Creating a New RE Analyst Project

When a new radiated emissions analysis is initiated the RE model is built in the following sequence:

1.  Enter frequency range -- Enter the frequency range over which to analyze the circuit for radiated emissions.

2.  Specify a RE limit -- Input the limit against which to compare calculated radiated emissions.  Limits may be created using the Limit form when the RE project is being built or may be loaded from file if built previously.

3.  Define source parameters -- Enter the time-domain characteristics of the source voltage and current waveforms.  RE Analyst converts the time-domain waveforms to their frequency domain equivalent spectrums over the frequency range specified in step 1 above.  Previously saved source models may be loaded from file.

4.  Build filter model -- Using the schematic capture program that is built into RE Analyst build a schematic diagram of those electrical components that lie between the Source and the Conductors.  Filter components are selected from the Component Library.  Enter values to match the characteristics of the actual components used.  Schematics created and saved previously may be loaded from file.

5.  Specify conductor parameters -- Select the conductor configuration that most closely matches the circuit under investigation.  Eight different cable configurations allow nearly all common conductors to be modeled.  If your cable configuration has be saved during a previous analysis the conductor model may be loaded from file.

6.  Define shield construction, as applicable -- For shielded conductors enter the parameters that define how the shield is constructed.  These values are used to calculate Shield Transfer Impedance, which is used in determining shielding effectiveness of the shield.

7.  Specify shield termination parameters, as applicable -- For each end of shielded conductor select a termination method and enter parameters that define how the termination is constructed.

8.  Build load model -- Using the schematic capture program build a schematic diagram of the electric circuit to which the conductors are connected.  Select components from the Component Library and enter values to match the characteristics of the components used in the load circuit of the system under investigation.  Schematics created and saved previously may be loaded from file.

9.  Calculate and display radiated emissions -- With the information above entered, RE Analyst calculates the electric field radiated from the conductors.  At the completion of calculations, radiated emissions are displayed graphically or numerically.

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CS Analyst Basics