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Information × Registration Number 0212U007742, 0109U009071 , R & D reports Title Theoretical and experimental research of noise immunity of receiving antennas of the ground and space radiocommunication systems popup.stage_title Head Lobkova Ljubov Mihajlovna, Registration Date 03-12-2012 Organization Sevastopol National Technical University popup.description2 Object of study - highly directional antenna diffraction, operate in sending or receiving on lines with non-uniform atmosphere and the near- omnidirectional antenna with circular polarization of the radiation field. Purposes of the study: -the development of engineering techniques for determining of the optimal geometric parameters of the receiving antennas in order to increase their noise immunity; -development of near-omnidirectional and highly-directional antenna with circular polarization of the radiation field with high noise immunity. Research methods. A method based on the analysis of the relationship of input power received by the antenna at the actual condition, to the power, which is determined in the case of a homogeneous atmosphere is used. The method of the moments is used. In the final report for 2012 y. The formulas that allow to optimize the geometric parameters of the receiving horn and antenna arrays with the characteristics of non-homogeneous atmosphere. The regularities for the envelope of the field in the focal plane of the receiving antenna are obtained. Designed helix antenna. Designed the antenna with omni-directional in azimuth plane radiation field of circular polarization. The recommendations for the implementation of the five antenna systems are suggested. The conical spiral antennas are investigated. The regions of implementation of the results: the system of space and ground radio communication systems; systems of communication with mobile objects, radar systems, navigation, radio astronomy, television, the wireless networks. Product Description popup.authors Акимов Олег Олегович Барашова Ольга Миколаївна Барковский Алексей Александрович Головін Владислав Вікторович Лисецкий Игорь Викторович Лук'янчиков Андрій Володимирович Стукалов Максим Александрович Тищук Юрій Миколайович popup.nrat_date 2020-04-02 Close