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RF & Microwave

High-frequency electromagnetic simulation module in EMWORKS for antennas, filters, resonators, interconnects and other RF components.

RF & MICROWAVES Overview

RF & MICROWAVES is the high-frequency module of EMWORKS. It is used to model electromagnetic wave behaviour in 3D and to evaluate quantities such as S-parameters, field distributions, resonant modes, radiation patterns and time-domain responses, including TDR for interconnects and transmission lines. When coupled with EMWORKS thermal solvers, RF losses can be used as heat sources to estimate temperature rise in high-power components and densely packed assemblies. Typical devices include antennas, filters, resonators, waveguides, connectors, transitions and high-speed interconnects where geometric details, material properties and thermal effects have a strong impact on performance.

RF & MICROWAVES Analysis Options

RF & MICROWAVES provides several analysis types commonly needed in RF and microwave design.
S-Parameters

S-Parameters

Compute scattering parameters for circuits and components, including insertion loss, return loss and isolation. Use these results to assess matching, bandwidth and overall RF performance.

Resonance

Resonance

Identify resonant frequencies and field distributions in cavities, resonators and filter structures. This helps set dimensions and materials to achieve the required frequency response.

Antennas

Antennas

Evaluate radiation patterns, gain, efficiency and impedance of antennas and arrays. Study the effect of ground planes, radomes and nearby structures on antenna performance.

Time Domain

Time Domain

Analyze transient behaviour in interconnects and components, including reflections from discontinuities, crosstalk and dispersion in high-speed signal paths.

Multiphysics Coupling

In many RF applications, losses lead to temperature rise and changes in performance. RF & MICROWAVES supports coupling with thermal analysis in EMWORKS.

Thermal Coupling

Thermal Coupling

RF power losses computed in electromagnetic studies can be transferred to thermal solvers to estimate temperature distribution and identify regions at risk of overheating or material limits. This is useful for high-power components, tightly packed boards and systems where cooling is constrained.

Applications of RF & MICROWAVES

RF & MICROWAVES supports a range of high-frequency applications, including:
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Chip, Package, Board Systems

Model signal paths from chip through package to PCB to study impedance, reflections and coupling across the entire chain, including the impact of layout and stack-up choices.
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Connectors and Transitions

Simulate 3D connectors, launches and transitions (for example coax-to-microstrip or microstrip-to-stripline) to evaluate return loss, mode conversion and local field concentrations.
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Electro-Thermal

Compute RF losses in components or interconnects and use them as heat sources in coupled thermal studies to estimate temperature rise and identify regions that may exceed material or reliability limits.
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EM Exposure

Analyze field distributions in and around devices to estimate exposure levels in regions of interest and check against defined limits in representative operating scenarios.
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Filters

Evaluate S-parameters, field distributions and Q-factors in filters to confirm insertion loss, return loss and rejection over the required frequency bands.
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Passive Components

Model inductors, capacitors, couplers and other passive RF components to study parasitics, frequency response and loss behaviour in realistic 3D geometries.
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Planar-Printed Antennas

Simulate printed and planar antennas on substrates to assess impedance, bandwidth, radiation patterns and efficiency, including the influence of ground planes and nearby structures.
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Printed Circuit Boards (PCBs)

Analyze high-speed traces and RF sections on PCBs for impedance, crosstalk and coupling, taking into account stack-up, via fields and proximity to other conductors.
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Resonators

Identify resonant frequencies, mode shapes and Q-factors in cavity, dielectric and planar resonators to support the design of frequency-selective structures.
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Transmission Lines

Use frequency-domain and time-domain (including TDR-style) analysis to study reflections, dispersion and losses in transmission lines, cables and interconnects over the relevant frequency range.
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Waveguide Antennas

Model waveguide-based antennas and apertures to evaluate radiation patterns, gain and impedance, and to study how geometry changes affect the overall response.

Why teams use RF & MICROWAVES

Design validation before hardware

To check whether the chosen geometry, stack-up and materials deliver the required S-parameters, bandwidth, matching and radiation characteristics at the target frequencies.

Understanding fields in complex 3D structures

To see where fields, currents and losses are concentrated in connectors, transitions, packages, enclosures and waveguide structures, and how changes in geometry affect them.

Troubleshooting and refinement

To investigate unexpected resonances, coupling paths, EMI/EMC issues or sensitivity to manufacturing tolerances that are hard to isolate from measurements alone.

Supporting layout and packaging decisions

To evaluate how PCB routing, via placement, shielding, grounding and housing details influence performance and interference between nearby circuits or antennas.

Complementing circuit simulation and measurement

To provide 3D field-based results that sit alongside circuit-level simulation and lab measurements, helping to explain observed behaviour and guide design changes.

Evaluate RF & MICROWAVES on your designs

If you work with RF, microwave or high-speed components and need field-level simulation in addition to circuit tools and measurements, you can evaluate RF & MICROWAVES as part of EMWORKS.

A short trial on one or two representative models is usually enough to see whether the module fits your workflows and accuracy requirements.

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