Measurement of the Antenna Pattern in the Operating Frequency Band

The radiation patterns of broadband antennas have been measured in a laboratory using linear frequency modulation (LFM) of the signal. The investigations have been carried out on the basis of the Imitation−Full-scale Hydroacoustic Complex unique scientific installation (UNU “INGAK”) of the Department of Electrohydroacoustic and Medical Equipment at the Institute of Nanotechnologies, Electronics, and Instrumentation of Southern Federal University. A special feature of the experiment is that the antenna pattern data are recorded at once in the entire operating frequency band and the frequencies of interest are extracted by digital processing of the measured data.