A coaxial cable has a center conductor insulated from a conducting outer shield which blocks electrical noise from surrounding, thus provide stable, repeatable signal transmission.
Designed to transfer low-current, low or high voltage signals from low or high impedance sources across the vacuum wall.
A coaxial cable’s main characteristic is its impedance. Impedance is a function of the diameter and spacing of conductors and the insulator’s dielectric constant, but not the function of its length.
Double-ended is used where continuous air and vacuum RF shielding is required.
Single-ended is used where continuous shielding is not important.
BNC: Used in 50 and 75 ohms low power transmission lines
MHV: Used in medium power with high voltage requirement. Pins are exposed.
SHV: Used in high voltage. Male and female contacts are recessed for higher safety in disconnected condition
Multiple conductors are available depending on the connector type.
Grounded, Single end:
Grounded, Double end:
Floating Shield, Single & Double end