Results 31 to 40 of about 18,390 (268)

Minimal Rational Interpolation and its Application in Fast Broadband Simulation

open access: yesIEEE Access, 2019
Broad bandwidth simulation in frequency domain benefits from fast frequency sweep, and frequency-domain electromagnetic solvers are usually combined with asymptotic wave evaluation or interpolation techniques.
Jun Wei Wu, Tie Jun Cui
doaj   +1 more source

Millimeter-Wave Antennas for 5G [PDF]

open access: yes2018 11th Global Symposium on Millimeter Waves (GSMM), 2018
The fifth generation (5G) wireless communications systems have brought a growing need for various antennas, electrically small and large, low-gain and large-gain, also at millimeter wavelengths, and in many cases with beam steering or switching capability.
Zheng, Jianfang   +5 more
openaire   +2 more sources

Cylindrical Three-Dimensional Millimeter-Wave Imaging via Compressive Sensing

open access: yesInternational Journal of Antennas and Propagation, 2015
Millimeter-wave (MMW) imaging techniques have been used for the detection of concealed weapons and contraband carried by personnel. However, the future application of the new technology may be limited by its large number of antennas.
Guoqiang Zhao   +4 more
doaj   +1 more source

Flexible Beam Manipulations by Reconfigurable Intelligent Surface With Independent Control of Amplitude and Phase

open access: yesFrontiers in Materials, 2022
Reconfigurable intelligent surfaces (RISs) have attracted extensive attention in recent years due to their strong ability to improve and customize electromagnetic wave propagation channels in wireless communications.
Jing Cheng Liang   +4 more
doaj   +1 more source

Representing Quantum Information with Digital Coding Metasurfaces

open access: yesAdvanced Science, 2020
With the development of science and technology, the way to represent information becomes more powerful and diversified. Recent research on digital coding metasurfaces has built an alternative bridge between wave‐behaviors and information science ...
Guo Dong Bai, Tie Jun Cui
doaj   +1 more source

Wideband Single and Dual Linearly Polarized Magneto-Electric Dipole Array Antennas for 5G/6G Millimeter-Wave Applications

open access: yesIEEE Open Journal of Antennas and Propagation
A new taper-shaped linearly polarized (LP) magneto-electric (ME) dipole, excited by the U-shaped microstrip line through a coupling slot, is proposed in this paper. An ultra-wide simulated impedance bandwidth of 85% (20.5-50.6 GHz) and 1.5-dB gain
Lei Xiang   +9 more
doaj   +1 more source

A Fully Polarized Antenna Covering the Hemispherical Airspace

open access: yesIEEE Access, 2021
A fully polarized antenna has been proposed in this paper. The antenna is composed of four independent antennas, named X, Y, H, V. The simulation and measurement results verify the independent antenna radiation performance and the function of the fully ...
Jiashan Liu   +5 more
doaj   +1 more source

Multifunctional movable-type coding metasurface enabling reconfigurable diffractive neural networks

open access: yesLight: Science & Applications
Optical computing holds significant promise across diverse applications due to its low latency, power efficiency, and multidimensional processing capabilities. However, current diffraction neural networks (DNNs) generally lack reconfigurability, limiting
Zhicai Yu   +11 more
doaj   +1 more source

A Circularly-Polarized-Reconfigurable Patch Antenna With Liquid Dielectric

open access: yesIEEE Open Journal of Antennas and Propagation, 2021
A circularly-polarized-reconfigurable patch antenna based on fluidic control method is proposed in this paper. A liquid dielectric, ethyl acetate, is introduced to change the substrate of a patch antenna from homogeneous to inhomogeneous.
Zhe Chen   +4 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

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