RF, Microwave & Antennas

Radio frequency (RF) and microwave applications represent some of the fastest-growing segments of the high-performance electronics market, and innovation is critical. To address the design complexity and density in this sector, ANSYS simulation software enables RF and microwave circuit, component and antenna design.

The ANSYS suite includes capabilities for:
  • Modeling, analysis, simulation and design optimization of antennas, radar cross section (RCS), filters, diplexers, power amplifiers, RF packaging and microwave circuits.
  • Harmonic balance, circuit envelope, transient, and Agilent's X-Parameter simulation with direct integration with 3-D EM simulators (including FEM, method of moments, integral equation, and transient solvers)
  • Thermal and stress analysis based on electrical performance by linking to other products in the ANSYS multiphysics suite.

ANSYS software streamlines the transfer of design databases from popular third-party EDA layout tools from Cadence, Mentor, Synopsys, Zuken, Altium and others.


ANSYS HFSS is the tool of choice for engineers who design, optimize and integrate antennas. HFSS automatically computes standard antenna metrics such as gain, return loss, input impedance, radiation efficiency and full 3-D near- and far-field patterns

Microwave Circuits

Modern high-density RF and microwave circuits have nonlinear active devices combined with closely spaced passive components. Designing circuits with dense, embedded passives with surrounding RF packaging is challenging due to electromagnetics (EM) interactions causing parasitics that may lead to non-ideal circuit behavior.

Communication Systems

Increasing component densities and board layers leads to unexpected signal couplings that require accurate and comprehensive parasitic extraction and system/subsystem verification in a communication system's standard. Neglecting these proximity effects can lead to a host of system problems, such as frequency shift and spurious oscillations, that can be directly detected only with systems analysis.

Radar Cross Section

Modern radar systems can include specialized active antennas plus microwave circuits and devices. The electromagnetics properties of antennas, radomes and their installed platforms are governed by underlying physics. Designing sophisticated systems pushes the limits of simulation to solve ever-larger and more complex electromagnetics radiation and scattering problems.