Essential Facts About RFI and EMI Shielding

Engineers of electronic products must keep in mind EMI and RFI, and how they each contribute to negative electronics performance. EMI is created in many different ways, but regardless of how or why it was created, it can damage electronic systems. Engineers need to be mindful of the EMI their product creates as well as EMI that is in the surrounding world. Protecting devices from RFI and EMI is essential. Without proper shielding, electronics will not work correctly (if they even work at all).

Below, we want to highlight a few tips that could help better implement EMI shielding for your products.

Shielding creates a conductive layer that completely encompasses the object being protected. EMI and RFI shields date back to Michael Faraday.

Different applications require varied shielding layers and materials. Ideally, the shielding matter you use will be constructed from conductive layers or sheets of metal. We connect shielding without any interruptions by using soldering and welding. Our EMI shields are perfect for when there is no difference between conductivity and material used. As frequencies dip below 30 MHz, the thickness of metal matters for the shielding effectiveness.

Shielding works in both directions, meaning that electronics inside the shield are protected as well as electronics outside the shield. Our shields allow for individuals to prevent EMI leakage from their devices.

Adding a hole or penetrating the shield for a wire (antenna) reduces the performance of the shield. At times, it is needed, but engineers should be aware of the drawbacks.