0077005719 RF/IF and RFID

RFIs (Radio Frequency Interference) and EMIs (Electromagnetic Interference) are the two types of interference or interference waves which can interfere with electrical systems and which can be detected by a receiver or antenna. RFIs are generated by various sources, such as radios, mobile phones, television transmitters, radar installations, computers, or radio links. EMI is caused by electromagnetic radiation emitted from any device or equipment. Both types of interference can disrupt the operation of network systems, communication systems, and other electronic equipment.

Aimed at curbing and controlling the radiation of such interference, contacts, fingerstock, and gaskets are used as a means of protection. Contacts are components which engage with each other and are often made of copper or brass to ensure a good electrical connection. Fingerstock is a type of flexible wiring material with alternating layers of insulation and metal which acts as a basic insulation and electrical insulation barrier and are used as protection against RFIs and EMIs. Gaskets are made of rubber, or other resilient material that is used to seal a joint and provide a good electrical insulation between two components or parts.

The main purpose of contacts, fingerstock, and gaskets is to reduce the transmission of interference from one source to another. For example, contacts are used in electrical installations to ensure proper electrical connections, while fingerstock can be used to reduce the transmission of interference between two systems. Gaskets can be used to prevent two surfaces being electrically connected which may cause interference. These three components can be used together to provide effective protection against RFIs and EMIs.

Contacts, fingerstock, and gaskets are also used in combination with other methods such as filtering and shielding to reduce EMIs. Filtering is a technique used to reduce the interference emitted from a particular source by passing the signal through a special filter. Shielding is used to protect against EMIs by encasing the internal components in a protective material that restricts the transmission of the electromagnetic radiation.

The application and working principles of contacts, fingerstock, and gaskets are relatively simple. The contact is composed of two conductive materials, usually copper and brass, which when connected together, form a complete electrical connection. Fingerstock is usually composed of alternating layers of insulation and strips of metal which act as an insulation barrier. Gaskets are typically composed of a resilient material, such as rubber, which when placed between two surfaces, can prevent an electrical connection and therefore, protect the system from interference. In all three cases, the components act as a barrier to prevent the transmission of RFIs and EMIs.

RFIs and EMIs can cause a significant amount of disruption and interfere with the operation of various systems. As such, it is important to take steps to protect against such interference. Contacts, fingerstock, and gaskets can be effective tools in controlling interference and minimising its effect on electrical systems and equipment. When used in conjunction with other methods, such as filtering and shielding, they can provide a reliable and efficient way of protecting against electromagnetic interference.