As for the connector, everyone must have seen it. The many applications of the connector in life make the connector one of the indispensable parts of modern life. Although the connector is like a follower in life, not all connector knowledge is known by ordinary people. Such as the relevant content of the antenna port connector and the packaging method of the FPC connector. In order to improve everyone’s understanding of the connector, in this article, the two issues mentioned will be discussed.
Antenna port connector analysis：
Reserving a radio frequency connector for cable connection on the antenna will make the antenna much easier to use. However, the history of coaxial radio frequency connectors is not long. The first radio frequency connector appeared in 1930, the coaxial radio frequency connector of UHF frequency band. In the 1940s, Americans designed a threaded radio frequency connector for military equipment below 5GHz. This is our commonly used N-type connector. Although there will be improvements in the future, the operating frequency will be changed. It has been upgraded to 18GHz, but its working principle and morphological characteristics have basically not changed. In the future, due to factors such as miniaturization, people have designed many types of connectors such as BNC type and SMA type, but the original design idea has always been inseparable.
But in recent years, the situation has changed a bit. Some foreign multinational groups have increased their investment in the technological innovation of coaxial connectors. For example, RADIALL and HUBER+SUHNER have developed quick connection forms of SMA and N connectors, QNA and QN connectors. Compared with the original SMA and N-type connectors, this new type of connector has the advantages of fast insertion and removal, not easy to loosen in a vibration environment, and does not affect the 360° rotation of the cable after insertion, and can achieve dense installation. It has replaced the original traditional coaxial connector in some fields.
However, this kind of quick-plug self-locking connector still has some problems when used in the antenna working in the field. Like the previous N-type and SMA-type connectors, this connector itself does not have the waterproof function, and it is in the unplugged state. There is also the problem of sand and dust protection. Recently, developed a non-contact quick-plug and self-locking RF connector. Different from the open port structure of the traditional connector, the port of this connector is closed, so it has good waterproof and dustproof functions. It does not need special waterproof measures when used in the field. Even wet connection in water is also It can ensure the smooth flow of the signal, which is especially convenient for the antenna working in the field.
Of course, compared with the traditional connector, this non-contact quick plug connector has other differences. Because it is non-contact type, this non-contact quick plug connector is not short-circuited by DC. In addition, the working frequency band is not as wide as traditional connectors. It can be from DC to more than a dozen GHz or even higher, but it can also work at One octave or even a wider frequency band, which is sufficient for most wireless projects at present.