Role of Impedance in coaxial cable
If you want to know the significance of impedance in coaxial cable, then I am giving here a brief but a clear point about the impedance. A question that is often asked is what the significance of a 52 or 75 ? characteristic impedance is. The best coaxial cable impedances to use in high-power, high-voltage, […]
The shield of Coaxial cable
There is also a lot of variety in the shield. Conventional coaxial cable has braided copper wire forming the shield. This allows the cable to be flexible, but it also means there are gaps in the shield layer. It also means the inner dimension of the shield varies slightly because the braid cannot be flat. […]
Description of Coaxial cable
Coaxial cable design choices affect physical size, frequency performance, attenuation, power handling capabilities, flexibility, and cost. The inner conductor might be solid or stranded; stranded is more flexible. To get better high-frequency performance, the inner conductor may be silver plated. Sometimes copper-plated iron wire is used as an inner conductor.
The insulator surrounding the inner conductor […]
Connectors of Coaxial cable
Every cable has a connector and likewise coaxial cable has a connector. From the signal point of view, a connector can be viewed as a short, rigid cable. The connector usually has the same impedance as the related cable and probably has a similar cutoff frequency although its dielectric may be different. Some connectors are […]
Signal Propogation in Coaxial Cable
Open wire transmission lines have the property that the electromagnetic wave propagating down the line extends into the space surrounding the parallel wires. These lines have low loss, but also have undesirable characteristics. They cannot be bent, twisted or otherwise shaped without changing their characteristic impedance. They also cannot be run along or attached to […]
Coaxial Cable and its application
I just want to give a brief definition of coaxial cable which is the one of the most commonly used cables. Coaxial cable is an electrical cable consisting of an inner conductor surrounded by an insulating spacer, surrounded by an outer cylindrical conductor. The term coaxial comes from the inner conductor and the outer shield […]
Coaxial cable and television cable
Coaxial cables are capable of bi-directional carriage of signals as well as the transmission of large amounts of data. Cable television signals use only a portion of the bandwidth available over coaxial lines. This leaves plenty of space available for other digital services such as broadband internet and cable telephony.
Broadband internet is achieved over coaxial […]