RF Coaxial Connectors, Adapters and Cable Assemblies are generally considered to be the components attached to a cable or mounted on an instrument as electrical connecting or separating elements of the transmission line, how do we classify the RF connectors and select them?
As to the connection interface structure, we can devide them into:
1. bayonet style (inner bayonet, outer bayonet): BNC;
2. Thread type (right hand thread, left hand screw): L29 (7/16), N, F, TNC, SMA, SMC, SSMA, SSMB, FME...
3. Push-in type (inline, self-locking): SMB, SSMB, MCX, MMCX, SMP...
4. Flange connection type
According to the size, we can devide them into:
1. Standard type: UHF, N, 7/16;
2. Small: BNC, TNC;
3. Ultra-small: SMA, SMB, SMC, MCX;
4. Micro: SSMA, SSMB, MMCX;
How to select the RF coaxial connectors
1. Interface mechanism type: The connection mechanism of the connector not only provides convenient and quick connection or separation of the coaxial transmission line, but also provides stable electrical performance and environmental protection devices. When there is not enough space for rotating the connection nut in the occasion of use, Non-twist type connection mechanism should be selected.
2. Termination: The connector can be used for radio frequency coaxial cable, printed circuit board, chassis drawer functional components and its connection interface. Before use, you must be familiar with the performance of the selected product and use it in strict accordance with the specified conditions. Overloaded use may cause failure of the coaxial connector. Special attention must be paid when attaching the cable connector. The assembly instructions provided by the supplier must be correct. Use a suitable attachment tool for operation.
3. Electrical performance: characteristic impedance, withstand voltage and maximum working efficiency.
RF coaxial connector features:
1. Slow product replacement.
2. The parts processing is mainly turning machine processing, assembly manual work, it is difficult to automate the assembly.
3. Mechanical features ensure electrical characteristics, which are electromechanical integration products, and are essentially different from other low-frequency connectors.
4. Product reliability, failure modes and failure mechanisms are complex.
5. Many types of specifications: more than 20 international series, more variety specifications.
Application:
1. Communications and networks;
2. Traffic monitoring system;
3. Medical machinery;
4. Instrumentation connection.
Due to the characteristics of RF coaxial connectors, it is not only widely used in automobiles, information communications, communications and broadcasting, communications networks, instrument testing, medical, aerospace, transportation, and antennas, but also in security systems, civil aviation, microwave components, and radio frequency. Microwave switches, consumer electronics, defense, military and other occasions and equipment.
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