WITHDRAWN: Performance Analysis of Hybrid Plasmonic Terahertz Waveguide fed Patch Antenna

Abstract To achieve high data rates and higher bandwidth, Terahertz (THz) radiation is a promising candidate for next generation wireless communications. This research study demonstrates that performance analysis of THz hybrid plasmonic waveguide fed patch antenna constructed around 2.5 to 3.5 THz. A hybrid plasmonic THz waveguide was used as a feed line for designed THz patch antenna to increase the antenna efficiency. The proposed plasmonic waveguide fed antenna consists of Gallium Arsenide (GaAs), a high index material enclosed by low index material of Aluminium Arsenide (AlAs) and silver (Ag) to confine the light inside the GaAs region. A graphene film is placed between high density polyethylene (HDPE) in order to increase the light confinement. The variation of width and height of the GaAs region, the parameters effective refractive index, mode area, dispersion, confinement loss, birefringence, beat length, waveguide fed antenna gain, efficiency and bandwidth have been studied using mode analysis by finite element method. Utilizing finite element approach, the simulation results of proposed hybrid plasmonic THz waveguide fed patch antenna shows effective refractive index of 3.79, birefringence of 0.2, beat length of 123 mm, mode area of 1.88 mm 2 , mode field diameter of 15.8 mm, normal dispersion of 0.10 ps/THz/cm, low confinement loss of 1.79 x 10 − 9 mm − 1 , waveguide fed antenna gain of 5.11dBi, bandwidth of 112.9 GHz, efficiency of 76% in the range of 2.5 to 3.5 THz. The proposed THz waveguide fed antenna can be feasible for various photonic integrated circuits for future THz communication applications.