Figure 3
From: Inverse design of compact power divider with arbitrary outputs for 5G applications
(a) periodic array of dielectric vias embedded in the grounded substrate, of which the upper side is covered by metal in areas without holes. The geometric parameters of the structure are \(a = 0.7\) mm and \(r =0.2\) mm. (b) dispersion curves for the mode propagating along the red arrow, i.e., the x-direction, in the periodic structure (a) for some discrete value of \(\varepsilon _r\). (c) dispersion curves for variation of loss tangents for \(\varepsilon _r = 10\).
