Denis Yuzvik, a graduate of Novosibirsk State Technical University, Candidate of Technical Sciences, has developed a mathematical apparatus for determining the position of the focus point, taking into account the location of the maximum amplitude of the electric field strength, which will ensure the maximum signal-to-noise ratio at the desired point in space.
Denis Yuzvik, together with the Department of Radio Receivers and Radio Transmitting Devices at NSTU-NETI, conducted an experimental assessment of the possibility of positioning the maximum amplitude of the electric field strength at the required point in space. The study is necessary to ensure the maximum signal-to-noise ratio at the required point in space, which is necessary for high-speed information transmission in next-generation wireless networks.
"Currently, scientists all over the world are developing new generation wireless networks, including 6G. For them, the possibilities of operating devices in the near zone are being considered, unlike current networks that operate in the far zone. Focusing in the far zone allows you to control the field beam only in the angular direction. Focusing in the near zone allows you to form zones of high tension, that is, it becomes possible to control the field not only by angular coordinate, but also by range," the scientist said.
The study was a continuation of the work of scientist Robert Hansen, who found that when focusing the field in the near zone, the maximum amplitude of the electric field strength will be shifted towards the antenna array relative to the focus point. This is due to the effect of decreasing the intensity of the electromagnetic wave with increasing distance. Focusing the antenna array to a given point does not lead to the positioning of the maximum amplitude of the electric field strength to the desired point in space. Therefore, the antenna array needs to be focused at a long distance.
Specifically for the research, Denis Yuzvik developed a mathematical apparatus for determining the position of the focus point, taking into account the required location of the maximum amplitude of the electric field strength, and Vadim Sokolov, a graduate student of the department, conducted an experimental verification of the theoretical results. The measurements were carried out under the supervision of the head of the Department, Doctor of Technical Sciences, Professor Maxim Stepanov on a stand containing an antenna array focused at a set distance. The stand was located in a radio-anechoic chamber. According to Denis Yuzvik, the theoretical results coincided with the experiment, and the positioning method was patented and published in the journal.
Note earlier Denis Yuzvik once worked out a method for calculating local minima of the electromagnetic field in several regions of space. Currently, this is a unique development that makes it possible to obtain the required distribution of the electromagnetic field in space, including in order to reduce interference to the operation of specialized equipment and ensure an acceptable signal level at other points in space.