3020707

Radio frequency interference (RFI) and Electromagnetic interference (EMI) are unavoidable and persistent phenomena, occurring in numerous applications across the industrial, consumer, and military/government sectors. RFI and EMI contacts, fingerstock, and gaskets act as the first line of defense against the loss of signal integrity and are designed as a barrier to protect devices and systems from outside interference.

Contacts

RF and EMI contacts are electrical connectors consisting of a mating pair of energized components, typically connected together by a threaded, press-fit, or crimped connection. Better contact designs feature waveguide technology, providing extremely low impedance paths for signals to travel along, reducing RF noise and interference.

Fingerstock

Fingerstock, sometimes referred to as c-rings, are small metal strips with holes on either end that are used to create a contact surface between two components, creating an RF-tight connection between the two. This minimizes electrical losses and reduces interference, thus allowing higher data rates and signal strength to be achieved.

Gaskets

RFI and EMI gaskets are designed to electrically connect two parts together in order to provide an air-tight seal between them. This ensures that no external power or noise sources can be conducted from outside sources, such as lightning or antennas, to the internal components. The gaskets also block out dust, moisture and contaminants, thus providing additional protection for the internal components.

Working principle

The working principle of RFI and EMI contacts, fingerstock, and gaskets is simple: they are designed to provide an effective filter between two components, shielding them from outside interference. Contacts provide a physically secure connection, allowing for low signal loss and high signal strength, while fingerstock and gaskets create an air-tight seal, blocking out dust, moisture and contaminants and protecting the internal components from external power sources.

Conclusion

RFI and EMI contacts, fingerstock, and gaskets are essential components in ensuring reliable, interference-free signal transmission. By providing an effective shield against outside interference, they help to reduce signal loss and protect components from dust, moisture and contaminants, thus maintaining signal integrity.