Design and Investigation of Photonic Crystal Antenna Performance for Expeditious Data Rate in Wireless Communication

The current wireless technology adopted 5G (Generation) communication, and more research is analyzed towards 6G too. The switching of various Gs is due to achieving a high data rate speed and effective transmission. The terahertz (THz) band helps achieve a high data transmission rate in Terabit per second (Tbps). This manuscript proposed the THz-based photonic crystal (PhC) antenna and investigated the effect of a line defect. In the PhC triangular substrate, the line defect is implanted in horizontal and vertical directions. The antenna performances like return loss, directivity and voltage standing wave ratio (VSWR) are examined. The simulated results conclude that the horizontally oriented defective PhC antenna provided superior antenna performances than the vertically oriented defective PhC structure. The simulated results of the defected PhC antenna exhibited excellent characteristics like −50.60 dB return loss, 1.00 value of VSWR and directivity of 8.96 dB at 1.58 THz frequency. Hence, the proposed defective PhC antenna is applicable for high-speed wireless transmission in terms of Tbps, various medical applications, etc.