Akademik Veri Yönetim Sistemi
The terahertz frequency region is recognized as the future solution for increasing bandwidth demands of modern communication systems. It is important to design terahertz equivalents of radio frequency front-end components such as antennas with high performance and low cost, but it is still difficult to design wideband, low-profile antennas with highly directed radiation beams. The conventional patch antenna is narrowband and not suitable for wideband applications. To overcome this deficiency, this article aims to propose a solution to this problem with a novel multiple-slot pixel patch antenna for wideband terahertz applications by using appropriate material. The designed antenna was resonated at various frequencies with pixel-shaped cavities formed at different locations on the antenna radiating surface with the optimization. Strictly speaking, the impedance bandwidth of the antenna was increased, and broadband operation was also achieved. The proposed antenna has a volume of 300 um3 × 300 um3 × 20 um3, and has been made of standard, inexpensive FR4, which has distinctive characteristics including a dielectric constant of 4.4 and a loss tangent value of 0.02. The antenna has an impedance bandwidth of 0.32 THz starting at 0.59 THz and ending at 0.91 THz with a fractional bandwidth of 42.67%. The proposed system has maximum radiation efficiency and a gain of values of 70% and 4.04 dBi. When evaluated in terms of the results obtained, the suggested antenna can be applied to a variety of wideband THz applications including the material characterization processes and communication.
