Ansys HFSS: High Frequency Simulation

Ansys HFSS powers RF and wireless design across electromagnetic applications.

RF Design and Performance Testing for Antennas

Ansys HFSS delivers industry-leading 3D electromagnetic simulation for high‑frequency design, using advanced finite-element, integral‑equation, and hybrid solvers to produce accurate, fast analysis of antennas, PCBs, ICs, interconnects, and more. HFSS empowers engineers to optimize RF and microwave systems before building prototypes, saving time and money in the design process.

Ansys HFSS Applications

Ansys HFSS plays a critical role in the following applications, processes, and technologies:

  • Antenna and phased-array systems

  • RF/microwave filters, amplifiers, and waveguides

  • High-speed PCB interconnects and connectors

  • IC packages and multi-layer substrates

  • Electromagnetic interference (EMI), EMC, and RCS analysis

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How to Design RF models in Ansys HFSS

Virtual Prototyping for Antenna Development

HFSS supports aerospace, defense, automotive, telecom, and consumer electronics with tools that design and validate radar systems, satellite links, vehicle radar/ADAS, 5G infrastructure, and IoT devices. Companies benefit from full‑wave 3D EM modeling that accelerates certification, reduces prototyping cycles, and ensures compliance in mission‑critical environments.

Offers full-wave 3D EM analysis with adaptive meshing for high accuracy in complex geometries.
Combines FEM, MoM, and SBR+ to tackle large-scale and open-region problems like RCS and antenna arrays.
Maximizes solver performance by integrating multiple mesh types with parallel computing support.
Continuously refines the mesh based on the EM field solution, ensuring precision without manual tuning.
Imports PCB and IC package layouts directly, enabling seamless multi-physics co-simulation across the electronics stack.

Overcoming Antenna Design Challenges with HFSS

Designing antennas for modern applications demands precision, performance, and compliance testing. High‑frequency electromagnetic simulation enables engineers to predict behavior, optimize systems, and ensure reliability early in the process using HFSS.

A helix antenna in Ansys HFSS
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Antenna Placement & Co-site Interference

Engineers tackle signal distortion and coupling between multiple antennas with HFSS’s full‑wave and SBR+ solvers, enabling accurate prediction of near-field interactions and co-site interference in automotive, aerospace, and defense systems.

Radar Cross Section (RCS) and Stealth Performance

HFSS provides asymptotic RCS analysis through SBR+ to simulate far-field radar signatures, supporting stealth design and target identification across military and commercial aerospace platforms

High-Speed Interconnect and Signal Integrity

HFSS’s hybrid FEM/MoM solvers model high-speed PCB interconnects and IC packaging accurately, predicting signal losses, reflections, and EMI issues to support 5G and IoT product development.

What Can Ansys HFSS Do?

Ansys HFSS is your Swiss Army knife for all high frequency applications. From antenna design to PCB and EMI applications, HFSS equips you for the task ahead.

Design Accurate Antenna Systems

HFSS models antenna patterns, gain, and efficiency under real-world conditions with high fidelity.

Simulate EMI/EMC Compliance

Detect and mitigate electromagnetic interference issues early, ensuring regulatory compliance and reducing late-stage redesigns.

Optimize High-Frequency PCB & IC Layout

Validate signal integrity, crosstalk, and package-level EM effects before fabrication, improving device performance and reliability.

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