Broadband Dipole-Loop Combined Nanoantenna Fed by Two-Wire Optical Transmission Line

Figure 18

Voltage reflection coefficient as a function of frequency; the parameters are = 200 nm, = 1200 nm, = = = 20 nm, = 60 nm, = 50 nm, = 50 nm, = 20 nm, = 5, = 4, = 13, = 29, and = 104.