Evaluation of the Trapped Surface Wave of a Vertical Electric Dipole Based on Undetermined Coefficient Method in the Presence of N-Layered Region: A Graphical Approach

Figure 6

Graphical approach for root finding in evaluations of poles by (33) for the electromagnetic field due to a vertical dipole over a perfect conductor coated by four-layered lossless dielectrics, with (a) ; (b) ; (c) ; and (d) .

(a)

(b)

(c)

(d)