What is Coaxial
Coaxial cable is a two conductor electrical cable with a
center conductor and an outer conductor and an insulating spacer
between the two.
How is Coaxial
In most cases coaxial cables are used for the transmission of
Radio Frequency. The cable offers tight control over electrical
impedance. This offers excellent performance at high frequencies and
superior EMI control and shielding.
is Coaxial Cable used?
A broad range of applications exist for coaxial cabling. The
two primary impedance values of 50 and 75 Ohms determine specific
applications with 50 Ohms primarily used in data signal applications
and 75 Ohms used in video signal applications.
Coaxial Cable Terms:
(Insertion Loss): Loss of power. Attenuation is
usually measured in dB loss per length of cable (ex. 31.0
dB/100Ft.). Attenuation increases as frequency increases.
Bend Radius: The
amount of radius a cable can bend without any harmful effects.
Center Conductor: The
solid or stranded wire in the middle of the coaxial cable. The
conductor diameter is measured by the American Wire Gauge (AWG).
Coaxial Adapter: A
device used to change one connector type to another or one gender to
another (ex. TNC to SMA Adapter).
Coaxial Cable: A two
conductor cylindrical transmission line typically comprised of a
center conductor, an insulating dielectric material and an outer
conductor (shielding). Coaxial cable can be flexible (typical of
L-com assemblies), semi-rigid or rigid in nature.
Coaxial Connector: The
interconnection device found at each end of a coaxial cable
assembly. There are many common types of coaxial connectors such as:
BNC, SMA, SMB, F, etc.
insulating material that separates the center conductor and the
Electromagnetic Interference (EMI):
Electrical or electro-magnetic energy that disrupts electrical
Frequency: The number
of times a periodic action occurs in one second. Measured in Hertz.
Impedance: In simple
terms, impedance, in a coaxial product, is the measurement of
resistance to the flow of current. The unit of measurement is Ohms.