(electrical - telecommunication nano antenna) dimensions of nano antenna and set of nano telecommunication systems
Researcher and author: Dr. ( Afshin Rashid)
Note: The dimensions of the antenna and nano system or nano sensor set, working frequency, power losses, range and dimensions of the sensor network, the structure and facilities of the power supply system and the physical communication platform between different parts of a nano system are the main factors and parameters that every One is decisive and determines the ability to build and the performance of the final system.
A nano network is a nano scale communication network between nano devices. Nano devices face special challenges in performance due to limitations in power management processing ability . Therefore, these devices are expected to perform simple tasks that require different and new approaches. In the molecular communication system, the transmitter sends information through chemical molecules called information molecules, and after it is released in the environment, it is received and decoded by the communication receiver. A network of communication nanoparticles can cover a wider area and perform more network processing . In addition, there are several nanocommunication technologies that require the use of external stimulation and measurement to work Wireless communication between nano network and micro and macro devices and equipment can meet this need.
In general, in order to receive the electromagnetic wave in the space, the dimensions of the antenna must be in the same order as the wavelength of the input to its surface. Due to the very small dimensions of nano sensors, nano antennas need to have a very high working frequency to be usable. The use of graphene helps to solve this problem to a great extent. The speed of propagation of waves in CNTs and GNRs can be 100 times lower than its speed in vacuum, and this is related to the physical structure, temperature and energy. Based on this, the resonance frequency of graphene-based nano-antennas can be two times lower than nano-antennas based on nano-carbon materials. It has been mathematically and theoretically proven that a quasi-metallic carbon nanotube can emit terahertz radiation when a time-varying voltage is applied to its sides. Despite the possibilities of making nanotubes with a length of several centimeters, it is possible There is the construction of electrical conductors with a ratio of length to width of the order of 10^7 . At first glance, nanotube antennas give us the impression that they are similar to dipole antennas designed in small dimensions. But in fact it is not the case in the main theory of Dipole antennas to determine the distribution of current on the antenna, that the Dipole radius is larger than the skin depth and also the resistance loss is so low that it can be neglected.
Conclusion :
Antenna dimensions and nano system or nano sensor set, working frequency, power loss, range and dimensions of the sensor network, the structure and facilities of the power supply system and the physical communication platform between different parts of a nano system are major factors and parameters, each of which It is a kind of determinant and determines the ability to build and the performance of the final system.
Researcher and author: Dr. ( Afshin Rashid)
Specialized doctorate in nano-microelectronics