Results 21 to 30 of about 58,213 (219)
A Low Power Low Phase Noise Oscillator for MICS Transceivers
Sensors, 2017 A low-power, low-phase-noise quadrature oscillator for Medical Implantable Communications Service (MICS) transceivers is presented. The proposed quadrature oscillator generates 349~689 MHz I/Q (In-phase and Quadrature) signals covering the MICS band. The
Dawei Li +3 more
doaj +1 more source
Sensors, 2018 In this paper, a novel single-axis MEMS tilt sensor is presented. It contains a hexagonal proof mass, six micro-lever force amplifiers and three double-ended-tuning fork (DETF) resonant strain gauges. The proof mass is placed in the center with the micro-
Shudong Wang +4 more
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Celebration of the centenary of a major scientific milestone thanks to Heinrich Barkhausen
International Journal for Simulation and Multidisciplinary Design Optimization, 2020 Brief history of a perfect optimization with the oscillation condition and microwave tube as well as contributions to oscillators at the occasion of the centenary of a great step forward thanks to genius Heinrich Barkhausen with his pages of glory in the
Salzenstein Patrice +1 more
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Fabrication of Fiber Bragg Gratings by Visible Femtosecond Laser for Multi-kW Fiber Oscillator
IEEE Photonics Journal, 2022 In this paper, we fabricate a pair of fiber Bragg gratings (FBGs) in large mode area double cladding fiber (LMA-DCF, core/inner cladding diameter: 20/400 μm) by visible (515 nm) femtosecond laser and phase mask for the first time to ...
Hongye Li +9 more
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SYNCHRONOUS OSCILLATIONS IN VAN DER POL GENERATOR WITH MODULATED NATURAL FREQUENCY
Radio Physics and Radio Astronomy, 2015 The synchronous operation of Van Der Pole generator with the low-frequency modulated natural frequency has been investigated. The presence of low-frequency modulation is shown to lead to formation of additional synchronization regions.
A. Yu. Nimets, D. M. Vavriv
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Three-Dimensional, Time-Dependent Analysis of High- and Low-Q Free-Electron Laser Oscillators
Applied Sciences, 2021 Free-electron lasers (FELs) have been designed to operate over virtually the entire electromagnetic spectrum, from microwaves through to X-rays, and in a variety of configurations, including amplifiers and oscillators. Oscillators can operate in both the
Peter J. M. van der Slot +1 more
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Advanced Functional Materials, EarlyView.Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg +6 more
wiley +1 more source
A Capacitive Pressure Sensor Interface IC with Wireless Power and Data Transfer
Micromachines, 2020 This paper presents a capacitive pressure sensor interface circuit design in 180 nm XH018 CMOS technology for an implantable capacitive pressure sensor, which has a wireless power supply and wireless data transfer function.
Chaoping Zhang +3 more
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Entropy, 2021 In this work, we build and test three memristor-based true random number generator (TRNG) circuits: two previously presented in the literature and one which is our own design.
Scott Stoller, Kristy A. Campbell
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Exciton Binding Energy of Phosphorescent Emitter Molecules in Organic Light‐Emitting Diodes
Advanced Functional Materials, EarlyView.Energy level alignment is key to efficient OLED design, yet determining LUMO energies remains challenging. A methodology based on field‐induced dissociation and kinetic Monte Carlo simulations is presented to extract LUMO energies of iridium‐based phosphorescent emitters from their exciton binding energy.
Hiroki Tomita +6 more
wiley +1 more source