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Ansys HFSS SBR+ Radar Cross Section

Course Overview

The Ansys HFSS SBR+ RCS course focuses on radar cross section applications using the shooting bouncing rays (SBR) formulation.  Initial hands-on simulation workshops cover monostatic and bistatic RCS. Lecture video and later workshops also cover radar signature imaging applications including range profile, waterfall plots, and ISAR (inverse synthetic aperture radar). These imaging applications take advantage of HFSS ACT Extension utilities RADARpre and RADARpost, which are provided and described in the course.  There are also technical descriptions of the background and usage of PTD (physical theory of diffraction), related wedge settings, the development of SBR+ surface currents on scattering geometry, and UTD (uniform theory of diffraction). The Ansys HFSS SBR+ RCS course is ideally suited for radar signature engineers experienced with Ansys HFSS for antenna applications. The initial workshops describe all necessary steps, making this course accessible to new HFSS users with any prior EM (electromagnetic) antenna simulation experience.


  • Prior experience with Ansys HFSS and antenna related applications is strongly recommended.  
  • Knowledge of radar cross section engineering principles and basic electromagnetic principles, including diffraction, are presumed.

Teaching Method

Lecture modules, supplemental videos, and hands-on HFSS simulation workshops.

Learning Outcome

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

  • Set up radar cross section simulations using the SBR+ (shooting bounding ray) design type
  • Plot 2D radiation pattern simulation results
  •  Simulate and plot 3D monostatic RCS “fuzzballs”
  • Compare SBR+ formulation with IE (integral equation) formulation 
  • Use ACT extensions to set up range profiles, ISAR (inverse synthetic aperture radar), and waterfall plots.

 Available Dates

Learning Options

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


This is a 1 day classroom course covering both workshops and lectures. For virtual training, this course is covered over 2 x 2 hour sessions, lectures only.

Virtual Classroom Session 1
Module 01: Introduction
  • Ansys simulation and AEDT overview
  • SBR+ formulation introduction
  • RCS benchmarks and validation
  • Hands-On Workshop 1: Monostatic RCS with Trihedral Corner Reflector
  • Setting up RCS simulation using SBR+ Design Type
  • Plotting 2D and radiation pattern RCS plots
  • Demonstration video accompanies this workshop

Module 02: SBR+ Simulation Setup and Results

  • SBR+ Solution Type
  • Solution setup
  • Post-processing RCS plots
  • SBR+ formulation overview (video)
  • Hands-On Workshop 2.1: Trihedral Bistatic RCS
  • 3D monostatic RCS “fuzzball”
  • Bistatic RCS of trihedral corner reflector
  • Hands-On Workshop 2.2: Trihedral SBR+ IE Comparison
  • Monostatic RCS with IE (integral equation) solver
  • Comparison of IE solver solution to SBR+ solution

Module 3: SBR+ Theory Wedges

  • Wedges for PTD and UTD
  • Wedge angle
  • Initial mesh settings (video)
  • SBR+ convergence (video)

Virtual Classroom Session 2

Hands-On Workshop 3: Missile RCS

  • Monostatic RCS of missile geometry
  • Compare wedge angle settings on simulation

Module 4: Radar Signature Imaging

  • Range profile, waterfall plots, ISAR with ACT Extensions RADARpre and RADARpost (video)
  • Hands-On Workshop 4.1: Missile ISAR
  • ISAR setup using RADARpre
  • ISAR contour plots using RADARpost

Hands-On Workshop 4.2: Plate ISAR

  • ISAR setup using RADARpre
  • ISAR contour plots using RADARpost

Hands-On Workshop 4.3: TCR Range Profile

  • Range profile setup using RADARpre
  • Range profile plots using RADARpost

Hands-On Workshop 4.4: TCR Waterfall

  • Waterfall setup using RADARpre
  • Waterfall plots using RADARpost

Hands-On Workshop 4.5: TCR ISAR

  • ISAR setup using RADARpre
  • ISAR plots using RADARpost