FIELD: physics.
SUBSTANCE: detector has a first and a second microwave balance mixer, a power adder, a first and a second microwave converter, a reference generator, a transmitting and a receiving antenna, a master generator, a heterodyne, a first intermediate frequency amplifier, a multiplier, a second intermediate frequency amplifier, a 90° phase changer, a 90° microwave phase changer, a power halver, a first and a second phase detector, a first and a second low frequency amplifier, a first and a second comparator with a reference voltage unit, a first and a second pulse counter with a count interval generator and a detection signal generator.
EFFECT: improved characteristics of detecting people from their breathing or heartbeat.
1 dwg
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