Results 11 to 20 of about 129,952 (301)
Phase Detection and Modulation Improvement for Active Load Modulation during Continuous Transmission [PDF]
Sensors, 2021 The paper covers one of the communication technologies used in wireless sensor networks. We have presented improvements in existing radio frequency identification (RFID) systems to address the problem of the phase selection in active load modulation (ALM)
Nejc Suhadolnik +5 more
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A Dynamic Load Modulation Power Amplifier with Ferroelectric-Based Tunable Matching Network [PDF]
SensorsPower amplifiers are crucial components that significantly influence the linearity and energy efficiency of next-generation communication system radio units. A key challenge in designing power amplifiers is managing high peak-to-average power ratio (PAPR)
Pavel Turalchuk +2 more
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Detection of Cognitive Load Modulation by EDA and HRV. [PDF]
Sensors (Basel)Electrodermal activity (EDA) and heart rate variability (HRV) offer opportunities to grasp critical manifestations of the nervous autonomic system using low-intrusive sensing tools. A key question relies on the capacity to adequately process EDA and HRV signals to extract cognitive load markers, a multifaceted construct with intricate neural networks ...
Boffet A +4 more
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Temporal shift in task factor influence across the stretch reflex. [PDF]
PLoS ONEMechanical perturbations applied to the arm can elicit reflexive actions. These rapid corrective responses include the stretch reflex, which consists of different components: the short-latency reflex (SLR) and the early and late long-latency reflex (LLR).
Frida Torell +2 more
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Load-Induced Modulation of Signal Transduction Networks [PDF]
Science Signaling, 2011 The presence of downstream partners that interact with enzymatically modified or unmodified signaling proteins changes the dynamics of signal transduction.
Jiang, Peng +5 more
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EnergiesWhen a doubly fed induction generator (DFIG) participates in primary frequency modulation by rotor kinetic energy control, the torque of the generator is changed sharply and the mechanical load pressure of the shaft increases rapidly, which aggravates ...
Chaoyu Zhang +7 more
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, 2007 The purpose of this master thesis was to study if the drain efficiency of power amplifiers can be maintained at power back off using a technique called load modulation. The amplifier classes studied are E, F and D-1. The target figure was to obtain a 10 to 12 dB dynamic range of amplitude with reasonable efficiency.
Almgren, Björn
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Design of a Load Modulated Balanced Amplifier with a Two-Stage Control Power Amplifier [PDF]
Journal of Electromagnetic Engineering and Science, 2023 While an ideal Doherty power amplifier has a linear response, the load modulated balanced amplifier (LMBA) has a compressive response under ideal conditions.
Sagini E. Mochumbe, Youngoo Yang
doaj +1 more source
Energies, 2023 Similar to a Doherty power amplifier (DPA), a sequential power amplifier (SPA) is mainly composed of a main amplifier, an auxiliary amplifier and a combiner.
Keyuan Yang +5 more
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A Dual Load-Modulated Doherty Power Amplifier Design Method for Improving Power Back-Off Efficiency
Sensors, 2023 In this paper, the load modulation process of a Doherty power amplifier (DPA) is analyzed to address the issue of why designed DPAs have a very low efficiency in the back-off state in some cases.
Yi Jin +4 more
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