FIELD: search-and-rescue works, particularly to search buried biological objects in earthquake zones or that covered with avalanche snow or caved rock.
SUBSTANCE: device comprises scanning and receiving/transmitting units. Scanning unit includes basic frequency generator 1, power amplifier 2, circulator 3, horn receiving/transmitting antenna 4, high-frequency amplifier 5, phase discriminator 6, computer 7, heterodyne oscillator 14, mixer 15, intermediate frequency amplifier 16, multiplier 17 and band-pass filter 18. The receiving/transmitting unit is made as piezo-crystal with aluminum thin-film interdigitated transducer linked to microstrip antenna, and a number of reflectors. Surface acoustic wave interdigitated transducer includes two comb-like electrode systems and buses to connect electrodes of each system with each other. The buses are in turn connected with microstrip antenna.
EFFECT: increased sensitivity and dynamic range of scanning block receiver, increased range of biological object information reading due to superheterodyne scheme of scanning block receiver.
2 cl, 3 dwg
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