Attenuation coefficient in dielectric¶
A coaxial waveguide is an electrical cable consisting of a central conductor and a shield arranged coaxially and separated by an insulating material or an air gap. It is used to transmit radio frequency electrical signals. The attenuation coefficient of a coaxial waveguide depends on the frequency of signal, as well as on the permittivity, the permeability and the dielectric loss angle of the insulator material.
- attenuation_coefficient¶
attenuation_coefficientof the waveguide.
- Symbol:
alpha- Latex:
\(\alpha\)
- Dimension:
1/length
- absolute_permittivity¶
absolute_permittivityof the insulator.
- Symbol:
epsilon- Latex:
\(\varepsilon\)
- Dimension:
capacitance/length
- absolute_permeability¶
absolute_permeabilityof the insulator.
- Symbol:
mu- Latex:
\(\mu\)
- Dimension:
inductance/length
- angular_frequency¶
angular_frequencyof the signal.
- Symbol:
w- Latex:
\(\omega\)
- Dimension:
angle/time
- loss_tangent¶
- Symbol:
tan(delta)- Latex:
\(\tan \delta\)
- Dimension:
dimensionless
- law¶
alpha = w * sqrt(epsilon * mu) * tan(delta) / 2- Latex:
- \[\alpha = \frac{\omega \sqrt{\varepsilon \mu} \tan \delta}{2}\]