Figure 1
From: Leaky-Wave Radiations by Modulating Surface Impedance on Subwavelength Corrugated Metal Structures
The schematic of subwavelength corrugated metal structure as a 1D periodic leaky-wave antenna.
The center of the structure is a narrow slit which is connected to a feeding waveguide. The geometry parameters of the structure are given as: w = 1 mm, d = 3 mm, h = 2 ~ 2.9 mm, t = 15 mm, L = 11.5 mm, a = 12.5 mm, b = 0.5 mm and t = 15 mm. The waveguide has a size of 13 mm × 6 mm in the cross section and a longitudinal length of 8 mm. The number of corrugations in each side from the slit is 70. (a) Perspective view of the sample of corrugated metal structure. (b) Front view of the corrugated metal structure in simulation.
