Results 21 to 30 of about 171,960 (303)
A 2GHz GaN Class-J power amplifier for base station applications [PDF]
, 2011 The design and implementation of a high efficiency Class-J power amplifier (PA) for base station applications is reported. A commercially available 10 W GaN HEMT device was used, for which a large-signal model and an extrinsic parasitic model were ...
McGeehan, JP, Mimis, K, Morris, KA
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Compound optimal control of harmonic drive considering hysteresis characteristic [PDF]
Mechanical Sciences, 2019 Hysteresis behavior widely exists in the transmission process of harmonic drives. Eliminating the hysteresis effect is highly desired in the high-precision mechanical transmission, which results in challenges in the control design.
Q. Lu, T. Gang, G. Hao, L. Chen
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Harmonics and THD analysis of Five phase inverter drive with Single tuned filter using Simulink/MATLAB [PDF]
, 2017 This paper aims at the reduction of harmonics in Five phase inverter drive using Single tuned filter. This filter eliminates most of the harmonic content at the output AC voltage/current before connecting to any load or grid. Inverter designs performance
Ananda, A.S., Manjesh, .
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Nonlinear study of injection process types into the traveling wave tube with hollow electron beam
Journal of Theoretical and Applied Physics, 2019 In this paper, examples of all types of signal injection such as different signal , harmonic signal and multiple signal injections in a TWT including hollow electron beam near frequency 1800 MHz and within input powers lower than TWT saturation power has
H. Bayati, S. Saviz, A. H. Sari
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Development of Harmonic Drive Combining Four Arcs for Conventional Kinematic Application
Machines, 2022 This paper proposes a modified harmonic cam, which is used to design a harmonic drive. Conventional harmonic drives using a sinusoidal cam type pertain to an elastic body concept and are thus difficult to design and evaluate.
Taesu Kim +4 more
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Journal of Advanced Mechanical Design, Systems, and ManufacturingVarious coordinate systems have been used in tooth profile analysis for cylindrical gears. An effective approach to tooth profile expression using normal polar coordinates is proposed.
Yuya MURAYAMA +3 more
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, 2006 Transport in a one-dimensional symmetric device can be activated by the combination of thermal noise and a bi-harmonic drive. For the study case of an overdamped Brownian particle diffusing on a periodic one-dimensional substrate, we distinguish two ...
Borromeo, M., Marchesoni, F.
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A cusp electron gun for millimeter wave gyrodevices [PDF]
, 2010 The experimental results of a thermionic cusp electron gun, to drive millimeter and submillimeter wave harmonic gyrodevices, are reported in this paper.
A. D. R. Phelps +13 more
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Jixie chuandong, 2022 Hysteresis stiffness is an inherent property of harmonic gear drive. In the traditional dynamic modeling of harmonic gear drive，the stiffness is considered as fixed stiffness or piecewise fixed stiffness，which will lead to reduction of the accuracy of ...
Linfeng Qiu +5 more
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Second Harmonic Coherent Driving of a Spin Qubit in a Si/SiGe Quantum Dot
, 2015 We demonstrate coherent driving of a single electron spin using second harmonic excitation in a Si/SiGe quantum dot. Our estimates suggest that the anharmonic dot confining potential combined with a gradient in the transverse magnetic field dominates the
Coppersmith, S. N. +8 more
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