Results 31 to 40 of about 2,123,471 (302)

A single‐layered balanced filtering crossover with high selectivity based on square patch resonator

open access: yesIET Microwaves, Antennas & Propagation, 2023
A new design of single‐layered balanced filtering crossover with high selectivity based on square patch resonator is proposed. Originated from the degenerate modes, that is, TM12 and TM21 on square patch resonators, the feasibility of intrinsic common ...
Yi Li, Jianpeng Wang, Lei Zhu, Wen Wu
doaj   +1 more source

Rapid Microwave Plasma Engineering of HfO2/C@C Core‐Shell Fibrous Membrane Toward Flexible High‐Performance Electromagnetic Wave Absorption

open access: yesAdvanced Functional Materials, EarlyView.
Rapid microwave plasma torch engineering tunes crystal phases, carbon graphitization and oxygen‐vacancy defects in HfO2/C@C core‐shell fibrous membranes. Synergistic multi‐loss effects optimize impedance matching to deliver −65.75 dB reflection loss and a 7.37 GHz effective bandwidth for flexible electromagnetic wave absorption.
Qichao Ding   +14 more
wiley   +1 more source

Nitride MXenes Beyond Carbides: Bridging the Gap Between Computational Prediction and Experimental Realization

open access: yesAdvanced Functional Materials, EarlyView.
Nitride MXenes remain constrained by a persistent gap between computational prediction and experimental realization. This Review identifies the thermodynamic, kinetic, and chemical barriers limiting their synthesis, critically evaluates emerging fabrication routes, and proposes a multidimensional computational‐experimental framework to accelerate the ...
Naresh Varnakavi, Masoud Soroush
wiley   +1 more source

Electronically tuned 23 GHz Gunn oscillators for a microwave datalink [PDF]

open access: yes, 1988
Includes bibliographical references.A market has been identified for 23 GHz, short-haul, low-capacity, digital radio. The dissertation presents the development of the varactor controlled Gunn oscillators that constitute the crystal locked microwave ...
Kratzenstein, L
core   +1 more source

Microwave Engineering Europe magazine articles regarding software suppliers benchmarking, including Optimization Systems Associates

open access: yes, 1997
File includes nine articles published in Microwave Engineering Europe magazine between 1990 and 1997, comparing responses to specific engineering problems and state-of-the-art advancements to engineering design.
Microwave Engineering Europe
core   +2 more sources

A New Strategy for Creating Quantum Light Emitters Via Post‐Growth Hydrogen‐Ion Irradiation of III‐V Nanowires

open access: yesAdvanced Functional Materials, EarlyView.
A post‐growth method is demonstrated to realize energy‐tunable quantum emitters in GaAs/GaAsN/GaAs core–multishell nanowires on a Si substrate. By combining the N‐induced bandgap reduction with H‐ion irradiation, the GaAsN potential landscape is engineered, enabling isolated, narrow emission lines that function as single‐photon sources with g(2)(0) ∼ 0.
Akant Sagar Sharma   +10 more
wiley   +1 more source

Optimized microwave illusion device

open access: yesScientific Reports, 2017
AbstractWe report the design, fabrication and experimental verification of an illusion device working at microwave frequencies. A two dimensional topology optimization procedure is employed to find the binary layout of a dielectric coating that, when wrapped around a metallic cylinder, mimics the scattering from a predefined, arbitrarily-shaped ...
Vial, B, Torrico, MM, Hao, Y
openaire   +4 more sources

Optimum design and measurement analysisof 0.34 THz extended interaction klystron

open access: yesAIP Advances, 2018
In order to develop an extended interaction klystron (EIK) with high performance in the terahertz range, the staggered-tuned structure is numerically studied, manufactured, and measured.
Shuang Li   +6 more
doaj   +1 more source

Degradable, Skin‐Conformal Nanocomposite‐Based Bioelectronic Patches for High‐Fidelity Electrophysiology and Gesture‐Controlled Robotics

open access: yesAdvanced Functional Materials, EarlyView.
A degradable, skin‐conformal bioelectronic patch combines a starch‐dominated nanocomposite conductor with a gelatin substrate to enable sensitive strain sensing, high‐fidelity electrocardiography, electromyography, electrooculography, and machine‐learning‐assisted gesture control.
Ming Dong   +10 more
wiley   +1 more source

Do we really need ferroelectrics in paraelectric phase only in electrically controlled microwave devices?

open access: yes, 2001
Typical paraelectric materials (e.g., SrTiO3, KTaO3, BaxSr1-xTiO3 ...
Gevorgian, Spartak   +4 more
core   +1 more source

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