OptEM Cable Designer Training - Sample Outline

Typical Day 1

Material and Object Definitions
  • specifying basic conductors and dielectrics
  • defining materials with frequency dependent properties
  • using materials in object definitions
  • plating thickness
  • stranding and filling factors
  • foamed dielectric and compound dielectric materials
Assembling Geometry
  • grid and latching
  • basic shapes: circle, polygon, stranded wire
  • transformation of basic shapes into polygons
  • editing polygons
  • rotation
  • placing enclosures
  • non-uniform enclosure and shaping enclosures using elasticity
  • role of anchor as placeholder and centre of rotation
Defining Cable Geometry
  • tagging shapes with object definitions
  • priority of overlapping objects
  • the role of naming conductors and dielectrics
  • importing design, instance position and rotation
  • adding lay length and backtwist information to an instance
Setup Conditions for Simulation
  • wavelength, speed of propagation and frequency
  • pulse rise time and period vs. frequency range setting in OptEM software
  • discussion of the influence of harmonics on different phenomena including waveforms
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Typical Day 2

Process Geometry Details and Analysis Methods
  • default settings for electromagnetic analysis of complex TPCs
  • role of twisting tolerance in calculating worst case repetition distance of complex TPCs
  • definition of analysis methods
  • segment length definition - a section of a cable that allows the software to build a model for any length
  • selection of the segment length and cutting density for analysis
  • four methods of analyzing TPC to optimize accuracy vs. analysis time
  • role of the internal database
Frequency Domain Circuit Simulation and S-Parameters
  • lossy (single conductor) transmission lines, propagation constant, attenuation and phase shift
  • introduction of S-parameters
  • general theory of non-uniform lines
  • chain parameters and their transformation to S-parameters
  • checking database for existing LRCG results
  • selection of frequencies and S-parameter simulation
  • CSV result files
  • viewing results in MS Excel
  • crosstalk parameters
  • approximation for backward and forward crosstalk in short lines
Spreadsheet Interface to Automate Creation of Multi-Pair Cables
  • spreadsheet syntax and keyword definitions
  • cable construction
  • location of *.xls spreadsheet files, reading the spreadsheet into the software, saving the new cable geometry
  • editing spreadsheets, adding non-keyword information
  • archiving original cable data and reading the edited spreadsheet into the software
Automate Plotting of S-Parameters Using Excel Templates
  • template naming syntax and location of *.xlt files
  • details of the *.xlt output; data sheets and charts, pair and port names
  • typical template modifications; increase number of frequency data points, change regulation limits, change number of ports (pairs)

To obtain a quotation or discuss further details about the seminar, please fill out ourform. Alternatively, please emailOptEMor call us at +1(403)289-0499.

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