Results 41 to 50 of about 64,211 (268)
Design and analysis of the output windows of a doorknob structure for high-power P-band klystron
AIP Advances, 2022 This article presents the design, analysis, and simulation for the klystron coaxial radio frequency (RF) output windows. Three new RF windows (Type-2, 3, and 4) are proposed based on the coaxial RF window with a doorknob structure (Type-1) to improve its
Quangui Chao +4 more
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Photonic microwave generation with high-power photodiodes [PDF]
Optics Letters, 2013 3 pages, 3 ...
Fortier, Tara M. +7 more
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Titanium Suboxides Responsible for Electronic Anomaly Near Room Temperature in the Ti3C2Tx MXene
Advanced Functional Materials, EarlyView.Our multi‐technique study reveals that the near‐room‐temperature anomaly in Ti3C2Tx MXene is linked to titanium suboxide nanodomains, including Ti3O5, embedded within the MXene host. Their temperature‐driven transformation provides an alternative explanation to solvent‐ and swelling‐based models and offers new insight into the thermally activated ...
Bence G. Márkus +8 more
wiley +1 more source
AIP Advances, 2021 This paper presents the simulation results of a multistage depressed collector for a MW-class gyrotron. The energy distribution of spent electrons is obtained by a beam–wave interaction code.
Kai Wang +4 more
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Advanced Functional Materials, EarlyView.We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang +14 more
wiley +1 more source
Experimental study of destructive effects on materials with different energy electron bombardment
AIP Advances, 2021 In the study of breakdown in high power microwave (HPM) devices, researchers pay attention to the plasma effects caused by material ablation under electron bombardment.
Nongchao Tan +5 more
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Nonlinear Distortion in a Microwave High Power Amplifier [PDF]
2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA), 2019 In this paper the high-power amplifier CGHV31500F designed for the radar S-Band application is studied. The amplifier module is based on GaN HEMT encapsulated internally matched transistor, delivering more than 500 W in a pulse regime. Nonlinear model of this amplifier was developed and nonlinear distortion of a standard radar signal and of possible ...
Bezoušek, Pavel +2 more
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Advanced Functional Materials, EarlyView.ABSTRACT Perovskite solar cells (PSCs) are promising next‐generation photovoltaics. The high performance of PSCs is attributed to the long carrier lifetimes of perovskite photoabsorbers. However, the carrier lifetimes of polycrystalline perovskite layers, which serve as the photoabsorbers in practical PSCs, have remained limited to several tens of ...
Naoyuki Nishimura +2 more
wiley +1 more source
Asymmetric modes suppression in Cerenkov device using anisotropic media
AIP Advances, 2019 Asymmetric modes competition in Cerenkov devices were studied with a view to developing a novel method to suppress modes competition, based on loading of the slow-wave structure (SWS) with an anisotropic medium.
Zhiqiang Fan +6 more
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Novel double-band input coupler for gyroklystron and gyro-TWT
AIP Advances, 2021 A novel input coupler that can operate in two different frequency bands separately is proposed in this paper. The dual-band (X/Ku) signals are input by two rectangular waveguides, respectively, in particular, a Bragg reflector is inserted in one of the ...
Xiaoyan Wang +3 more
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