Useful Coaxial Line Equations
Figure 1: Flexible coaxial line
Useful Coaxial Line Equations
Impedance:
Cut Off Frequency:
Symbols:
A = Attenuation
D = Inner diameter of outer conductor
(inches)
d = outer diameter of inner conductor (inches)
ε = Dielectric Constant
ρ = Resistivity in Ω·mm²/m
f = Frequency in Hz
l = Length
(feet)
Z = Characteristic Impedance
tan δ = Loss Tangent of Dielectric
Velocity of Propagation:
(in Per Cent of the light speed)
Dielectric Loss (in dB):
Reflection Loss (in dB):
Time Delay (in ns/ft):
Capacitance (in pf/ft):
