BJ157FL Connectors, Interconnects

Coaxial Connectors (RF) are widely used in the electronic, communications and military industries. They are used to provide secure connections between two pieces of equipment such as cable, antennae, and amplifiers. BJ157FL, as one of the most used coaxial connectors, is applied widely in various field.

Applications

BJ157FL is widely used in UHF radio frequencies (from 300MHz to 3GHz). It is suitable for applications requiring high performance, including base station antennas, radio RF coaxial ampifiers, mobile antennas,WLAN access points, satellite communications, radars, short range UAVs and in-building distributed antenna systems.

BJ157FL provides good shielding performance and connecting reliability due to its impedance match and reliable EMI shielding. This coaxial connector also has excellent stability and repeatable performance in resistance and VSWR response. Therefore, it is a good choice for device and antenna connections, providing an insulation barrier and reliable EMC connection for interference reduction, noise isolation, and enhanced signal integrity and reliability.

Working Principle

The BJ157FL coaxial connector consists of two main components: the external plug or adapter nut, and the internal plug. The external plug is usually composed of a main coupling nut, a secondary coupling nut, and a shell. The external adapter nut, when connected to the internal plug, forms an electrical connection between the two components.

The internal plug carries a central conductor connected to the internal terminal by a spring. This spring creates additional contact force between the two components and improves the connection reliability. The other end of the central conductor is connected to the shield and covers the terminal. The internal coupling nut is used to screw the external coupling nut. The connection of the two components completes the electrical connection of the BJ157FL coaxial connector, ensuring a low intermodulation distortion connection.

Summary

BJ157FL is a widely used coaxial connector in UHF radio frequencies. It is suitable for applications requiring high performance, including base station antennas, RF amplifiers, mobile antennas, and WLAN access points. BJ157FL has good shielding performance and connecting reliability due to its impedance match and EMI shielding. The BJ157FL consists of two main components – the external plug and the internal plug – that create a low intermodulation distortion connection when connected.