EMC simulation software can provide us with a very effective tool for designing high-frequency and high-speed electromagnetic simulations. It integrates high-speed circuit modeling, simulation, and optimization. Using simulation instead of experiments can help engineers quickly complete high-speed circuit EMC design. To achieve signal integrity, reduce research and development costs and shorten development cycles.

At present, there are many kinds of EMC simulation software for commercial use in the world, mainly used in high-speed PCB circuit design, various types of high-frequency filter design, high-frequency antenna and waveguide design, LTCC design, transmission line design (including microstrip, strip Line and coaxial cables, etc.), signal integrity design, and electromagnetic analysis. Most EDA software adopts a modular design. Different modules implement different functions. The user can select the module for software configuration according to their needs. The following describes four typical EMC simulation design software.

(1) Ansoft High-Frequency and High-Speed ​​Designers This software is designed by Ansoft CorporaTIon and mainly consists of high-frequency design, signal integrity and electromagnetic design software products.

High-frequency design products mainly include:

(a) 3D electromagnetic finite element high frequency design tool HFSS;

(b) DESIGNER for RF, high speed and communication design tools;

(c) RF/mixed signal Ic and high performance signal integrity design tool NXXlM.

Signal integrity design products mainly include:

(a) Multilayer board, integrated circuit package and 3D design tool 3D EXTRACTOR;

(b) Power and Signal Integrity Analysis Tool Siwave;

(c) Fast simulation analysis tool TPA for high speed Ic.

Electromagnetic design and analysis tools mainly include:

(a) Maxwell 2D and 3D tools for electromagnetic and thermal analysis in 2D and 3D modes;

(b) System modeling tool SIMPLORER;

(c) Magnetic Element Design Tool PEXPRT;

(d) Performance evaluation tool RMXPRT after the rotation of the electronic structure.

(2) SimLab EMC SimulaTIon Software

The software is designed by the German Simlab software company and mainly includes PCBMOd, CableMod, and RaidaSim software products.

PCBMod is a powerful tool for simulating EMC/EMI and signal integrity. It can perform 2D and 3D simulations. PCB design data can be imported from the main EDA database. Time and frequency domain analysis methods are mainly used to measure the voltage distribution and components on the node. The current distribution, scattering parameters, impedance curve, radiation, etc.

CableMod is an analysis tool for system interconnection and can be used for modeling and simulation of complex cable structures. It can perform 2D simulations. It mainly uses time and frequency domain analysis methods to measure voltage distribution on nodes, current distribution of components, scattering parameters, Impedance curve, radiation, etc.

RaidaSim is a radiation calculation tool for PCBs, harnesses, and devices that can perform 2D and 3D simulations, introduce current density distributions, calculate near-field and far-field, 2D and 3D graph results, and more.

The biggest drawback of this software is that it can only work under UNIX and X-Window/MoTIf environments, and has not yet released versions under Windows NT and Windows 2000 environments.

(3) FLO/EMC Design Class ElectromagneTIc Analysis Software for Electronics This software is designed by Flomerics Ltd. The company designs, can independently and comprehensively carry out EMC design and analysis of components, modules, systems, and antennas, adopts time-domain transmission line matrix analysis methods, 2D and 3D visual simulation of electromagnetic fields and currents, and the shielding effectiveness analysis of chassis, etc. Model configuration, circuit and wire modeling, slot modeling, automatic mesh generation, circuit modeling, and shielding effectiveness analysis.

(4) SONNET High Frequency Electromagnetic So ftware This software is made by SONNET Software Inc. The company design includes seven functional modules such as Professional, Gold, Silver, sasic, LitePlus, and Lite.

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