Lykhograj V. The analysis and optimization of the field performances in the Fresnel zone of aperture radiation systems with phase fluctuations of the field excitation

The thesis is devoted to the analysis and optimization of transmitting aperture antennas, the amplitude and phase distribution (АРD) of which is realized with errors for power transmission system by a microwave beam (PTSMB) with receiving antennas of two types: rectenna and aperture antenna with specific APD. The influence of linear, quadratic, cubic and casual (random) phase errors on the average intensity of a field distribution in a focal plane is investigated. The influence of excitation field fluctuations of a PTSMB transmitting antenna with a receiving aperture antenna is investigated and the dependence of average efficiency of a PTSMB transmission from parameters of fluctuations, wave parameter and type of aperture distribution are detected. The tasks of statistical synthesis of an optimum aperture distribution of a PTSMB transmitting antenna on a criterion of a maximum average efficiency of transmission are solved for a given parameters of fluctuations receiving antennas of indicated types. Wit h consideration of obtained data the tolerances of antennas production of some PTSMB projects are defined and the comparative analysis of PTSMB with various receiving antennas from a point of view of their effectiveness is conducted.