Surface waves on periodic array of imperfectly conducting vertical dipoles over the flat earth

The theory is developed for surface waves on a periodic array of imperfectly conducting vertical dipoles over the flat earth. Expressions are presented for the surface-wave fields and for the transcendental equation whose root determines the complex propagation constant of the surface wave. Contour plots are included showing the attenuation constant and phase velocity as functions of dipole spacing and dipole length, with lengths up toλ/2. Included are measured and calculated data in the region where the surface wave attenuates rapidly even on a perfectly conducting array.