Enhanced bandwidth “bull's eye” antenna using corrugated metalized plastic

This paper presents a plastic, surface plasmon (SP) enhanced bullseye antenna for millimeter wave and terahertz (THz) frequency range. A low refractive index plastic layer is used to confine incident electromagnetic energy to the structure. A metal grating layer focuses the incident wave through a subwavelength aperture via SP. The electromagnetic propagation characteristics were simulated and analyzed using both FDTD and commercial FEM software tools. The structure was also fabricated, and experimental data will be presented at the time of the conference.