APPARATUS FOR INVESTIGATING ELECTROMAGNETIC FIELD OF SECONDARY EMITTERS Russian patent published in 2015 - IPC G01R29/08 

FIELD: radio engineering, communication.

SUBSTANCE: apparatus comprises a clock-pulse generator, a radiation spectrum former, an antenna switch, a receiving-transmitting antenna system, an adaptive converter, a secondary emitter radiation information generator, a frequency spectrum converter, a filter unit, a radiation spectrum analysis unit and a secondary radiation spectrum analysing unit. The output of the clock-pulse generator is connected to the input of the radiation spectrum former; twenty eight outputs of the radiation spectrum former are connected to twenty eight inputs of the antenna switch; twenty eight outputs/inputs of the antenna switch, from the first to the twenty eighth, are connected in parallel to twenty eight inputs/outputs of four receiving-transmitting antenna systems; twenty eight outputs of the antenna switch, from the twenty eighth to the fifty sixth, are connected through the adaptive converter to twenty eight inputs of the secondary emitter radiation information generator; the output of the information generator is connected through the frequency spectrum converter, through ten outputs of the filter unit, to ten inputs of the secondary radiation spectrum analysis unit; ten outputs of the analysis unit are connected to ten inputs of the radiation spectrum analysis unit.

EFFECT: automation of analysis of frequency properties of the secondary radiation field of investigated objects and levels thereof.

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