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 5

Graphical approach for root finding in evaluations of poles by equations from (25)–(27) at the operating frequency f = 100 MHz for the electromagnetic field due to a vertical dipole over a perfect conductor coated by multilayered lossless dielectrics, with (a) N = 3, ; (b) N = 4, ; (c) N = 5, ; (d) N = 5, ; (e) N = 3, ; (f) N = 4, ; (g) N = 5, ; and (h) N = 5, .

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