Hardware
Mechanical Components
Example of how to shield Radio Frequency Interference [RFI] from a chassis
The graphic shows four different methods to shield incoming cables into a chassis.
The first approach is to add a Feed-through capacitor at the bulk head of the chassis, and a bypass capacitor
Next a shield is added around the wire to increase the protection [shielded cable].
Than a Radio Frequency Choke [RFC] is added near the bulk-head, followed by another bypass capacitor
The last approach shown places the RFC in it's own shielded enclosure with feed-through capacitors at each end.
When feed-through capacitors are added as part of a connector, the connector is called Pin-Filtered.
ESD connectors have a faraday cage which protects the components inside the connector from electrostatic discharges
EMI Component Manufacturers
RFI Connector Cap Manufacturers
Capacitor Manufacturers
Military/Rugged Connector Manufacturers
Snap-On Cable Ferrite Manufacturers
Two additional approaches to reduce the effect of Electromagnetic Interference [EMI]:
Use fiber optic cable which is immune to all electrical noise. A Twisted cable pair could be used which would cancel out the noise at the receiver, but allow the noise into the system. Twisted Shielded cable could also be used
How to design an Electronic Chassis, manufacturers and hints
Definition of ESD terms
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