Figure 1
From: Spoof Surface Plasmon Polaritons Power Divider with large Isolation
The configuration of the SSPPs waveguide with three divided sections. (a) The combination of CPW and SSPPs, in which L1 = 16.3 mm, L2 = 17.5 mm, L3 = 29.4 mm, and W = 50 mm. (b) The CPW section, in which g = 0.2 mm, feedW = 2.3 mm. (c) The match section with ten oval-rings of gradient scale and flaring ground. (d) The corrugated metal strip composed of oval-ring shaped periodic structures, in which the ellipse long axis radius y0 = 5.2 mm, the ellipse short axis radius x0 = 1.2 mm, the width of the oval-ring dy = 0.4 mm, and the distance between the two adjacent oval-ring centers p = 2.1 mm. (e) The electrical amplitude distributions of 5 marked planes along the x-axis direction. (f) The electrical amplitude distributions of 5 marked planes perpendicular to the x-axis direction. (g) The magnetic distribution of oval-ring SSPPs waveguide at 8 GHz in x-y plane.
