Osama T. Antenna systems for radio monitoring stations.

The aim of the thesis is the development of antenna systems for radio monitoring stations, which is relevant and important nowadays. The problems of radio monitoring systems, the requirements for the levels of radiation of the electromagnetic field, the technical requirements for radio monitoring systems and the existing facilities and equipment of radio monitor-ing was analyzed. The directions of work for improving the antenna system radio monitoring stations were determined. The skeleton diagram of the circular view antenna with adaptation to the wave polarization, two-element adaptive antenna, and receiving-transmitting antennas with adaptive polarization were developed, and a scheme for the automatic measurement system for the study of the electromagnetic field was suggested. An analysis of the imprecision of the omni-directional antenna with circu-lar polarization was done. Imprecision in determining the incident direction of the interference wave for two-element adaptive antenna and the direction of the interference wave for antenna with the adaptive polarization was reviewed.