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Preventing Intentional EMI—aka Sabotage (Download)

Feb. 21, 2023

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Before we can define intentional electromagnetic interference (IEMI), which will also be referred to as “sabotage” in this article, let’s begin by characterizing electromagnetic waves.

A mechanical wave can be defined as a vibration or disturbance in matter through some medium (such as a solid, liquid, gas, or plasma). Sound waves occurring in the air are mechanical waves.

A changing magnetic field induces a changing electric field and vice versa—these two are linked. The two changing fields ultimately will form electromagnetic waves. Electromagnetic waves aren’t like mechanical waves; they don’t need a medium to propagate. Thus, electromagnetic waves have the ability to travel not just through air and solid materials, but through the vacuum of space as well.


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