cst studio suite™ 2006 application and feature tutorial automotive applications l. sassi
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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. Why CST STUDIO SUITE 2006™ for Automotive applications?. - PowerPoint PPT PresentationTRANSCRIPT
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CST STUDIO SUITE™ 2006Application and Feature Tutorial
Automotive Applications
L. Sassi
Import CATIA5, stlThin sheet body carOn-glass wire antennasBroad band transient analysisSurface Current
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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
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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
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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
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Windscreen and On-glass wire antenna
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Windscreen: Thicken Sheet
On arbitrary thin sheet shapes can be assigned a thickness
Both thin sheet shapes and 3D shapes import options are available
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On-glass wire antenna: import 1D curves
Transform Curves to Wires
Important: curves will not be included in simulation only wires will be!
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BMW analysis: DC, AM/FM up to GPS
AM/FM on-glass wire antenna
GPS patch antenna
GSM monopole antenna
Remote control loop sensorHarness signal/power cable
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GMS monopole antenna
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Monopole Farfields @ 900MHz
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1D ResultsComparison with car and without car
Car and other sources may interference
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GPS patch antenna
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Patch Antenna Farfields @ 2.5GHz
About 20mio mesh nodes
CPU time 14h, 3.2GHz
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1D ResultsComparison with car and without car
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AM/FM on-glass wire antenna
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On-glass antenna @ 90MHz
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1D ResultsComparison with car and without car
Car and other sources may interference
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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
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Remote control loop sensor
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Loop H-Field @ 430MHz
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Harness signal/power cable
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DC surface current
By means of Combine Results it is possible to calculate the global
effect of all interference sources
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Discrete Ports > Currents > |I| linear
[1] Monopole
[2] Loop
[3] Cable
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Discrete Port 3 total current Abs
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Evaluate field on Curve
Using the arrow key it is possible to mark the field values on the curve
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Evaluate field on Curve / 1D Plot
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Export Field in ASCII file on selected solid
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Automotive ApplicationSummary
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
![Page 29: CST STUDIO SUITE™ 2006 Application and Feature Tutorial Automotive Applications L. Sassi](https://reader036.vdocuments.site/reader036/viewer/2022081419/56814d48550346895dba6d08/html5/thumbnails/29.jpg)
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Evaluate field on Curve / 1D Plot