IMPEDANCE

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Design of awideband symmetric large back-off range Doherty power amplifier based on impedance and phase hybrid optimization
《Frontiers of Information Technology & Electronic Engineering》2025年第1期146-156,共11页Zhongpeng NI Jing XIA Xinyu ZHOU Wa KONG Wence ZHANG Xiaowei ZHU 
supported by the National Natural Science Foundation of China(Nos.62171204,62001192,and 62171129)。
The present paper proposes an optimization design method for the Doherty output matching network(OMN)using impedance–phase hybrid objective function constraints,which possesses the capability of enhancing the efficie...
关键词：Back-off power range Doherty power amplifier Fragment-type structure Impedance-phase hybrid function 
A Microstrip Leaky-Wave Antenna with Scanning Beams Horizontal to the Antenna Plane
《Chinese Journal of Electronics》2024年第5期1218-1223,共6页Henghui WANG Peiyao CHEN Sheng SUN 
supported by the National Natural Science Foundation of China(Grant Nos.61971115 and 61721001);the Sichuan Science and Technology Program(Grant No.2023NSFSC0486).
A leaky-wave antenna with horizontal scanning beams and broadside radiation is presented on the periodically modulated microstrip.The horizontal radiation is realized by periodically etching a set of resonant open-end...
关键词：Bloch impedance Horizontal radiation Leaky-wave antenna Microstrip line Seamless beam scanning. 
A novel topology with controllable wideband baseband impedance for power amplifiers
《Frontiers of Information Technology & Electronic Engineering》2024年第2期308-315,共8页Yao YAO Zhijiang DAI Mingyu LI 
Project supported by the National Natural Science Foundation of China(No.62001061);the Science and Technology Research Program of Chongqing Municipal Education Commission,China(No.KJQN202201525);the Natural Science Foundation of Chongqing,China(No.CSTB2022NSCQ-MSX0453);the Research Foundation of Chongqing University of Science and Technology,China(No.CKRC2020029)。
This paper presents a novel topology to control the baseband impedance of a power amplifier(PA)to avoid performance deterioration in concurrent dual-band mode.This topology can avoid pure resonance of capacitors and i...
关键词：Baseband impedance Concurrent dual-band Power amplifier 
Impedance-based Stability Criterion for the Stable Evaluation of Grid-connected Inverter Systems with Distributed Parameter Lines被引量：6
《CSEE Journal of Power and Energy Systems》2023年第1期145-157,共13页Xianghua Peng Honggeng Yang 
For a multi-inverter grid-connected system,the stability of the point of common coupling(PCC)voltage is evaluated considering the distribution parameters of the transmission lines.First,the systems on both sides of th...
关键词：Distributed parameter line impedance-based approach impedance phase compensation multi-inverter grid connection PCC voltage model small-signal equivalent circuit 
Fully printed origami thermoelectric generators for energy-harvesting被引量：3
《npj Flexible Electronics》2021年第1期1-8,共8页Andres Georg Rösch AndréGall Silas Aslan Matthias Hecht Leonard Franke MdMofasser Mallick Lara Penth Daniel Bahro Daniel Friderich Uli Lemmer 
funded by the Federal Ministry of Education and Research of Germany in the framework of PANAMAT(project number 03XP0161);the Ministry of Science,Research and Arts of the state of Baden Wurttemberg through the MERAGEM graduate school;supported by the German Federal Environmental Foundation(Deutsche Bundesstiftung Umwelt-DBU)through the DBU PhD scholarship program;This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No 814945-SolBio-Rev.
Energy-harvesting from low-temperature environmental heat via thermoelectric generators(TEG)is a versatile and maintenancefree solution for large-scale waste heat recovery and supplying renewable energy to a growing n...
关键词：ENERGY HARVESTING IMPEDANCE 
Analytical Models of Passive Linear Structures in Printed Circuit Boards
《Chinese Journal of Electronics》2021年第2期275-281,共7页PENG Zhenzhen SU Donglin 
supported by the National Natural Science Foundation of China(No.61427803,No.61771032);the Civil Aircraft Projects of China(No.MJ-2017-F-11)。
Analytical models for passive linear structures,like metallic traces,vias,are proposed for simulations at the package and Printed circuit board(PCB)levels.In the proposed method,traces are modeled based on the transmi...
关键词：Equivalent circuits Parallel-plate impedance Printed circuit boards TRACE Transmission line theory VIA 
Exploring water and ion transport process at silicone/copper interfaces using in-situ electrochemical and Kelvin probe approaches
《Journal of Materials Science & Technology》2021年第5期203-213,共11页B.Munirathinam J.P.B.van Dam A.Herrmann W.D.van Driel F.De Buyl S.J.F.Erich L.G.J.van der Ven O.C.G.Adan J.M.C.Mol 
financially supported by NWO-TTW,The Netherlands(project no.13893)。
In general,packaging materials which encapsulate light emitting diodes(LEDs)and microelectronic devices offer barrier protection against several environmental hazards such as water and ionic contaminants.However,these...
关键词：SILICONE IMPEDANCE Water transport Scanning Kelvin probe DELAMINATION 
120 GHz on-chip multi-mode wideband dielectric resonator antennas for THz applications被引量：3
《Optoelectronics Letters》2020年第3期166-170,共5页TENG Yun-long 
the National Natural Science Foundation of China(No.61701339).
This work discusses the design methods of 120 GHz on-chip dual-mode and three-mode dielectric resonator antennas(DRAs)based on a standard CMOS technology.The bandwidths of the DRAs are expanded by merging adjacent mod...
关键词：DIELECTRIC IMPEDANCE expanded 
Distributed parameter circuit model for wideband photodiodes with inductive coplanar waveguide electrodes被引量：2
《Chinese Optics Letters》2020年第6期40-44,共5页Yaru Han Bing Xiong Changzheng Sun ZhibiaoHao Jian Wang Yan junHan Lai Wang Hongtao Li Jiadong Yu Yi Luo 
This research was supported by the National Key R&D Program of China(No.2018YFB2201700);Science Challenge Project(No.TZ2016003);National Natural Science Foundation of China(Nos.61975093,61927811,61822404,61974080,61904093,and 61875104);Tsinghua University Initiative Scientific Research Program(No.20193080036);Key Lab Program of BNRist(No.BNR2019ZS01005);Basic Research Priorities Program of Shenzhen(No.JCYJ20160608170030295);China Postdoctoral Science Foundation(Nos.2018M640129 and 2019T120090);Collaborative Innovation Centre of Solid-State Lighting and Energy-Saving Electronics.
An equivalent circuit model including multi-section distributed parameters is proposed to analyze wideband photodiodes(PDs)with coplanar waveguide(CPW)electrodes.The model helps extract CPW parameters as well as intri...
关键词：photodiodes PHOTODETECTOR high-impedance coplanar waveguide 
Dynamically pre-compressed hydrocarbons studied by self-impedance mismatch被引量：1
《Matter and Radiation at Extremes》2020年第2期26-32,共7页N.J.Hartley C.Zhang X.Duan L.G.Huang S.Jiang Y.Li L.Yang A.Pelka Z.Wang J.Yang D.Kraus 
The authors would like to thank the technical teams at LFRC for their invaluable work producing the targets and operating the facility.N.J.H.and D.K.were supported by the Helmholtz Association under Grant No.VH-NG-1141.Y.L.was supported by the National Natural Science Foundation of China(Grant No.11605189).
Using the SG-III prototype laser at China Academy of Engineering Physics,Mianyang,we irradiated polystyrene(CH)samples with a thermal radiation drive,reaching conditions on the principal Hugoniot up to P≈1 TPa(10 Mba...
关键词：IMPEDANCE REFLECTIVITY shock 
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