The radio frequency coaxial connector (hereinafter referred to as the RF connector) is usually regarded as a component attached to a cable or installed on an instrument as a component for electrical connection or separation of transmission lines. It belongs to mechatronics products. Simply speaking, it mainly serves as a bridge.
Compared with other electronic components, the development history of RF connectors is shorter. The UHF connector that appeared in 1930 was the earliest RF connector. During the Second World War, due to the urgent needs of the war, with the development of radar, radio and microwave communications, medium series such as N, C, BNC, TNC, etc. were produced. After 1958, small products such as SMA, SMB, and SMC appeared. In 1964, the US military standard MIL-C-39012 "General Specification for Radio Frequency Coaxial Connectors" was formulated. Since then, RF connectors have begun to develop in the direction of standardization, serialization and generalization.
In more than sixty years, through the joint efforts of experts from various countries, the RF connector has formed an independent and complete professional system and has become an important part of the connector family. It is an indispensable key component of the coaxial transmission system. The research and development technology of RF connectors in the United States, Britain, France and other countries are in a leading position. Its design, production, testing, and use technologies have become a complete set and tend to be perfect. Not only has a complete standard system formed, but also raw materials, auxiliary materials, and testing systems , Assembly tools, etc. have also been standardized, and specialized scale production.
1. Many varieties and specifications: more than 20 international general series, more varieties and specifications.
2. Relying on mechanical structure to ensure electrical characteristics, it is a mechatronic product, which is essentially different from other low-frequency connectors.
3. Parts processing is mainly turning machine processing, and there are many manual assembly operations, which makes it difficult to automate assembly.
4. Product update is slow.
5. It is an important part of electrical connectors, and it is a labor-intensive product with a certain technical content.