Analysis

Circuits can be analyzed in many different ways. When you simulate a circuit, the settings for the analysis determine how the simulation runs. The analysis creates a dataset with the simulation results. If an analysis is set to "automatically recalculate" it will re-simulate each time you make a change to the design and then click a graph or table dependent on the analysis.

Genesys provides the following analysis engines:

• DC Analysis- Determines the circuit DC operating point.
• Harbec Harmonic Balance Analysis - Checks the steady-state performance of nonlinear circuits and oscillators with excellent frequency resolution.
  Linear - Calculates S-parameters and noise parameters of a circuit, substituting resistive ports for sources..
• Empower Planar 3D EM Analysis - Performs a linear analysis based on a layout using an electromagnetic simulation.
• Spectrasys System - Performs a system-block-level non-linear analysis on the entire system to determine if all system-level requirements are met.
• Testlink - Imports data from instruments to allow measurement comparison with models used to develop the network being tested.
• Cayenne Transient Analysis - Calculates a circuit response using the SPICE time domain method.

For more info on theses analyses see the Getting Started with Genesys Simulation

To add a linear analysis

1. Click the New Item button ( ) on the Workspace Tree toolbar and select an analysis from the Analyses menu. Try linear analysis for this simple circuit.
2. Define the analysis properties and click OK. Here we are sweeping from .1 to 10MHz using a linear sweep with 101 points. The dataset name is blank so it will default to Linear1_Data.
   
3. When you click OK or Calculate Now the analysis runs and creates a data set.

Clicking OK only runs an analysis if the analysis is set to Automatically Recalculate.

Click Save as Favorite to have the current analysis saved as your default when you create a new analysis of this type. This will also close the dialog.

To add a transient analysis

1. Click the New Item button ( ) on the Workspace Tree toolbar and select a transient analysis from the Analyses menu.
2. Define the analysis properties and click OK. Here we have a stop time of 2 us (2 cycles at 1MHz) and start at 0 volts DC and be most accurate at 1MHz (which won't actually matter for this circuit).
   
   Again, the dataset name is blank so we will use Transient1_Data as the dataset name.
3. Click OK or Calculate Now.

Clicking OK only runs an analysis if the analysis is set to Automatically Recalculate.