  This work derives exact expressions for the voltage and current induced into
a two conductors non isolated transmission lines by an incident plane wave. The
methodology is to use the transmission line radiating properties to derive
scattering matrices and make use of reciprocity to derive the response to the
incident wave. The analysis is in the frequency domain and it considers
transmission lines of any small electric cross section, incident by a plane
wave from any incident direction and any polarisation. The analytic results are
validated by successful comparison with ANSYS commercial software simulation
results, and compatible with other published results.
