Useful
Formulas

Useful
Formulas

These helpful formulas can be used to calculate expected phase change of Dynawave coaxial cables for any given temperature range, as well as for an array of uses for cable assemblies.

Scroll down to find formulas for determining attenuation, wavelength, characteristic impedance, time delay, and more.

PPM Calculations

PPM Calculations

The electrical Phase length of any coaxial cable will change over temperature. To calculate the expected phase change of a Dynawave cable for any given temperature range use the following method.

Calculate the phase change of a 36 inch long DF118 assembly at -30 C at 12 GHz.
Determine the absolute phase (?) of the assembly at 25 C.

From the DF100 series ppm charts -30 C produces 1300 ppm of phase change.

phase change

Useful Cable 
Assembly Formulas

Useful Cable
Assembly Formulas

Velocity of Propagation

Velocity of Propagation

Attenuation:

attenuation

 

Wave Length:

wave length

 

Characteristic Impedance:

Characteristic Impedance

 

Time Delay:

time delay

 

Cut Off Frequency:

Cut Off Frequency