The electromagnetic capabilities included in ANSYS are broken into:

Low Frequency Magnetic Analyses

High Frequency Electromagnetic Analysis

The recent acquisition of ANSOFT by ANSYS, Inc. greatly expands the range of capabilities in both areas.  At this time, SimuTech Group is not permitted to handle the ANSOFT products but does expect to do so in the near future.

If you have any questions on electromagnetic analysis with either ANSYS or ANSOFT, please contact us.  You may also wish to review the ANSYS Emag brochure.

Low Frequency Magnetic Analyses

Low frequency magnetic analyses, available in ANSYS, calculate the magnetic field in devices such as:

Typical quantities of interest in a magnetic analysis are:

Magnetic fields may exist as a result of an electric current, a permanent magnet, or an applied external field.

You can do the following low frequency types of static, harmonic, and transient magnetic analysis:

2-D Static Magnetic Analysis - analyzing magnetic fields caused by direct current (DC) or permanent magnets. A 2-D static analyses use a magnetic vector potential (MVP) formulation.

2-D Harmonic Magnetic Analysis - analyzing magnetic fields caused by low frequency alternating current (AC) or voltage. Permanent magnets are not permitted. This type of analysis uses a MVP formulation.

2-D Transient Magnetic Analysis - analyzing magnetic fields caused by arbitrary electric current or external field that varies over time. Permanent magnet effects also can be included. This analysis type uses a MVP formulation.

3-D Static Magnetic Analysis - analyzing magnetic fields caused by direct current (DC) or permanent magnets using a magnetic scalar potential (MSP) formulation.

3-D Static Magnetic Analysis - analyzing magnetic fields caused by direct current (DC) or permanent magnets using an edge-based formulation.

3-D Harmonic Magnetic Analysis - analyzing magnetic fields caused by low frequency alternating current (AC), using an edge-based formulation. Permanent magnets are not permitted. The edge-based formulation is recommended for most harmonic magnetic applications.

3-D Transient Magnetic Analysis- analyzing magnetic fields caused by arbitrary electric current or external field that varies over time, using an edge-based formulation. Permanent magnet effects also can be included. The edge-based formulation is recommended for most transient magnetic applications.

3-D Static Magnetic Analysis- analyzing magnetic fields caused by direct current (DC) or permanent magnets using a MVP formulation.

3-D Harmonic Magnetic Analysis - analyzing magnetic fields caused by low frequency alternating current (AC), using a MVP formulation. Permanent magnets are not permitted.

3-D Transient Magnetic Analysis - analyzing magnetic fields caused by arbitrary electric current or external field that varies over time, using a MVP formulation. Permanent magnet effects also can be included.

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High Frequency Electromagnetic Analysis

The ANSYS program supports high-frequency electromagnetic analysis. This type of analysis calculates the propagation properties of electromagnetic fields and waves in a given structure. The ANSYS program supports both time-harmonic and modal high-frequency analysis.

Except in a few cases, most-high-frequency devices use electromagnetic waves to carry information. For this reason, frequency plays a vital role in the design of such devices. High-frequency electromagnetic field analysis simulates the electromagnetic phenomena in a structure when the wavelength of the signal is of the same order of magnitude or smaller than the dimensions of the model. The high-frequency band ranges from hundreds of MHz to hundreds of GHz.

In general, you use high-frequency electromagnetic field analysis to solve interior problems or exterior problems. For interior problems, an electromagnetic field propagates or oscillates in a closed structure such as an accelerator chamber, a microwave filter, or a high-speed electronic package. The oscillating frequencies and scattering matrix parameter (S-parameter) are usually investigated. For exterior problems, an electromagnetic wave radiates into open space or it is scattered by an object in the open domain. Examples are phased antenna arrays and radar reflection from a metallic object. The radiation pattern, directive gain, or radar cross section (RCS) is usually investigated.

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