Electromagnetic simulation and electronic design automation(EDA)play an important role in the design of 5G antennas and radio chips.The simulation challenges include electromagnetic effects and long simulation time an...Electromagnetic simulation and electronic design automation(EDA)play an important role in the design of 5G antennas and radio chips.The simulation challenges include electromagnetic effects and long simulation time and this paper focuses on simulation software based on finite-element method(FEM).The state-of-the-art EDA software using novel computational techniques based on FEM can not only accelerate numerical analysis,but also enable optimization,sensitivity analysis and interactive design tuning based on rigorous electromagnetic model of a device.Several new techniques that help to mitigate the most challenging issues related to FEM based simulation are highlighted.In particular,methods for fast frequency sweep,mesh morphing and surrogate models for efficient optimization and manual design tuning are briefly described,and their efficiency is illustrated on examples involving a 5G multiple-input multiple-output(MIMO)antenna and filter.It is demonstrated that these new computational techniques enable significant reduction of time needed for design closure with the acceleration rates as large as tens or even over one hundred.展开更多
The name of one of the authors,Qihua Xiong,was spelt incorrectly as“Qihura Xiong”in the original article[1].The article was corrected online on 23 September 2022.
High magnetile field spectroscopy has been performed on lead chloride-based perovskite,a material that attracts significant interest for photovoltaic and photonic applications within the past decades.Optical propertie...High magnetile field spectroscopy has been performed on lead chloride-based perovskite,a material that attracts significant interest for photovoltaic and photonic applications within the past decades.Optical properties being mainly driven by the exciton states,we have mcasured the fundamental parameters,such as the exciton binding energy,effective mass,and dielectric constant.Among the inorganic halide perovskites,CsPbCl3 owns the largest exciton binding energy and effective mass.This blue emmitting compound has also been compared with lower band gap energy perovskites and other semiconducting phasces,showing comparable band gap dependences for binding energy and Bohr radius.展开更多
基金the Electromagnetic Design of Flexible Sensors Project under Grant No.POIR.04.04.00-00-1DC3/16-00,which is carried out within the Team-Tech Program of the Foundation for Polish Science co-financed by the European Union under the European Regional Development Fund,Smart Growth Operational Program 2014-2020.
文摘Electromagnetic simulation and electronic design automation(EDA)play an important role in the design of 5G antennas and radio chips.The simulation challenges include electromagnetic effects and long simulation time and this paper focuses on simulation software based on finite-element method(FEM).The state-of-the-art EDA software using novel computational techniques based on FEM can not only accelerate numerical analysis,but also enable optimization,sensitivity analysis and interactive design tuning based on rigorous electromagnetic model of a device.Several new techniques that help to mitigate the most challenging issues related to FEM based simulation are highlighted.In particular,methods for fast frequency sweep,mesh morphing and surrogate models for efficient optimization and manual design tuning are briefly described,and their efficiency is illustrated on examples involving a 5G multiple-input multiple-output(MIMO)antenna and filter.It is demonstrated that these new computational techniques enable significant reduction of time needed for design closure with the acceleration rates as large as tens or even over one hundred.
文摘The name of one of the authors,Qihua Xiong,was spelt incorrectly as“Qihura Xiong”in the original article[1].The article was corrected online on 23 September 2022.
基金Ministry of Education-Singapore(MOE2018-T2-2-0G8,MOE2018-T3-1-002,RG103/15 and RG113/16)National Science Centre Poland(OPUS 2015/33/B/ST3/01915)Agence Nationale dc la Rechcrche(ANR-18-CE30-0023-01,ANR-1O-LABX-0037-NEXT).
文摘High magnetile field spectroscopy has been performed on lead chloride-based perovskite,a material that attracts significant interest for photovoltaic and photonic applications within the past decades.Optical properties being mainly driven by the exciton states,we have mcasured the fundamental parameters,such as the exciton binding energy,effective mass,and dielectric constant.Among the inorganic halide perovskites,CsPbCl3 owns the largest exciton binding energy and effective mass.This blue emmitting compound has also been compared with lower band gap energy perovskites and other semiconducting phasces,showing comparable band gap dependences for binding energy and Bohr radius.
