Results 1 to 10 of about 120,732 (263)
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
doaj +2 more sources
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
doaj +2 more sources
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
doaj +2 more sources
A High-Relative-Bandwidth Doherty Power Amplifier with Modified Load Modulation Network for Wireless Communications [PDF]
Sensors, 2023 Xuan Xuefei, Chao Gu, Haipeng Zhu
exaly +2 more sources
Coordinated frequency modulation strategy considering source–load uncertainty
Frontiers in Energy ResearchIntroductionWind turbine generators (WTGs) and electric vehicles (EVs) are used as source-side and load-side resources, respectively. And the uncertainties of WTGs output and EVs charging load seriously affect the frequency stability of the power system.
Xiaohong Dong +4 more
doaj +3 more sources
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
doaj +1 more source
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
doaj +1 more source
Supply Modulation Behavior of a Doherty Power Amplifier
IEEE Journal of Microwaves, 2021 This paper presents a study of supply modulation in a Doherty power amplifier (DPA). To validate a simplified theoretical model, a 3.5 GHz conventional symmetrical DPA using a 6-W packaged GaN pHEMT is designed for supply modulation of the main and/or ...
Dan Fishler, Zoya Popovic, Taylor Barton
doaj +1 more source
IEEE Access, 2023 This paper presents a new compact load network for Doherty power amplifiers (DPAs) with only two matching networks, such as an output matching network of the carrier amplifier, and the post-matching network (PMN), even in the presence of parasitic ...
Yifei Chen +11 more
doaj +1 more source