transmission line

Parallel Wire Impedance

Computes the characteristic impedance, distributed inductance, capacitance, and propagation delay of a two-wire parallel transmission line from wire separation, wire diameter, and relative dielectric constant.

Inputs

Wire Separation(mm)

Centre-to-centre separation between the two wires in millimetres

Wire Diameter(mm)

Diameter of each wire in millimetres — must be less than wire separation

Relative Dielectric Constant

Relative permittivity of the surrounding medium — air: 1, PTFE: 2.1, polyethylene: 2.3

Results

⚠Wire diameter must be greater than zero

Inductance—nH/cmDistributed inductance per centimetre in nanohenries

Capacitance—pF/cmDistributed capacitance per centimetre in picofarads

Parallel Wire Impedance—ΩCharacteristic impedance of the parallel wire line in ohms

Propagation Delay—ps/cmPropagation delay per centimetre in picoseconds