Investigation and Analysis of Nanowire Antennas for Terahertz Frequency Range Applications

Abstract

In the presence of electromagnetic fields, metal-coated nano-fibers act as antennas. Due to the physical structure of nanofibers, i.e., radii in the range of nanometers and lengths in the range of millimeters, they can be treated as excellent linear antennas. The application of the nano-antenna is in the early stages of development. In current literature, a model for an infinitely long, finite conductivity carbon nanotube as an antenna can be found. Consider finite-length metal-coated nanofibers, which are relatively inexpensive to produce. This paper examines the feasibility and difficulties of implementing metal-coated nano-antennas. The analysis includes an exact formulation, well known as Hallen’s equation, which includes an exact kernel. In this paper, it accurately calculates current distribution along a nanowire antenna using the exact kernel. While doing so, the singularities present in it are analytically removed. Many such fibers are thought to construct a nanofiber mat, on which current distribution can be calculated. The result is important for the calculation of the power profile over the mat due to the electromagnetic effect in general. For a nanowire with a nanometer radius, the assumption holds true for the higher frequency ranges, including the terahertz frequency range. Finally, an implementation for simple transceiver systems using nanowire antennas has been introduced and tested to meet the requirements for terahertz frequency range applications.