The cables themselves are useless unless they end with a kontakt or a more special coaxial kontakt. A coaxial kontakt allows one cable to be connected to another cable or a device. Therefore, there are two different types of kontakts: those connected to the cable and those connected to the device. The device kontakthar en fyrhåls fläns.
1. Kabel centraliseradkontakt
In a cable, the kontakt is mechanically tightly connected to the end of the cable. Once the kontaktär ansluten till en kabel, blir det en kabelmontering. RF -ingenjörer ansluter sedan varje del efter deras egna behov. När det bara behövs några få kabelsammansättningar är de billigare och snabbare att montera själva; men när det behövs en hel del kabelsammansättningar är det bättre att köpa kabelaggregat.
2. Anslutning
Målet med varjekontakt is the same, with minimum insertion loss. Although the insertion loss of the kontakt is very small compared with the cable, the kontakt does have an insertion loss, and there are many different types of kontakts. Almost all kontakt families have kontakts suitable for cables and devices. As a general rule, the kontakts of one group will not match the kontakts of another group.Because some kontakts are large in physical size, while others are small. If an inexpensive cable assembly is needed, then choose a small diameter cable, which limits the choice of kontakts to the small kontakt family available. If the cable needs to carry high-power radio frequency signals, a large-diameter cable is required, so a large connector krävs.
The second reason is evolution. As the times change, kontakt manufacturers often improve the connection according to actual needs, or reduce the insertion loss, or facilitate the use of the connection. Significant changes are made to an existing kontakt type each time.
3. Adapter
På grund av dessa olikakontaktfamiljer har ett intressant fenomen dykt upp. RF -ingenjörer tvingas ansluta en kabel med enkontakt to another cable or device with a different kontakt family. This cannot be done. The adapter is that they are in step. Adapters, also called coaxial adapters, are short bilateral kontakts. On one side is one type of kontakt, and once is another type of kontakt.
