8910011846 RF/IF and RFID

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Radio Frequency Interference (RFI) and Electromagnetic Interference (EMI) is one of the primary causes of communication interference and signal degradation in radio communication applications. Shielded contacts, fingerstock, and gaskets are designed to reduce RFI and EMI and thus prevent signal interference. The proper application of these materials can help ensure reliable long-distance communication in radio and other signal applications.

Fingerstock consists of a series of small, metal fingers that are mounted side by side in strips. When two of the fingerstock strips are pressed together, the metal fingers interlock and create an electrical connection. This connection allows for the electrical resistance of the fingerstock to be lowered to one thousandth that of a solid conductor, thereby providing an effective Faraday shield against RFI and EMI. The strips can be custom-manufactured to any length and can be used to cover the entire length of a given contact, thus providing excellent shielding performance.

Shielded contacts are also used to reduce RFI and EMI in signal applications. Shielded contacts are designed to mate with other contacts on a printed circuit board and provide an electrical connection for the signals. The contacts are surrounded by a metal shielding layer that prevents RFI and EMI from entering the contact. The shielding layer is grounded to the circuit board, and the contact conductor is suspended within the shielding layer. If the contact is properly designed, it can be used to prevent the transmission of electromagnetic energy into or out of the contact.

Gaskets are used to form a barrier between two components, preventing the transfer of electromagnetic energy. They are typically made from a flexible material such as rubber, and are coated with a highly conductive layer that is able to dissipate any electromagnetic fields that may be present. When placed between two components, the gasket blocks off any openings between the components, thus forming an effective Faraday cage and shielding both components from external electromagnetic energy. Gaskets are often used to shield delicate electronic devices such as amplifiers or transceivers from any external interference that may be present.

The proper use of shielded contacts, fingerstock, and gaskets is essential to obtaining good communication performance in radio frequency applications. By using these materials, the chances of interference and signal degradation are greatly reduced, which provides for reliable long-distance communication.

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