The input file formats for the cable_model_builder are specific to each defined cable type.
The formats are as follows:

1. Simple cylindrical wire

0.25mm_radius_wire	   # Cable name
cylindrical	   # Cable type
1	   # number of conductors
8	   # number of parameters
0.25e-3   # parameter 1: conductor radius (m)
0.5e-3     # parameter 2: outer insulation radius (m)
1.0	   # parameter 3: outer dielectric permittivity (air)
5.8E7	   # parameter 4: conductor conductivity (S/m)


2. Coaxial cable

RG58	   # Cable name
Coax	   # Cable type
2	   # number of conductors
8	   # number of parameters
0.455e-3       # parameter 1: inner conductor radius (m)
2.35	   # parameter 2: inner dielectric permittivity (polythene)
1.75e-3        # parameter 3: shield conductor radius (m)
2.5e-3         # parameter 4: outer insulation radius (m)
3.0	   # parameter 5: outer dielectric permittivity (PVC)
5.8E7	   # parameter 6: inner conductor conductivity (S/m)
0.1E-3	   # parameter 7: shield conductor thickness (m)
5.8E7	   # parameter 8: shield conductor conductivity (S/m)

In addition to the cable geometry and material specification we can specify a transfer impedance
in three ways:
1. R+jwL model
2. Tabulated complex impedance data f, re{Z}, Im{Z}
3. Derived from braid geometry

The inputs to the cable_model_builder for the three transfer impedance specification types.
are as follows:


1. R+jwL model
#Transfer Impedance model: R+jwL model;  R(ohms/m)   L(H/m)
0.0        0.250E-8

2. Tabulated complex impedance data;  f, re{Z}, Im{Z}
# tabulated complex transfer impedance data;  f, re{Z}, Im{Z};  f(Hz),  Z(ohms/m)
1000    # number of frequency domain samples
f1       Re{Z(f1)}     Im{Z(f1)}
f2       Re{Z(f2)}     Im{Z(f2)}
.
.
.
f1000    Re{Z(f1000)}  Im{Z(f1000)}

3. Derived from braid geometry (TO BE SPECIFIED BY NLR - A REPRESENTATIVE DATASET FOLLOWS)
#Braid geometry
    # Braid wire diameter, d (m)
    # Number of wires in a carrier, N
    # Number of carriers, C
    # Wire conductivity, sigma (S/m)
    # pitch angle, alpha (degrees)