RF & Microwave

The rapid pace of innovation in high-performance electronics markets is driving the need for high-fidelity RF and microwave simulation. ANSYS RF and microwave simulation software provides capabilities for:

ANSYS solvers are based on finite element, integral equation and advanced hybrid methods to solve a wide range of microwave, RF and antenna applicationsFinite element-, integral equation- and advanced hybrid-based solvers for microwave, RF and antenna applications
  • Modeling, analysis, simulation and design optimization of antennas, radar cross section (RCS), filters, diplexers, power amplifiers, RF and microwave components
  • 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.


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Antenna Design Antenna Design

Engineers design, optimize and integrate antennas with ANSYS HFSS. HFSS automatically computes standard antenna metrics such as gain, return loss, input impedance, radiation efficiency and full 3-D near and far field patterns. Dynamic electromagnetic-circuit cosimulation with ANSYS Designer provides rigorous end-to-end analysis for an antenna system including, for example, effects of transceiver network integration on beam patterns and steering for antenna arrays. For planar antenna designs such as patch or meander line PCB antennas,  HFSS provides a 2.5-D method of moments solution in an easy-to-use 2-D drawing interface for fast analysis of layered 2-D designs.

Vivaldi array antenna optimized with ANSYS HFSS ANSYS HFSS is ideal for designing and optimizing antennas, such as this Vivaldi array.

Antennas: offset reflector antenna solved by ANSYS HFSS Offset reflector antenna solved by ANSYS HFSS

Microwave Circuit Design Microwave Circuit Design

In compact design footprints, the performance of passive components in RF and microwave circuit design is directly coupled to the physical geometries and materials along with their relative spacing. Accurate analysis and extraction of waveguides, filters, couplers, transitions and connectors along with their interaction, including multiphysics thermal and mechanical effects, is a must in modern electronics design in which performance margins and time to market are critical. The automation and accuracy of HFSS provides a best-in-class solution to understanding the electromagnetic interaction and performance of components. Tight coupling to circuit through ANSYS Designer allows you to develop a comprehensive system-level understanding via combined analysis, including circuit interaction with electromagnetics.

X-band balanced amplifier: electromagnetics and cirsuit analysis for entire solutionX-band balanced amplifier with two QFN packaged amplifiers on FR-4 multi-layered board with wire bonds and vias

GaAs amplifier package analysis with ANSYS HFSS
Microwave thermal stress analysis with ANSYS Mechanical Results from electrical analysis can be combined with ANSYS multiphysics tools to simulate thermal performance of GaAs amplifier package: ANSYS HFSS for electromagnetics (top), ANSYS Mechanical for thermal (bottom).

Communication Systems 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 system analysis. ANSYS electronics simulation tools capture component-to-component interaction, transmission line coupling and electrical behavior of PCB structures such as via transition, connector footprints and interconnects. Powerful handshaking between transient and harmonic balance circuit engines in ANSYS Designer and electromagnetic simulation in ANSYS HFSS ensure accurate prediction of nonlinear system performance metrics, such as IP3, spectral content, ACPR, EVM, P1db, PAE and phase noise.

Wireless LAN transceiver simulation combines communication system simulation with 3-D electronicsWireless LAN transceiver simulation combines communication system simulation with 3-D electromagnetics.

Radar Cross Section Radar Cross Section

Modern radar systems, which include specialized active antennas, microwave circuits and devices, and  radomes, are governed by underlying electromagnetic physics. Designing sophisticated systems pushes the limits of simulation to solve ever-larger and more complex electromagnetic radiation and scattering problems. A phased-array radar antenna, for instance, does not operate in free-space, as it may be mounted on the front or side of an aircraft. That aircraft is likely constructed of  metallic and composite materials, which affect the behavior of the antenna and, therefore, the radar system. Just as this complexity affects performance of antenna systems, it affects radar cross section characteristics of the platform. Understanding the radiation and scattering performance of such systems requires a comprehensive simulation capability. ANSYS electronics software provides a comprehensive set of solver technologies to tackle these most complex systems in a rigorous fashion. Combining best-in-class finite element, method of moment and physical optics solvers with a breakthrough domain decomposition technology provides a rigorous and scalable solution for large-scale electromagnetic simulations.

Radar cross section: ANSYS HFSS with breakthrough domain decomposition technology for solving large-scale electromagnetic simulations, such as radar cross section ANSYS HFSS with breakthrough domain decomposition technology for solving large-scale electromagnetics simulations, such as radar cross section