Coaxial Transmission Line Calculator

The Coaxial Transmission Line Calculator provides calculations for the characteristic impedance, line parameters (inductance, and capacitance), and cutoff frequency of a coaxial cable. 

Coaxial Cable Calculator

Coaxial Cable Calculator

Characteristic Impedance (Z0): 0 Ω

Capacitance per unit length (C): 0 pF/ft

Inductance per unit length (L): 0 nH/ft

Cutoff Frequency (fc): 0 GHz

Propagation Velocity (v): 0 c

Formulas Used

In the following formulas, D is the outer conductor diameter, d is the inner conductor diameter, and εr is the relative permittivity of the dielectric. 

Characteristic impedance:

Capacitance (C) per unit length:

Inductance (L) per unit length:
Cut-off frequency (fc) in GHz:
Propagation velocity (v) as a
fraction of the speed of light in vacuum:

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