Nano-antenna (function and applications)
Researcher and author: Dr. ( Afshin Rashid)
Note: The nano network has more communication and processing potentials that overcome the limitations of independent nano devices through the cooperation of nano devices. One of the issues that has not been well resolved in nanotechnology is how to establish an electrical connection between nanoelectronic equipment and the macroscopic world without losing the capabilities of these nano elements.
One of these fields and new functions of nano technology are nano antennas, which are used in various fields such as nano sensors, nano communication networks , electric energy production and other similar topics, and as one of the current fields of technology development. Nano are mentioned. At the nanoscale, graphene-based antennas are used to transmit EM waves . Graphene is a very thin monoatomic sheet of confined carbon atoms placed on a crystal lattice . Due to the very small dimensions of nano sensors, nano antennas need to have a very high working frequency to be usable. However, the use of graphene helps to solve this problem to a great extent. Due to the The development of the technology of manufacturing equipment in nano dimensions, the possibility of manufacturing nano antennas and using them in various applications has been provided. Communication between nano devices is a fundamental challenge related to the development of nano antennas and related electromagnetic receivers. Reducing the size of the traditional antenna to hundreds of nanometers leads to very high performance frequencies . At THz band frequencies, the very large available bandwidth leads to much higher path loss than lower frequency bands . Nano antennas can be made of metallic materials such as silver , aluminum, chromium , gold, and copper, or they can be made of new materials such as CNTs and graphene, which is an attractive choice for nano antennas. By using graphene to make antennas, size and communication limitations can be overcome. In addition, the resonance frequency of nano-antennas based on graphene can be up to two orders of magnitude higher than that of nano-antennas made with other materials.
GTN or graphene in making nano antennas
Graphene is one of the allotropes of carbon. This flat material consists of carbon atoms in which the atoms are connected in a two-dimensional and honeycomb-like network. This material has the thickness of one atom, which gives it unique properties. In fact, graphene is a term that refers to very thin strips of single layers of graphite. Currently, graphene is widely used as a basic element in the design and construction of various nanoscale antennas. Considering that establishing communication between equipment and Nano devices and data transmission and processing systems are needed in most fields of electrical engineering, the issue of designing and manufacturing antennas that can be used in nano systems and even introduce new functions to the world of industry is very important. and has become a new topic in the electrical industry and nanotechnology.
Conclusion :
The nano network has more communication and processing potentials that overcome the limitations of the independent nano device through the cooperation of nano devices. One of the issues that has not been well resolved in nanotechnology is how to establish an electrical connection between nanoelectronic equipment and the macroscopic world without losing the capabilities of these nano elements.
Researcher and author: Dr. ( Afshin Rashid)
Specialized doctorate in nano-microelectronics