ANSYS Nexxim Circuit Solver Technology

Linear and nonlinear frequency-based analyses from the Nexxim circuit engine provides transistor-level accuracy, robust convergence and large capacity.

  • Circuit analyses
    • DC analysis with multiple continuation options
    • Linear network analysis
    • Multi-tone harmonic balance analysis
  • Shooting method option
    • Oscillator analysis
  • Autonomous plus driven sources option
    • Time varying noise and phase noise analyses
    • Envelope analysis
  • Multi-carrier modulation support
    • Load pull analysis and model support
    • Periodic transfer function analysis


Colpitts oscillator simulated with DesignerRF shows a variety of pertinent results such as phase noise and transient response.