What is Electro Magnetism and where do we find it?

Electromagnetism is one of the four fundamental forces of nature, and it is the relationship between electricity and magnetism. All matter has an electric charge. This can either be positive, negative, or neutral. Positive and negative charges attract one another and matter with the same charge repel. The different charges hold atoms together and through this process an electromagnetic field will be formed. The field will transmit waves of energy and depending on the frequency it has a certain wavelength. The waves are part of a so-called electromagnetic spectrum. See figure under:

Since many years we have been surrounded by electromagnetic waves and the levels will continue to increase as technology advances. Just to give you a few examples of electromagnetic sources,

·       X-Ray equipment

·       Power Sockets in the wall

·       Terrestrial transmissions of TV signals.

·       Satellite signals.

·       Mobile phone base stations

·       Mobile phones

When this is increasing for every year, it becomes fundamental that they must be able to coexist. Devices that send and receive signals must comply with certain regulations. With CST Studio from Dassault, you can do your own 3D EM analysis that will help you in your design work to make it compatible with the regulations.

Zellaco is a distributor of the CST Studio Suite in the Nordics.