +3 more
doaj   +1 more source

High-Gain Backward Lasing in Air [PDF]

open access: yesScience, 2011
Focused ultraviolet light creates a distant “lasing spark” in air that can then be used for remote detection.
Dogariu, Arthur   +3 more
openaire   +3 more sources

A Novel Non-Isolated High-Gain Non-Inverting Interleaved DC–DC Converter

open access: yesMicromachines, 2023
High-gain DC–DC converters are being drastically utilized in renewable energy generation systems, such as photovoltaic (PV) and fuel cells (FC). Renewable energy sources (RES) persist with low-level output voltage; therefore, high-gain DC–DC converters ...
Farhan Mumtaz   +4 more
doaj   +1 more source

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