How to Choose a Coax Cable

ZOMWAVE offers many coaxial connectors. In this article, we will share some tips on how to choose coax cable.

Coax cable are commonly used in systems that only consider impedance due to their weak shielding effect.

The flexible TV cable is a variation of the TV cable. With continuous impedance, better shielding effect, easy-to-bent trait and low prices, it is widely used in the computer industry. Therefore, it cannot be used in systems that require high shielding performance.

Shielded flexible coaxial cables have removed the inductance and capacitance and are mainly used in instruments and buildings.

Flexible coaxial cable has become the most common enclosed transmission cable due to its special performance. Coaxial means that the signal and ground conductors are on the same axis. The outer conductor is fine-braided, so it can be called braided coaxial cable. This cable has a good shielding effect on the center conductor and its shielding efficiency depends on the type of braided wire and the thickness of the braided layer.

Semi-rigid cables are usually used when referring to high frequencies.

Mainly, there are two coax cable methods: A. Welding the center conductor and screwing the shielding layer. B. Crimping the center conductor and the shielding layer. Other methods are variations of the above two methods, such as: welding the center, conductor, crimping the shielding layer. Method A is used when special installation tools are available. Because of the high efficiency, reliable termination performance and the special crimping tool which ensures that every coaxial cable assembly produced the same crimping installation method will become increasingly popular.

Coaxial connector can be used for radio frequency coaxial cables, printed circuits and other connection interfaces. It is proved that a certain form of connection matches a certain type of cable. Generally, cables with small coax cable are connected to small connectors such as SMA connector and SMB connector. Better refer to the cable size list when selecting the connector.

The price of a connector is greatly affected by its structure. The design of each connector must consider military standards and commercial standards. Military standard MIL-C-39012 specifies that connectors must be made all copper parts, PTFE insulation, coax cable, reliable performance. Commercial standard requires cheaper materials such as brass castings, polypropylene insulation, silver plating.

Follow these four points, we are pretty sure that you will find the suitable coax cable. Inform us if you have any doubts concerning coaxial connectors. We are glad to be at your service.