Results 31 to 40 of about 984,557 (317)

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

Design of high-performance millimeter wave and sub-millimeter wave quasi-optical isolators and circulators

open access: yes, 2007
Faraday rotators using permanently magnetized ferrite materials are used to make quasi-optical isolators and circulators at millimeter wave and sub-millimeter wave frequencies that have far higher performance than their waveguide equivalents.
Goy, P   +7 more
core   +1 more source

Ultra-Broadband Directional Couplers Using Microstrip with Dielectric Overlay in Millimeter-Wave Band

open access: yes, 2011
Nowadays, millimeter-wave systems are being a key factor to develop wide band applications. In this paper, a directional coupler in millimeter-wave band using dielectric overlay is presented.
Alonso Montes, José I.   +4 more
core   +1 more source

High-power photodiodes in millimeter-wave photonic systems

open access: yes, 2022
Prather, Dennis W.Wireless links prioritize wide information bandwidths, carrier flexibility, and low size, weight, and power (SWaP). Demand for these characteristics is driven by the desire to deploy transmit and receive architectures almost anywhere ...
Carey, Victoria Ashley
core   +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

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

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

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

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

Decoupling of Dual-Polarized Antenna Arrays Using Non-Resonant Metasurface

open access: yesSensors, 2022
A non-resonant metasurface (NRMS) concept is reported in this paper to improve the isolation of dual-polarized and wideband large-scale antenna arrays. By properly designing the NRMS, it can perform stable negative permeability and positive permittivity ...
Shengyuan Luo   +4 more
doaj   +1 more source

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