▎ 摘　　要

NOVELTY - The fractal butterfly-shaped terahertz antenna comprises fractal units (1) connected to a fractal unit connecting block (2), a tip convergence plate (3) and an electromagnetic wave drainage tail (4). The antenna is made of graphene material. The electromagnetic wave draining tail is connected to the two ends of the component connecting sequence at two ends through the fragment connecting block. The fragment connecting blocks are connected on 1-n, where n is more than 0 and less than or equal to 50. The fractal units are connected by the fragmenting units connecting block, and at last, the fragment-connecting unit is connected with the tip convergence plate to form a complete antenna. USE - Fractal butterfly terahertz antenna for terahertz wireless communication system. Uses include but are not limited to fields of celestial physics, biological medicine, non-destructive detection, confidential communication, explosive detection, human safety, fire monitoring and national defense safety. ADVANTAGE - The antenna improves the detection rate of the terahertz detector and target identification accuracy, which can improve the higher working frequency band of the detector in the terahertz field. The resonant frequency of the antenna can be tuned by appropriately modifying and scaling the geometry of the fractional butterfly antenna, such as the arm length, the flare angle and the feed gap width. The fractal antenna can work in the broadband range of the 0.1-10THz, and can flexibly switch between different frequency bands. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of a size structure parameter of a fractal butterfly terahertz antenna. Fractal units (1) Fractal unit connecting block (2) Tip convergence plate (3) Electromagnetic wave drainage tail (4)