Optimize your RF designs with our comprehensive Coax Cable Calculator. Quickly determine critical coaxial cable parameters like characteristic impedance, capacitance, inductance, velocity factor, and total signal attenuation. This tool is indispensable for RF engineers, ham radio operators, and anyone working with RF transmission lines and antenna systems, ensuring precise component matching and signal integrity.
Formula:
Key Formulas Used:
- Characteristic Impedance (Z0): Z0 = (60 / √εr) × ln(D/d)
- Capacitance per unit length (C): C = (2 π ε0 εr) / ln(D/d)
- Inductance per unit length (L): L = (µ0 / (2 π)) × ln(D/d)
- Velocity Factor (VF): VF = 1 / √εr
Where:
- d: Inner conductor outer diameter (meters)
- D: Outer conductor inner diameter (meters)
- εr: Relative Dielectric Constant of insulation (unitless)
- ε0: Permittivity of free space (8.854 × 10-12 F/m)
- µ0: Permeability of free space (4π × 10-7 H/m)
- ln: Natural logarithm