What are the types of RF connectors?
What are the types of RF connectors?
RF coaxial connectors, usually mounted on cables, PCB boards or on instruments, mainly serve as bridge connections.The basic structure of the coaxial connector consists of three parts: inner conductor, medium and outer conductor, as well as structural parts and sealing parts.The vast majority of coaxial connectors are polarized, and polarized connectors consist of mating male and female connectors with pins in them Called male, female connectors have jacks.
Commonly used RF coaxial connectors include the following types:
1, Type N connector: Type N connectors are threaded and can be rotated to lock. It was one of the first connectors capable of transmitting microwave frequency signals. The N-type connector supports signal frequencies ranging from 0 to 11GHz, and the enhanced type can reach 18GHz. There are two kinds of characteristic impedance, 50 ohms (widely used in mobile communications, wireless data, paging systems, etc.) and 75 ohms (mainly used in cable television systems).
2,BNC Connector: The BNC connector originated in the 1950s and is a bayonet connector that is convenient and quick to plug and unplug. Standard BNC connectors currently operate at 4GHz, and it is generally believed that beyond 4GHz, electromagnetic waves leak out of their sockets.
3,SMA Connector: SMA connector is a widely used coaxial connector with small threaded connection. It has the characteristics of wide frequency band, excellent performance, high reliability and long life. SMA connectors are suitable for connecting RF cables or microstrip lines in the RF circuits of microwave equipment and digital communication systems. They are often used in wireless devices for GPS clock interfaces on single boards and test ports for base station RF modules.
4,TNC Connector: The TNC connector is close to the BNC, and the biggest advantage of the TNC connector is that it has good shock resistance. The standard operating frequency of TNC connectors is 11GHz, and the precision TNC connectors are also called TNCA connectors, and the operating frequency can reach 18GHz.
5,SMB Connector: It is a small push-to-lock RF coaxial connector. It has the characteristics of small size, light weight, convenient use and excellent electrical performance. For connecting coaxial cables in the loop. It is often used in wireless equipment to connect the base station side E1 transmission cable to the base station DDF small transmission box, and the size is smaller than the SMA connector. There are two types of characteristic impedance: 50 ohms and 75 ohms. Has excellent electrical characteristics in the frequency range from DC to 4GHz. SSMB is a mini version of the SMB connector that can support up to 12.4GHz.
6,Type F Connector:Type F connectors are widely used in the fields of cable TV, satellite TV, cable modem and TV connection. It can be used in places with impedance matching requirements or in non-matching places. It is characterized by threaded connection and easy insertion. Stable performance.
7,7/16 DIN Connector: DIN type series coaxial connector is a larger 50 ohm impedance threaded connector, which has the characteristics of sturdiness and stability, low loss, high working voltage, and most of them have waterproof structure, which can be used for Outdoor as a medium and high energy transmission connector, it is widely used in microwave transmission and mobile communication systems. Commonly used in base station antenna feeder joints, antenna joints, etc.