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1 www.cst.com CST STUDIO SUITE™ 2006 Application and Feature Tutorial Automotive Applications L. Sassi Import CATIA5, stl Thin sheet body car On-glass.

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Presentation on theme: "1 www.cst.com CST STUDIO SUITE™ 2006 Application and Feature Tutorial Automotive Applications L. Sassi Import CATIA5, stl Thin sheet body car On-glass."— Presentation transcript:

1 1 CST STUDIO SUITE™ 2006 Application and Feature Tutorial Automotive Applications L. Sassi Import CATIA5, stl Thin sheet body car On-glass wire antennas Broad band transient analysis Surface Current

2 2 Why CST STUDIO SUITE 2006™ for Automotive applications? 1.User friendly interface for importing of body car, dielectric windscreens or for designing antenna parts 2.Accurate and Robust PBA meshing for solid and thin sheet shapes 3.Linear growing of the memory effort with the No. of mesh cells, allowing the use of PCs rather than expensive workstations/clusters 4.Broadband analysis: DC, AM/FM, remote control, GSM, GPS in one single simulation

3 3 Why CST STUDIO SUITE 2006™ for Automotive applications? 1.Simultaneous excitations of ports for mutual coupling analysis 2.Far field and Near field calculations both in time domain (probes) and frequency domain (field on curves) 3.Far field calculation over lossy ground enabling the simulation of outdoor test ranges 4.Accurate calculation and visualization of 3D fields and surface current for antenna and cable placement 5.Exporting data to in-house or third party tools

4 4 Body Car import: Catia5, step, stl,.... Body Car can easily be imported: Thin sheet shapes via stl/Nastran format 3D shapes via CATIA5, step, iges

5 5 Windscreen and On-glass wire antenna

6 6 Windscreen: Thicken Sheet On arbitrary thin sheet shapes can be assigned a thickness Both thin sheet shapes and 3D shapes import options are available

7 7 On-glass wire antenna: import 1D curves Transform Curves to Wires Important: curves will not be included in simulation only wires will be!

8 8 BMW analysis: DC, AM/FM up to GPS AM/FM on-glass wire antenna GPS patch antenna GSM monopole antenna Remote control loop sensor Harness signal/power cable

9 9 GMS monopole antenna

10 10 Monopole 900MHz

11 11 1D Results Comparison with car and without car Car and other sources may interference

12 12 GPS patch antenna

13 13 Patch Antenna 2.5GHz About 20mio mesh nodes CPU time 14h, 3.2GHz

14 14 1D Results Comparison with car and without car

15 15 AM/FM on-glass wire antenna

16 16 On-glass 90MHz

17 17 1D Results Comparison with car and without car Car and other sources may interference

18 18 Far Field and Near Field approximations E field visualization allows using near field approximation Lossy dielectric plane can be used in order to decouple the near field space 50

19 19 Remote control loop sensor

20 20 Loop 430MHz

21 21 Harness signal/power cable

22 22 DC surface current By means of Combine Results it is possible to calculate the global effect of all interference sources

23 23 Discrete Ports > Currents > |I| linear [1] Monopole [2] Loop [3] Cable

24 24 Discrete Port 3 total current Abs

25 25 Evaluate field on Curve Using the arrow key it is possible to mark the field values on the curve

26 26 Evaluate field on Curve / 1D Plot

27 27 Export Field in ASCII file on selected solid

28 28 Automotive Application Summary 1. Advantage of using CST STUDIO SUITE 2006™ in the automotive industries 2. Import and design of an on-glass wire antenna and windscreen (thin sheet and 3D wire models) 3. BMW mounting AM/FM, remote control loop, GSM and GPS antennas, DC analysis in harness cables 4. Far field analysis with and without car

29 29 Evaluate field on Curve / 1D Plot


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