Articles with "power microwave" as a keyword



Synthesis of micro- and nanostructured materials via oscillating reactions initiated by high-power microwave pulses

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Published in 2020 at "Ceramics International"

DOI: 10.1016/j.ceramint.2020.09.262

Abstract: Abstract Herein we describe the results of our study of plasma chemical process initiated by high-power microwave pulses generated by 75/0.8 gyrotron (frequency 75 GHz, pulse duration up to 12 ms, power up to 550 kW) in mixtures… read more here.

Keywords: microwave pulses; high power; power; initiated high ... See more keywords

Multi-objective design method for high-power microwave source devices based on preferred PIC/gNSGA-II

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Published in 2024 at "Journal of Electromagnetic Waves and Applications"

DOI: 10.1080/09205071.2024.2309662

Abstract: To solve the challenging problem of multi-objective optimization for high-power microwave sources, a specialized preference-based multi-objective optimization method, namely PIC/gNSGA-II, is proposed. Additionally, to achieve the quantitative optimization of the frequency spectrum and power of… read more here.

Keywords: multi objective; power microwave; pic gnsga; optimization ... See more keywords

Characterization of a Thermoacoustic-based Pulsed High Power Microwave Detector Chain

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Published in 2022 at "Health Physics"

DOI: 10.1097/hp.0000000000001626

Abstract: Abstract Detection of microwave-induced thermoacoustic (TA) wave generation was evaluated as a potential technique for detection of high power microwave (HPM) directed energy exposure. Even when HPM is employed for counter-materiel effects, incidental but still… read more here.

Keywords: power microwave; physics; high power; characterization thermoacoustic ... See more keywords
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Mechanism of AlGaAs/InGaAs pHEMT Nonlinear Response Under High-Power Microwave Radiation

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Published in 2020 at "IEEE Journal of the Electron Devices Society"

DOI: 10.1109/jeds.2020.3008816

Abstract: With the development of microelectronic technology, the reliability of devices in a complex electromagnetic environment has become one of the greatest challenges in the semiconductor industry. On this basis, a phenomenon of nonlinear transient response… read more here.

Keywords: nonlinear response; high power; response; power microwave ... See more keywords
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Simulation of High-Power Microwave Air Breakdown Modeled by a Coupled Maxwell–Euler System With a Non-Maxwellian EEDF

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Published in 2018 at "IEEE Transactions on Antennas and Propagation"

DOI: 10.1109/tap.2018.2804482

Abstract: In this paper, a discontinuous Galerkin time-domain (DGTD) method is developed to simulate high-power microwave air breakdown phenomena, which is modeled by a coupled electromagnetic–plasma system. In the coupled system, the electromagnetic fields are governed… read more here.

Keywords: high power; system; air; microwave air ... See more keywords

A Beam-Steerable Lens Antenna for Ku-Band High-Power Microwave Applications

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Published in 2020 at "IEEE Transactions on Antennas and Propagation"

DOI: 10.1109/tap.2020.2979282

Abstract: A beam-steerable lens antenna based on the concept of Risley prism is presented in this communication. The antenna is made up of a feed antenna and three transmit-array (T-A) lenses, including a stationary lens and… read more here.

Keywords: high power; power; lens antenna; power microwave ... See more keywords

Investigation on Failure Mechanisms of GaN HEMT Caused by High-Power Microwave (HPM) Pulses

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Published in 2017 at "IEEE Transactions on Electromagnetic Compatibility"

DOI: 10.1109/temc.2016.2628046

Abstract: This study aims at studying thermal and stress breakdown of gallium nitride (GaN) high-electron-mobility transistors (HEMTs) with a high-power microwave (HPM) pulse injected. A thermal breakdown model, depending on its pulse width and duty cycle,… read more here.

Keywords: high power; power; hpm; power microwave ... See more keywords

High-Power Microwave Threat to a Notional Earth-Observing Space Telescope

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Published in 2024 at "IEEE Transactions on Electromagnetic Compatibility"

DOI: 10.1109/temc.2024.3374338

Abstract: A high-power microwave (HPM) attack on a receive antenna of an Earth-observing satellite (EOS) may induce voltages on EOS telescope wiring that can damage focal plane arrays. A ground-based HPM source, using a 50-ns pulsewidth,… read more here.

Keywords: earth observing; power microwave; power; telescope ... See more keywords

The Detection Technology of High-Power Microwave: A Review

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Published in 2024 at "IEEE Transactions on Instrumentation and Measurement"

DOI: 10.1109/tim.2024.3472802

Abstract: The inspiring technological progress and turbulent military reforms have made high-power microwave (HPM) weapons a hot issue in the world today. As a modern technology integrating soft and hard killing, HPM weapons have always been… read more here.

Keywords: technology; hpm weapons; power microwave; high power ... See more keywords

Exploration of Collector Materials in High-Power Microwave Sources

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Published in 2018 at "IEEE Transactions on Plasma Science"

DOI: 10.1109/tps.2018.2792905

Abstract: The plasma effects of energetic electron bombardment on component materials severely limit the output pulsed energies of high-power microwave (HPM) sources. This paper proposes a feasible method for choosing materials for beam collectors in HPM… read more here.

Keywords: high power; exploration collector; titanium; collector ... See more keywords

A Dual-Frequency High-Power Microwave Generator

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Published in 2019 at "IEEE Transactions on Plasma Science"

DOI: 10.1109/tps.2019.2932039

Abstract: We propose a novel dual-frequency high-power microwave generator consisting of both an axial generator and a radial one stretching from the middle of the tube head of the former. As a high-voltage pulse is injected… read more here.

Keywords: high power; dual frequency; generator; power microwave ... See more keywords