Maximum voltage in coaxial line

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. An electrical breakdown is a phenomenon of a sharp increase in current that occurs when the field intensity is higher than the critical one — dielectric breakdown intensity.

maximum_voltage

Maximum voltage between the central conductor and the outer conductor.

Symbol:

V

Latex:

\(V\)

Dimension:

voltage

breakdown_electric_field

electric_field_strength of dielectric breakdown.

Symbol:

E

Latex:

\(E\)

Dimension:

voltage/length

outer_diameter

diameter of the outer conductor.

Symbol:

d_o

Latex:

\(d_\text{o}\)

Dimension:

length

inner_diameter

diameter of the inner conductor.

Symbol:

d_i

Latex:

\(d_\text{i}\)

Dimension:

length

law

V = E * d_o * log(d_o / d_i) / 2

Latex:

\[V = \frac{E d_\text{o} \log \left( \frac{d_\text{o}}{d_\text{i}} \right)}{2}\]