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Even as a Mathematician, I have to say Electrical Engineers impress me in a way few professions do. For me, it's just the way they use Mathematics so naturally, so practically, and so comfortably to build real things like hardware and systems. Even if someone never becomes an Engineer, there is still something worth borrowing from the Engineering mindset: Work with reality, test ideas, accept imperfect models, and keep refining until something useful emerges. One concept that really stuck with me from my Engineering Optimization course was Space Mapping. You keep a cheap coarse model, fᶜ(x), that runs fast but is only an approximation, and a costly fine model, fᶠ(x), that is much closer to reality. Then you construct a mapping, P, so that fᶜ(P(x)) tracks fᶠ(x) where it matters. Most of the optimisation happens on the cheap side, and the fine model is used carefully and sparingly. So, you do not wait for a perfect description of the world before you begin. You start with what you have, understand its limits, and still find a way to make it useful. John Bandler, a Canadian engineer and professor, formalised this in the early 1990s and showed you could make full-wave electromagnetic optimisation practical rather than masochistic. He founded Optimization Systems Associates in 1983 to commercialise the idea, and in 1997 Hewlett-Packard bought the company and folded its tools into what became HP EEsof, then Agilent, now Keysight’s RF design stack. #SpaceMapping #EngineeringMindset #ComputationalElectromagnetics #RFDesign #Optimization

Of all professions, electrical engineers are the ones that impress me the most. It’s not that they know more math. It’s how naturally they use it. A lot of ideas that sit in the pure-math neighborhood end up powering things like cryptography, coding theory, and information theory. I’d always known that in theory. What shocked me was seeing the same ideas running real systems: probability steering decisions in digital comms, optimisation shaping hardware, and information theory acting like a hard constraint on what’s even possible. Working with them on research was humbling. It made me feel like I knew nothing, in the best way. It also made me rethink what being good at math means. In my optimisation course, Space Mapping was one of the concepts that really stuck with me: you keep a computationally cheap coarse model f_c(x) that runs fast but lies, a brutally expensive fine model f_f(x) that tells the truth, and you iteratively adjust a mapping T so that f_c(T(x)) shadows f_f(x) where it matters. You do almost all the optimisation on the cheap side and call the fine model only sparingly. It’s a very engineer move: admit the model is wrong, then make it useful anyway. John Bandler, a Canadian engineer and professor, formalised this in the early 1990s and showed you could make full-wave electromagnetic optimisation practical rather than masochistic. He founded Optimization Systems Associates in 1983 to commercialise the idea, and in 1997 Hewlett-Packard bought the company and folded its tools into what became HP EEsof, then Agilent, now Keysight’s RF design stack. #SpaceMapping #ComputationalElectromagnetics #RFDesign #NonLinearOptimization #AntennaDesign

When I first joined the Department of Electrical and Computer Engineering as a researcher, coming from a maths and stats background, it shook me more than I expected. I was used to the world of proofs and theorems… what shocked me was seeing those same ideas running real systems: probability steering signals in digital comms, optimisation shaping hardware, and information theory setting the rules. It made me question my own skills.😏 In my optimization course, Space Mapping was one of the concepts that really impressed me: you keep a computationally cheap coarse model f_c(x) that runs fast but lies, a brutally expensive fine model f_f(x) that tells the truth, and you iteratively adjust a mapping T so that f_c(T(x)) shadows f_f(x) where it matters, while doing almost all the optimisation steps on the cheap side and calling the fine model only sparingly. We will look at some real applications next. John Bandler, a Canadian engineer and professor, formalised this in the early 1990s and showed that you could make full-wave electromagnetic optimisation practical rather than masochistic. He founded Optimization Systems Associates in 1983 to commercialise these ideas, and in 1997 Hewlett-Packard bought the company and folded its tools into what became HP EEsof, then Agilent, now Keysight’s RF design stack. 🫡 #SpaceMapping #Electromagnetics #RFDesign #Optimization #AppliedMathematics #AntennaEngineering

Name License Windows Linux 3D GUI Convergence detector Mesher Algorithm Area of application NEC open source Yes Yes Yes In some distributions Yes manual MoM Antenna modeling, especially in Amateur Radio. Widely used as the basis for many GUI-based programs on many platforms. Version 2 is open source, but Versions 3 and 4 are commercially licensed. Momentum commercial Yes Yes Partial Yes Yes equidistant MoM For passive planar elements development, integrated into Keysight EEsof Advanced Design System. HFSS commercial Yes Yes Yes Yes Yes Automatic adaptive FEM FDTD PO Hybrid FEBI MoM Eigen Mode For antenna/filter/IC packages, Radome,RFIC,LTCC,MMIC,Antenna Placement,Wave guides, EMI,FSS,Metamaterial,Composite Material, RCS-Mono and Bi development. XFdtd commercial Yes Yes Yes Yes Yes Automatic Project Optimized FDTD RF and microwave antennas, components, and systems, including mobile devices. MRI coils, radar, waveguides, SAR validation. AWR Axiem commercial Yes Yes Yes Yes Yes Automatic, Hybrid MoM PCBs, Multi-Layer PCBs, LTCC, HTCC, On-Chip Passives, Printed Antennas. Integrated into Microwave Office AWR Analyst commercial Yes Yes Yes Yes Yes Automatic and Adaptive FEM 3D structurers(including 3D Antennas), Waveguides, 3D filters, PCBs, Multi-Layer PCBs, LTCC, HTCC, On-Chip Passives, Printed Antennas. Integrated into Microwave Office JCMsuite commercial Yes Yes Yes Yes Yes Automatic, error-controlled FEM Nano- and micro-photonic applications (light scattering,[1] waveguide modes,[2] optical resonances[3]). QuickField commercial and free editions Yes No Partial Yes Yes Automatic or Manual FEM General Purpose for research, engineering and educational use, includes AC, DC and Transient Magnetics, Electrostatics, AC and DC Conduction, Transient Electrics, Heat Transfer and multiphysics COMSOL Multiphysics commercial Yes Yes Yes Yes Yes Automatic FEM, | MoM, Ray Tracing General Purpose FEKO commercial Yes Yes Yes Yes Yes Automatic or manual; adaptive MoM FEM FDTD MLFMM PO RL-GO UTD For antenna analysis, antenna placement, windscreen antennas, microstrip circuits, waveguide structures, radomes, EMI, cable coupling, FSS, metamaterials, periodic structures, RFID Elmer FEM open source (GPL) Yes Yes Yes Yes Yes manual, or can import other mesh formats FEM General Purpose, includes 2D and 3D magnetics solvers, both static and harmonic. 3D solver is based on the Whitney AV formulation of Maxwell's equations. VSimEM Commercial Yes Yes Yes Yes Yes Automatic, Variable mesh FDTD, PIC & Finite Volume Simulating electromagnetics, and electrostatics in complex dielectric and metallic environments. Phased array antenna systems, radar equipment, and photonics.

Новое видео на канале Keysight EEsof AE Tips: MBP Si/CMOS Turn-key Device Modeling Platform Innovations 2022 - Overview (Part2) youtu.be/r-gc8Mdeb2Y #Keysight #ads #pathwave #SystemVue #EEsof

NITT’s ECE Department organized a workshop on "Enabling Technologies for 5G and Beyond 5G Wireless Communication Systems” from 19 - 23 April. The workshop comprised 32 participants in the presence of University of Saskatchewan, Canada and EESOF division- Keysight Technologies.

Keysight EEsof EDA is the leading supplier of Electronic Design Automation (#EDA) software. Get your #FreeTrial now and accelerate the development of RF, microwave and high-speed digital designs! bit.ly/2TmYATD #SoftwareDesign

Keysight EEsof EDA is the leading supplier of Electronic Design Automation (#EDA) software. Get your #FreeTrial now and accelerate the development of RF, microwave and high-speed digital designs! bit.ly/30iUrBu

Keysight EEsof EDA is the leading supplier of Electronic Design Automation (#EDA) software. Get your #FreeTrial now and accelerate the development of RF, microwave and high-speed digital designs! bit.ly/36k3qV8

Keysight EEsof EDA is the leading supplier of Electronic Design Automation (#EDA) software. Get your #FreeTrial now and accelerate the development of RF, microwave and high-speed digital designs! bit.ly/353kfmZ

Keysight EEsof EDA is the leading supplier of Electronic Design Automation (#EDA) software. Get your #FreeTrial now and accelerate the development of RF, microwave and high-speed digital designs! bit.ly/2MkgCBV

Register for the DAPE 2019 workshop to see Keysight present on #PathWave ADS for Power Electronics. bit.ly/2NG6NiT #Eesof #PowerSupplies

WATCH NOW: Michael from Nokia Bell Labs measures an end-to-end phased array system (1 min 34 sec). bit.ly/2YD1arJ #EEsof #5G #IMS2019

WATCH NOW: Michael from Nokia Bell Labs measures an end-to-end phased array system (1 min 34 sec). bit.ly/2YKkByZ #EEsof #PhasedArray #Test

Attend our #EESOF Seminar in Modern Techniques for the Design and Simulation of RF Systems in Surrey on the 1st May. bit.ly/2PeXrJJ #CircuitDesign

Attend our #EESOF Seminar in Modern Techniques for the Design and Simulation of RF Systems in Surrey, May 1st. bit.ly/2Uxny4s

Join us in France or Germany at one of our April #EESOF seminars: Analysing On-chip and Off-chip #RF Impairments. bit.ly/2HXUCLp

Join us in France or Germany at one of our April #EESOF seminars: Analysing On-chip and Off-chip RF Impairments. bit.ly/2UKSQkw

Join us in France or Germany at one of our April #EESOF seminars: Analysing On-chip and Off-chip #RF Impairments. bit.ly/2TPu5Hd