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Ansys HFSS Multipaction

Course Overview

The Ansys HFSS Multipaction course covers secondary electron emission (SEE) and RF Discharge.


  • Completion of the HFSS Getting Started course or equivalent familiarity with the HFSS 3D Modeler, workflow, solver setup, and post-processing (plotting results graphs).
  • Familiarity with physics related to multipaction.

Teaching Method

Lectures and computer practical sessions to validate acquired knowledge.

Learning Outcome

Following completion of this course, you will be able to:

  • Understand how HFSS simulates multipaction 
  • Know how to set up multipaction simulations in HFSS.
  • Know how to plot multipaction simulation results in HFSS.

 Available Dates

Learning Options

Training materials for this course are available with an Ansys Learning Hub Subscription. If there is no active public schedule available, private training can be arranged. 


This is a 1-day instructor-led course with lecture and hands-on simulation workshops. For virtual training, this course is covered over 2 x 2-hour sessions, with lectures and demonstration of most workshop steps.

Virtual Classroom Session 1

  • Introduction and multipaction basics
  • Two-surface and single-surface multipaction
  • Secondary electron emission
  • HFSS multipaction analysis setup
  • W01 Coaxial Cable Workshop 
  • W02 Coaxial Cable to Microstrip Workshop

Virtual Classroom Session 1

  • W03 Helical Antenna Workshop
  • RF discharge and Paschen’s Law
  • RF discharge and dependencies 
  • W04 RF Discharge in a Coaxial Cable
  • W05 RF Discharge in a Circular Waveguide