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
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.
Useful Cable
Assembly Formulas
Velocity of Propagation
Attenuation:
Wave Length:
Characteristic Impedance:
Time Delay:
Cut Off Frequency:
