Compact Load Network Having a Controlled Electrical Length for Doherty Power Amplifier
IEEE Access, 2022 The load network of the carrier amplifier for the conventional Doherty power amplifier (DPA) consists of an impedance matching circuit, an offset line, and a $\lambda $ /4 transmission line (TL), so that the overall electrical length of the network can ...
Kuhyeon Kwon +12 more
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Weighted average current method for active damping control based on grid voltage feed-forward
Journal of Cloud Computing: Advances, Systems and Applications, 2021 In the weak current network environment, the existence of power network impedance will reduce the current control stability margin of LCL grid connected inverter, the stability margin will gradually deteriorate as the inductive component of the power ...
Shengqing Li, Xinluo Li, Xiaobao Lee
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An active interferometric method for extreme impedance on-wafer device measurements [PDF]
, 2017 Nano-scale devices and high-power transistors present extreme impedances, which are far removed from the 50-Ω reference impedance of conventional test equipment, resulting in a reduction in the measurement sensitivity as compared with impedances close to
Aaen, Peter H. +3 more
core +1 more source
Electronics Letters, 2021 In order to calculate the impedance of metal return network connected with composite skin, the volume based partial element equivalent circuit method is used to model the return network, and the impedance between the nodes of the return network at ...
Zhangang Yang +3 more
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Measuring Impedances of DC-biased Inductors by Using Vector Network Analyzers [PDF]
International Journal of Electronics and Telecommunications, 2019 This paper is devoted to a detailed experimentally based analysis of applicability of vector network analyzers for measuring impedance of surface mount inductors with and without DC bias.
G. Asmanis +3 more
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Demonstration of sustained and useful converter responses during balanced and unbalanced faults in microgrids [PDF]
, 2012 In large power grids where converter penetration is presently low and the network impedance is predominantly reactive, the required response from converters during faults is presently specified by phrases such as “maximum reactive output”.
Burt, Graeme +4 more
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Data-Driven Seismic Impedance Inversion Based on Multi-Scale Strategy
Remote Sensing, 2022 Seismic impedance inversion is one of the most commonly used techniques for reservoir characterization. High accuracy and high resolution seismic impedance is a prerequisite for subsequent reservoir interpretation.
Guang Zhu +3 more
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On Impedance Bandwidth of Resonant Patch Antennas Implemented Using Structures with Engineered Dispersion [PDF]
, 2006 We consider resonant patch antennas, implemented using loaded transmission-line networks and other exotic structures having engineered dispersion.
Pekka Alitalo +4 more
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Comparison of on-wafer calibrations using the concept of reference impedance [PDF]
, 1993 A novel method that allows to compare different calibration techniques has been developed. It is based on determining the reference impedance of a given Network Analyzer calibration from the reflection coefficient measurement of a physical open circuit ...
Pradell i Cara, Lluís +1 more
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Date-Driven Distribution Network Topology Identification and Line Impedance Estimation
Zhejiang dianli, 2022 The topological structure and line impedance parameters of low-and medium-voltage distribution networks are the foundation of realizing various functions of the future intelligent distribution networks.
TONG Li +3 more
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