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Adaptive impedance matching method based on magnetic resonance wireless energy transmission
Dianzi Jishu Yingyong, 2018 In order to solve the problem of low efficiency and transmission distance of multi-to-1(multi transmit(TX) coils to one receive(RX) coil)coupled magnetic resonance(CMR) wireless power transmission system, this paper presents 2-to-1(two TX Coils to one RX
Xiong Wei, Liu Xiaojing
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Analytic mode matching for a circular dissipative silencer containing mean flow and a perforated pipe [PDF]
, 2007 An analytic mode matching scheme that includes higher order modes is developed for a straight-through circular dissipative silencer. Uniform mean flow is added to the central airway and a concentric perforated screen separates the mean flow from a bulk ...
Kirby, R +3 more
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Impedance Matching-Based Power Flow Analysis for UPQC in Three-Phase Four-Wire Systems
Energies, 2021 Different from the extant power flow analysis methods, this paper discusses the power flows for the unified power quality conditioner (UPQC) in three-phase four-wire systems from the point of view of impedance matching.
Xiaojun Zhao +5 more
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Gong-kuang zidonghua, 2019 In view of the problem that the input impedance does not match the RF internal resistance and the output power decreases due to the change of transmission distance or load in magnetic resonant coupling wireless power transmission system, an impedance ...
YUAN Shiqiang +4 more
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IEEE Access, 2022 Piezoelectric transducer is a key component of acoustic well-logging tool. Transducers used in acoustic well-logging tools usually have limited bandwidth, and their dominant frequencies severely drift with drastic change of borehole temperature when ...
Yongchao Yao +3 more
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High-efficiency microwave heating method based on impedance matching technology
AIP Advances, 2019 In a microwave heating process, part of microwave power may be reflected on the air-heating sample interface due to the impedance mismatching, caused by the relative dielectric permittivity difference between the air and the heating sample.
Qiang Chen +4 more
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Impedance Control for a Free-Floating Robot in the Grasping of a Tumbling Target with Parameter Uncertainty [PDF]
, 2006 This paper addresses an impedance control for free-floating space robot in the grasping of a tumbling target with model uncertainty. Firstly, the operational space dynamics for a free-floating robot is derived with a novel, computationally efficient ...
Abiko, Satoko +5 more
core +1 more source
The Journal of Engineering, 2015 A novel compact rat-race ring coupler with meander high-impedance transmission line and port impedance matching is presented in this Letter. First, a ring coupler with high port impedance is designed using meander lines.
Jun He, Bing-Zhong Wang
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Automatic compensation system for impedance measurement [PDF]
, 2002 This paper deals with the realization of the four-pair terminal definition of impedance standards. A simple, though reliable, system is described that allows an automatic compensation of the voltage at the low potential port of impedance standards to be ...
VALLAN A +12 more
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Impedance-Matched Microwave Lens [PDF]
IEEE Antennas and Wireless Propagation Letters, 2008 11 pages, 8 ...
Alitalo, Pekka +3 more
openaire +2 more sources