skrf.media.circularWaveguide.CircularWaveguide.alpha_c¶

property CircularWaveguide.alpha_c: Union[Number, Sequence[Number], ndarray]¶

Loss due to finite conductivity of the sidewalls for the fundamental mode TE11. Higher order modes are not implemented, as well as effects due to surface roughness.

In units of Np/m

See property rho for setting conductivity.

Effects of finite conductivity are taken from 1, but expressed in the same terms as in 2.

References

1: Eq. (3.133), Chapter 3.4, Microwave Engineering, Pozar David, 2011
2: Eq. (9.8.1), Chapter 9, Electromagnetic Waves and Antennas by Sophocles J. Orfanidis http://eceweb1.rutgers.edu/~orfanidi/ewa/