Electromagnetics Research at TU/e and Applications in EMC. by Anne Roc h and Anton Tijhuis a.roch@tue.nl or a.g.tijhuis@tue.nl

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1 Electromagnetics Research at TU/e and Applications in EMC by Anne Roc h and Anton Tijhuis a.roch@tue.nl or a.g.tijhuis@tue.nl

2 Full-time and Part-time Professors Anton Tijhuis Bart Smolders Huib Visser EMC at TU/electromagnetics Giampiero Gerini 27/5/2015 PAGE 1

3 Associate and Assistant Professors Martijn van Beurden Rob Mestrom Peter Smulders Anne Roc h EMC at TU/electromagnetics Vito Lancelotti Matti Herben Bas de Hon 27/5/2015 PAGE 2

4 Development of Research Program EM team Dream: Electromagnetic Engineering Antennas Connected World Design Modeling Dream: Predictive Modeling Care and Cure Bio-EM High-tech Systems EMC-EMI EMC at TU/electromagnetics 27/5/2015 PAGE 3

5 Observations on Modeling High-tech systems are complex but can be broken up into simpler components Modeling the electromagnetic field in high-tech systems by brute-force computation is not feasible 3D fields in components can be handled interaction governed by limited number of observables The design engineer wants more than modeling from field analysis to field synthesis formulation in terms of design parameters impact of manufacturing tolerances: sensitivity unknown environment: stochastic effects EMC at TU/electromagnetics 27/5/2015 PAGE 4

6 EBG-based waveguide LEGO model: 1 generator brick, 9 bulk-dielectric bricks, 20 bricks with holes x-aligned magnetic dipole Vito Lancellotti EMC at TU/electromagnetics 27/5/2015 PAGE 5

7 EBG-based waveguide (continued) Results: tangential electric field over the bricks surface a) The holes effectively confine the field along y b) Classic (total reflection) along z c) Wave-like character (possibly standing wave due to truncation along x) EMC at TU/electromagnetics 27/5/2015 PAGE 6

8 Adaptive Downtilt for Base Stations 60 W Wideband Antenna Array GHz Poor efficiency Efficiency improvement: 0 10 adaptive downtilt 2 kw RF Power Divider Phase Shifters (delay lines) EMC at TU/electromagnetics Bart Smolders and Rob Mestrom 27/5/2015 PAGE 7

9 Energy: Wireless Power Small wideband antennas Power harvesting glass Huib Visser EMC at TU/electromagnetics 27/5/2015 PAGE 8

10 Microwave Hyperthermia EMC at TU/electromagnetics Collaboration with Maarten Paulides, Erasmus MC 27/5/2015 PAGE 9

11 Stochastic Geometry Latest development: model mechanical behavior of wire (Rob Mestrom) Piano wire model: Martijn van Beurden, Anton Tijhuis, Peter Zwamborn EMC at TU/electromagnetics 27/5/2015 PAGE 10

12 Stochastic Fields: Experiment Measurement Setup by TNO Defence, Security and Safety EMC at TU/electromagnetics 27/5/2015 PAGE 11

13 HTSM Project: EMC for Automotive Fuel Injection Airbag Control Body Control Interior Lighting Door Module ABS module Automotive Power Automotive Networking Daylight Beam EMC at TU/electromagnetics 27/5/2015 PAGE 12

14 A design and designer friendly EMC toolset Anne Roc h A design and designer friendly EMC toolset Why a toolset? Many facets: grounding, shielding, filtering Different design specialties Models can be combined! Why designer friendly? Why design process friendly? - No prototype needed - Fast simulation time -> trends - Risk management (sensitivity, deviation, spurious system interactions) - Adapted to design specialties - Inputs: items directly and easily accessible to the designer - Outputs: related EM performances (conducted/radiated) - Model: black-box with embedded knowledge - Early design choices optimized / Electrical Engineering / Electromagnetics PAGE 13

15 Example: Model for the DC EMI filter design Typical outputs: IN SITU current attenuation and resonances Late in the design process 1 AC-DC prototype 4 CMCs 4 measurements Data treatment Early in the design process 4 simulations (simulation time<1minute) Fast choice / Electrical Engineering / Electromagnetics PAGE 14

16 A design and designer friendly EMC toolset Each model developed is a long term benefit

17 EMC at TU/electromagnetics 16

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